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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2402. Отображено 100.
10-02-2010 дата публикации

УСТРОЙСТВО ДЛЯ ВЗВЕШИВАНИЯ ЕМКОСТИ

Номер: RU0000091334U1
Автор: Лебедев Юрий Борисович, Солнцев Константин Евгеньевич, Черкасский Сергей Григорьевич
Принадлежит: ЗАКРЫТОЕ АКЦИОНЕРНОЕ ОБЩЕСТВО "ВЕСОИЗМЕРИТЕЛЬНАЯ КОМПАНИЯ "ТЕНЗО-М"

Устройство для взвешивания емкости, содержащее опору, опорные узлы, размещенные на емкости, консольные датчики веса, размещенные на опоре, силопередающие узлы, соединяющие с консольными датчиками веса опорные узлы, размещенные на емкости, электронный преобразователь сигналов датчиков, отличающееся тем, что, с целью повышения быстродействия, точности взвешивания и уменьшения габаритных размеров, каждый силопередающий узел выполнен в виде опоры качения, каждая из которых содержит по два силовводящих узла с обращенными друг к другу вогнутыми сферическими поверхностями, между которыми размещен шар, касающийся вогнутых сферических поверхностей в их центрах, так что центры каждого из шаров и касающегося его вогнутых сферических поверхностей лежат на одной вертикали, при этом первый силовводящий узел каждого силопередающего узла соединен с консольным датчиком веса, второй силовводящий узел каждого силопередающего узла соединен с соответствующим опорным узлом емкости, а силовводящие узлы, соединенные с опорными узлами, размещены на них с возможностью перемещения и фиксации. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 91 334 (13) U1 (51) МПК C01G 21/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21), (22) Заявка: 2009141568/22, 12.11.2009 (24) Дата начала отсчета срока действия патента: 12.11.2009 (45) Опубликовано: 10.02.2010 (73) Патентообладатель(и): Закрытое акционерное общество "Весоизмерительная компания "Тензо-М" (RU) U 1 9 1 3 3 4 R U Ñòðàíèöà: 1 ru CL U 1 Формула полезной модели Устройство для взвешивания емкости, содержащее опору, опорные узлы, размещенные на емкости, консольные датчики веса, размещенные на опоре, силопередающие узлы, соединяющие с консольными датчиками веса опорные узлы, размещенные на емкости, электронный преобразователь сигналов датчиков, отличающееся тем, что, с целью повышения быстродействия, точности взвешивания и уменьшения габаритных размеров, каждый ...

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Номер записи: 1
01-11-2012 дата публикации

Synthesis of Nanoparticles by Means of Ionic Liquids

Номер: US20120275991A1
Автор: Hechun Lin, Michael Veith, Peter William De Oliveira
Принадлежит: Leibniz Institut fuer Neue Materialien Gemeinnuetzige GmbH

A method for producing nanoscale particles by means of ionic liquids produces highly crystalline particles. The ionic liquids can be easily regenerated.

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Номер записи: 2
29-08-2013 дата публикации

Re-Dispersible Metal Oxide Nanoparticles and Method of Making Same

Номер: US20130220178A1
Автор: Alexander Traut, Alexandra Seeber, Bernadette Landschreiber, Bernd Smarsly, Christoph Wiedmann, Claudia Grote, Cornelia RÖGER-GÖPFERT, Georg Garnweitner, Jan Haetge, Roman Zieba, Till von Graberg, Torsten Brezesinski
Принадлежит: Justus Liebig Universitaet Giessen

The current invention relates to a method of making metal oxide nanoparticles comprising the reaction of—at least one metal oxide precursor (P) containing at least one metal (M) with—at least one monofunctional alcohol (A) wherein the hydroxy group is bound to a secondary, tertiary or alpha-unsaturated carbon atom—in the presence of at least one aliphatic compound (F) according to the formula Y 1 —R 1 —X—R 2 —Y 2 , wherein—R 1 and R 2 each are the same or different and independently selected from aliphatic groups with from 1 to 20 carbon atoms, —Y 1 and Y 2 each are the same or different and independently selected from OH, NH 2 and SH, and —X is selected from the group consisting of chemical bond, —O—, —S—, —NR 3 —, and CR 4 R 5 , wherein R 3 , R 4 and R 5 each are the same or different and represent a hydrogen atom or an aliphatic group with from 1 to 20 carbon atoms which optionally carries functional groups selected from OH, NH 2 and SH. This invention also relates to metal oxide nanoparticles, to a method of making dispersions of said nanoparticles and to dispersions containing them.

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Номер записи: 3
17-10-2013 дата публикации

Conductive Thick Film Paste For Solar Cell Contacts

Номер: US20130269772A1
Автор: Lei Wang, Matthias HÖRTEIS, Weiming Zhang
Принадлежит: Heraeus Precious Metals North America Conshohocken LLC

The present invention relates to an inorganic reaction system used in the manufacture of electroconductive pastes. The inorganic reaction system comprises a lead containing matrix forming composition and a tellurium oxide additive. Preferably the lead containing matrix forming composition is between 5-95 wt. % of the inorganic reaction system, and the tellurium oxide additive is between 5-95 wt. % of the inorganic reaction system. The lead containing matrix forming composition may be a glass frit, and may comprise lead oxide. Another aspect of the present invention relates to an electroconductive paste composition that comprises metallic particles, an inorganic reaction system as previously disclosed, and an organic vehicle. Another aspect of the present invention relates to an organic vehicle that comprises one or more of a binder, a surfactant, a solvent, and a thixatropic agent. Another aspect of the present invention relates to a solar cell printed with an electroconductive paste composition as disclosed, as well as an assembled solar cell module. Another aspect of the present invention relates to a method of producing a solar cell.

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Номер записи: 4
23-01-2014 дата публикации

Recovery of high purity lead oxide from lead acid battery paste

Номер: US20140023574A1
Автор: Steven A. Kinsbursky, W. Novis Smith
Принадлежит: Retriev Technologies Inc

The invention relates to the low temperature recovery of lead oxide (PbO) from lead acid battery paste through the preparation of lead carboxylate from the battery paste and the conversion of the lead carboxylate to PbO.

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Номер записи: 5
22-01-2015 дата публикации

NOVEL PROCESS OF PREPARING NANO METAL AND THE PRODUCTS THEREOF

Номер: US20150024204A1
Автор: Amanchi Aparna, Amanchi Bala Sudhakara Sastry, Amanchi Vamsi Phanindra Koushika, Raghavendra Bhagyaraj Aamanchi Karthik
Принадлежит:

The present invention relates a process of preparing a nanopowder by using a natural source starting material wherein the nano powder is a nano metal or nano alloy or nano metal oxide or nano metal carbide or nano compound or nano composite or nanofluid. The nano product produced by the process has novel properties such as enhanced hardness, antibacterial properties, thermal properties, electrical properties, abrasive resistant, wear resistant, superior frictional properties, sliding wear resistance, enhanced tensile strength, compression strengths, enhanced load bearing capacity and corrosion properties. By virtue of this process the products produced are usable in preparation of thermal fluids, anti-fungal/bacterial/fouling coatings, paints, high strength electrical conductors, high corrosion resistant coatings and alloys, inkjet inks, neutralizing gram positive bacteria, neutralizing gram negative bacteria, motor cycle clutch, rocker arm, solder materials, bearing applications, spring materials, automobile parts, steering wheel joints and coatings, connecting rod, memory enhancing devices, hard disks, pen drives, electronic chips, smart materials, shape memory alloys, add-on materials for composite lamina or laminates of any number. 1. A novel process of preparing metal nano powders using a natural ingredient selected from the group comprising of herbal extracts , plant extracts , water , milk or milk products , comprising the steps ofa. combining the natural ingredient with a metal salt in a metal containerb. allowing the nano powder to form and depositc. obtaining the nano powder2. The process as claimed in claim 1 , wherein the nano powder is a metal nano powder or alloy nano powder.3Curcuma aromatic, Alpiniacalcarta, Indigiferatinctoria, Spilanthusacmella, Pelargonium gravcolens, Mirabilis jalapa, Withanaisomnifera, Bacopamonnuri, Centellaasiastica, Rauvolfia serpentine, Acoruscalamus, Andrographispaniculata, Zingiberofficinale Cissusrepens, Apiumgraveolens, ...

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Номер записи: 6
10-02-2022 дата публикации

Control of the Electrostatic Potential of Nanoparticles

Номер: US20220042911A1
Автор: He Chen, Kim Jeremiah Yoonsung, Lee Andrew, Wang Chen, Weinberg David J., Weiss Emily A.
Принадлежит:

The present technology is directed to the nanoparticles for use as molecular environmental sensors. The nanoparticles comprise a photoluminescence core and a plurality of ligands bound to the core and forming a quencher permeable ligand shell. The ligands comprise a reactive or charged moiety capable of being modulated between a first stand and a second state, and the proportion of ligands in each state determine the permeability of the ligand shell to a photoluminescence quencher. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. An environmental sensor comprising:(a) a photoluminescence quencher and(b) a nanoparticle comprising a photoluminescent core and plurality of charged ligands bound to the core and forming a quencher permeable ligand shell surrounding the corewherein each of the charged ligands comprises a charged moiety capable of being modulated between a first state and a second state and an anchoring group for binding the ligand to the core, andwherein the permeability of the ligand shell is determined by the proportion of the ligands in a first state and a second state.14. The sensor of claim 13 , wherein the first state is a first protonation state and the second state is a second protonation state.15. The sensor of claim 13 , wherein the first state is an acetylated state and the second state is a deacetylated state.16. The sensor of claim 13 , wherein the first state is an ion-paired state and the second state ion-unpaired state.17. A method for environmental monitoring claim 13 , the method comprising: (i) a photoluminescence quencher and', '(ii) a nanoparticle comprising a photoluminescent core and plurality of ligands bound to the core and forming a quencher permeable ligand shell surrounding the core', 'wherein each of the ligands comprises a charged moiety or a reactive moiety capable of being modulated between a first state and a ...

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Номер записи: 7
28-01-2021 дата публикации

Systems and Methods for Separating Radium from Lead, Bismuth, and Thorium

Номер: US20210024365A1
Автор: OHara Matthew J.
Принадлежит: BATTELLE MEMORIAL INSTITUTE

Systems for separating Ra from a mixture comprising at least Ra, Pb, Bi, and Th are provided. The systems can include: a first vessel housing a first media and Th or Bi; a second vessel in fluid communication with the first vessel, the second vessel housing a second media and Pb; and a third vessel in fluid communication with the second vessel, the third vessel housing a third media and Ra, wherein at least one of the first, second, or third medias are different from the other media. 1. A system for separating Ra from a mixture comprising at least Ra , Pb , Bi , and Th , the system comprising:a first vessel housing a first media and either Pb or Bi and/or Th; anda second vessel in fluid communication with the first vessel, the second vessel housing a second media and Ra, wherein the first media is different from the second media.2. The system of wherein the first media is associated with Bi and/or Th and comprises a quaternary amine on a polystyrene divinylbenzene copolymer.3. The system of wherein the second media is associated with Ra and comprises a silica support.4. The system of wherein the first media is associated with Pb and comprises 18-crown-6 and 1-octanol on Amberchrom CG-71 polymer support.5. The system of wherein the second media is associated with Ra comprises a on silica support.6. The system of wherein the first media size is less than 100 μm.7. The system of wherein the second media size is greater than 100 μm.8. A system for separating Ra from a mixture comprising at least Ra claim 1 , Pb claim 1 , Bi claim 1 , and Th claim 1 , the system comprising:a first vessel housing a first media and Th and/or Bi; anda second vessel in fluid communication with the first vessel, the second vessel housing a first media and Pb, wherein the first media is different from the second media.9. The system of wherein the first vessel is in fluid communication with raw material supply.10. The system of wherein the first vessel is in fluid communication with a wash ...

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Номер записи: 8
28-01-2021 дата публикации

PEROVSKITE POLYMER COMPOSITE

Номер: US20210024765A1
Автор: Li Beiye, Ng Jun De Andrew, Tan Zhi Kuang, Wong Ying-Chieh
Принадлежит: NATIONAL UNIVERSITY OF SINGAPORE

Disclosed herein is a polymeric film, the film comprising a polymeric matrix material, a plurality of perovskite nanocrystals and/or aggregates of perovskite nanocrystals dispersed throughout the polymeric matrix material. There is also disclosed a perovskite polymer resin composition, a perovskite-polymer resin composition, a perovskite ink and a method of forming a luminescent film using any one of the compositions or ink. Preferably, the perovskite material is a lead halide perovskite containing a cation selected from Cs, an alkylammonium ion, or a formamidinium ion. The polymeric matrix is preferably formed from monomers comprising a vinyl or an acrylate group. 2. The film according to claim 1 , wherein the polymeric matrix material is formed from monomers comprising a vinyl group.3. The film according to claim 2 , wherein the polymeric matrix material further comprises crosslinking groups.4. The film according to claim 3 , wherein the crosslinking groups are derived from a crosslinking agent comprising from two to five vinyl groups.5. The film according to claim 1 , wherein the film comprises one or both of:(a) from 0.05 to 50 wt % of the plurality of perovskite particles and/or perovskite aggregates and from 50 to 99.95 wt % of the polymeric matrix material; and(b) a weight to weight ratio of perovskite particles to polymeric matrix material of from 0.0002:1 to 1:1, such as from 0.0005:1 to 0.5:1, such as from 0.001:1 to 0.1:1.6. (canceled)7. The film according to claim 1 , where one or more of the following apply:each nanocrystal has a length of from 2 to 100 nm;each aggregate of perovskite nanocrystals has a diameter of from 50 to 5,000 nm; andeach perovskite nanocrystal and/or aggregate of perovskite nanocrystals is separated from each other perovskite nanocrystal and/or aggregate of perovskite nanocrystals by an average distance of from 20 to 2000 nm.8. The film according to wherein the crosslinked polymeric matrix material comprises a wt:wt ratio of ...

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Номер записи: 9
28-01-2021 дата публикации

HALIDE ABX3 PEROVSKITE PARTICLES AND THEIR APPLICATION IN CONTROLLING PHOTO-FLUX

Номер: US20210026214A1
Автор: Li Yanan, Liang Bin, Xiao Shuyong, Zhang Dawei, ZHANG Yuzhe, Zhao Shiyong
Принадлежит: ZHEJIANG JINGYI NEW MATERIAL TECHNOLOGY CO. LTD

A light valve containing ABXperovskite particles () suspended in a liquid suspension () that can control light transmittance is provided. The preferable ABXperovskite particles () are halide ABXperovskite particles wherein A is at least one of Cs, CHNH, and Rb, B is at least one of Pb, Ge, and Sn, and X is at least one of Cl, Br, and I. Use of the light valve in the manufacture of a light control device and a method of controlling light transmittance by using the light valve are also provided. 1. (canceled)2. A light valve , comprising a first layer of a transparent conductive substrate; an active layer containing ABXperovskite particles suspended in a liquid suspension; and a second layer of a transparent conductive substrate , wherein the ABXperovskite particles are halide ABXperovskite particles , and wherein A is at least one of Cs , CHNH , and Rb; B is at least one of Pb , Ge , and Sn; and X is at least one of Cl , Br , and I.3. The light valve as recited in claim 2 , wherein A is at least one of Cs and CHNH; B is Pb; and X is at least one of Br and I.46-. (canceled)7. The light valve as recited in claim 1 , wherein the halide perovskite particles are uniformly dispersed in the liquid suspension.8. The light valve as recited in claim 7 , wherein the liquid suspension is capable of maintaining the suspended ABXperovskite particles in gravitational equilibrium.913-. (canceled) This application claims the priority of U.S. patent application Ser. No. 16/033,556, filed on Jul. 12, 2018. and titled with “Halide ABXperovskite particles and their application in controlling photo-flux”, and the disclosures of which are hereby incorporated by reference.The present invention is related to a light valve containing perovskite particles especially ABXperovskite particles. The present invention also provides a new use of the light valve and a method of controlling light transmittance by using the light valve.A light valve is a device which can electronically control the light ...

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Номер записи: 10
15-02-2018 дата публикации

SYSTEM, EMANATION GENERATOR, AND PROCESS FOR PRODUCTION OF HIGH-PURITY THERAPEUTIC RADIOISOTOPES

Номер: US20180047474A1
Автор: OHara Matthew J.
Принадлежит: BATTELLE MEMORIAL INSTITUTE

An isotope production system, emanation generator, and process are disclosed for production of high-purity radioisotopes. In one implementation example, high-purity Pb-212 and/or Bi-212 isotopes are produced suitable for therapeutic applications. In one embodiment the process includes transporting gaseous radon-220 from a radium-224 bearing generator which provides gas-phase separation of the Rn-220 from the Ra-224 in the generator. Subsequent decay of the captured Rn-220 accumulates high-purity Pb-212 and/or Bi-212 isotopes suitable for direct therapeutic applications. Other high-purity product isotopes may also be prepared. 1. An emanation system for production of ultrapure radioisotopes , comprising:an emanation device having an emanation source comprising a source isotope therein that emanates a radioactive gas therefrom; anda collection device configured to collect the radioactive gas retaining same for a time sufficient to yield one or more high purity radioactive daughter isotopes therein.2. The system of wherein the source isotope is selected from Thorium-228 and/or Radium-224; Thorium-227 and/or Radium-223; or Thorium-230 and/or Radium-226.3. The system of wherein the radioactive gas is selected from Radon-220; Radon-219; and Radon-222.4. The system of wherein the radioactive gas is a radioactive noble gas.5. The system of wherein the source isotope is disposed on a particle surface or a permeable support.6. The system of wherein the source isotope is disposed on magnetic or paramagnetic metal oxide particles.7. The system of wherein the source isotope is disposed on a gas-permeable support.8. The system of wherein the collection device includes a cooling device configured to cool the radioactive gas emanated from the emanation device.9. The system of wherein the collection device includes a soluble salt configured as a thin film or a packed salt claim 1 , or a lipophilic liquid configured as a thin film or a thin film coating on a solid support to extract ...

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Номер записи: 11
03-03-2022 дата публикации

STABILIZED PEROVSKITE QUANTUM DOT MATERIAL

Номер: US20220064524A1
Автор: BAKR Osman Mohammed, LUTFULLIN Marat, SINATRA Lutfan
Принадлежит:

Described herein are materials comprising (1) a monomer or a polymer; (2) perovskite quantum dots interspersed in the monomer or the polymer, each of the perovskite quantum dots independently having the formula: 2. The material of claim 1 , wherein the material comprises the halide-based additive claim 1 , wherein the halide-based additive comprises a metal halide salt claim 1 , an organic halide salt claim 1 , or a combination thereof.38-. (canceled)9. The material of claim 2 , wherein the metal halide salt comprises MgBr claim 2 , CaBr claim 2 , AlBr claim 2 , ZnBr claim 2 , or a combination thereof.10. The material of claim 2 , wherein the metal halide salt comprises LiBr claim 2 , NaBr claim 2 , KBr claim 2 , RbBr claim 2 , CsBr claim 2 , or a combination thereof.1112-. (canceled)13. The material of claim 2 , wherein the organic halide salt comprises an ammonium salt claim 2 , a sulfonium salt claim 2 , a phosphonium salt claim 2 , or a combination thereof.14. (canceled)15. The material of claim 13 , wherein the ammonium salt comprises Tetraoctylammonium bromide claim 13 , Didodecyldimethylammonium bromide claim 13 , Tetrabutylammonium bromide claim 13 , Tetraoctylammonium bromide claim 13 , Hexadecyltrimethylammonium bromide claim 13 , Trimethyloctadecylammonium bromide claim 13 , Myristyltrimethylammonium bromide claim 13 , or a combination thereof claim 13 , and wherein the sulfonium salt comprises dimethyl(octyl)sulfonium bromide; (Ethoxycarbonylmethyl)dimethylsulfonium bromide; Sulfonium claim 13 , dimethyl(2-phenylethyl)- claim 13 , bromide; Benzyl(diethyl)sulfonium bromide; Sulfonium claim 13 , dimethyl[1-(4-methylphenyl)ethyl]- claim 13 , bromide; Sulfonium claim 13 , [1-(dimethylamino)-4-pentenylidene]-2-propenyl- claim 13 , bromide; Sulfonium claim 13 , [1-(dimethylamino)-3-methyl-4-pentenylidene]-2-propenyl- claim 13 , bromide; or a combination thereof.1618-. (canceled)19. The material of claim 13 , wherein:the phosphonium salt is a phosphonium ...

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Номер записи: 12
13-02-2020 дата публикации

A PROCESS FOR THE SYNTHESIS OF AIR STABLE METAL SULPHIDE QUANTUM DOTS

Номер: US20200048543A1
Автор: BERA Abhjit, PRASAD Bhagavatula Lakshmi Vara
Принадлежит:

The present invention discloses a process for the preparation of metal sulphide quantum dots by using a very low cost sulphur precursor as a sulphur source. The metal sulphide quantum dots finds application in optical devices selected from photovoltaic cells, photodetectors and light-emission devices. 1. A process for the preparation of metal sulphide QDs comprising the steps of:a) reacting a metal salt with a ligand in a solvent followed by heating at a temperature ranging from 90 to 95° C. under a vacuum for a period ranging from 1 to 2 h to afford a metal oleate or a metal amine solution;b) preparing a dithiocarbamic acid solution by mixing octyl dithiocarbamic acid with a ligand and a solvent to form a mixture followed by injecting said mixture to the metal oleate or metal amine solution of step (a) to obtain a dithiocarbamic solution;c) injecting acetone to the dithiocarbamic solution of step (b) as an anti-solvent to obtain a precipitate, followed by collecting particles of precipitate by centrifugation to obtain metal sulfide QDs; andd) dispersing said metal sulfide QDs in a non-polar solvent to obtain colloidal quantum dots.2. The process as claimed in claim 1 , wherein said metal is selected from the group consisting of Lead (Pb) claim 1 , Cadmium (Cd) claim 1 , Manganese (Mn) claim 1 , Zinc (Zn) claim 1 , Copper (Cu) and Tin (Sn).3. The process as claimed in claim 1 , wherein said salt of the metal is selected from the group consisting of an oxide salt claim 1 , an acetate salt and a halide salts.4. The process as claimed in claim 1 , wherein said ligand is selected from the group consisting of oleic acid and oleyl amine.5. The process as claimed in claim 1 , wherein said solvent of step (a) and (b) is 1-octadecene.6. The process as claimed in claim 1 , wherein said non-polar solvent of step (d) is selected from tie group consisting of toluene claim 1 , chloroform claim 1 , hexane or octane.7. The process as claimed in claim 1 , wherein said metal sulfides ...

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Номер записи: 13
13-02-2020 дата публикации

MIXED ORGANIC-INORGANIC PEROVSKITE FORMULATIONS

Номер: US20200051752A1
Автор: BEAUMONT Nicola, Crossland Edward James William, KAMINO Brett Akira, LANGLEY Benjamin
Принадлежит:

A formulation for use in the preferential formation of thin films of a perovskite material AMXwith a certain required crystalline structure, wherein said formulation comprises two or more compounds which between them comprise one or more first organic cations A; one or more metal cations M; one or more second cations A′; one or more first anions X and one or more second anions X′. 152-. (canceled)53. A method of producing a photovoltaic device comprising a photoactive material , which photoactive material comprises a perovskite of general formula (I):{'br': None, 'sup': '3', 'AMX\u2003\u2003(I)'}wherein A is one or more monovalent cations, M is one or more divalent metal cations, and X is one or more halide anions, the method comprising: the one or more monovalent cations A;', 'the one or more divalent metal cations M;', 'the one or more halide anions X;', 'one or more further monovalent cations A′; and', 'one or more further halide anions X′;', {'sub': '3', 'wherein the one or more further monovalent cations A′ and the one or more further halide anions X′ are selected to form one or more A′X′-containing compounds which are able to be fully separated from the AMXmaterial at a temperature of less than 200° C.;'}], 'forming a precursor solution by dissolving in a solvent system the formulation comprising two or more compounds which between them comprisedisposing/depositing a layer of the precursor solution; andremoving at a temperature of less than 200° C. the solvent system and the more volatile A′X′ compounds to produce a solid layer of the perovskite material.54. A method according to claim 53 , wherein the layer of the precursor solution is disposed on a first region claim 53 , the first region comprising any of:an n-type region comprising at least one n-type layer; anda p-type region comprising at least one p-type layer.55. A method according to claim 54 , and further comprising:disposing a second region above the solid layer of the perovskite material.56. A ...

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Номер записи: 14
04-03-2021 дата публикации

COLOR FILTER AND DISPLAY DEVICE

Номер: US20210063809A1
Автор: GRECO Tonino, ZIMMERMANN Klaus
Принадлежит: SONY CORPORATION

The present disclosure pertains to a color filter for a display device, which has at least one color filter element for generating a predefined color in response to incident light, wherein the at least one color filter element includes a Perovskite material. 1. A color filter for a display device , comprising at least one color filter element for generating a predefined color in response to incident light , wherein the at least one color filter element includes a Perovskite material.2. The color filter of claim 1 , wherein the at least one color filter element is a blue light spectrum color filter.3. The color filter of claim 2 , wherein the Perovskite material includes at least one of the following: CsPbClBr claim 2 , CHNHCsPbClBr claim 2 , CHNHNHPbClBr.4. The color filter of claim 1 , wherein the at least one color filter element is a green light spectrum color filter.5. The color filter of claim 4 , wherein the Perovskite material includes at least one of the following: CsPbBr claim 4 , CHNHCsPbBr claim 4 , or CsRbPbBr.6. The color filter of claim 1 , wherein the at least one color filter element is a red light spectrum color filter.7. The color filter of claim 6 , wherein the Perovskite material includes at least one of the following: CsPbI claim 6 , CHNHCsPbI claim 6 , CHNHSnBrI claim 6 , CsSnBrI.8. The color filter of claim 1 , wherein the Perovskite material is based on the formula ABX claim 1 , wherein the A is an inorganic alkali or an organic alkyl ammonium claim 1 , B is a metal or a rear earth claim 1 , and X is of the group of halogens.9. The color filter of claim 8 , wherein A is at least one of K claim 8 , Rb claim 8 , Cs claim 8 , CHNH claim 8 , CHCHNH claim 8 , CHNH claim 8 , B is at least one of T claim 8 , Zr claim 8 , Hf claim 8 , Sn claim 8 , Ce claim 8 , Tc claim 8 , Al claim 8 , SC claim 8 , V claim 8 , Cr claim 8 , Mn claim 8 , Fe claim 8 , Co claim 8 , Ga claim 8 , Mg claim 8 , Ni claim 8 , Cu claim 8 , Zn claim 8 , Nb claim 8 , and X is at ...

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Номер записи: 15
28-02-2019 дата публикации

BANDGAP-TUNABLE PEROVSKITE MATERIALS AND METHODS OF MAKING THE SAME

Номер: US20190062175A1
Автор: Gao Hanwei, Ling Yichuan, Ma Biwu, Wang Xi
Принадлежит:

Bandgap-tunable perovskite compositions are provided having the formula CsPb(A)B), wherein A and B are each a halogen. The mixed halide perovskite composition has a morphology which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition. For example, the perovskite may be in the form of nanocrystals embedded in a non-perovskite matrix, which, for example, may have the formula CsPb(A)B)6, wherein A and B are each a halogen. Solar cells and light-emitting diodes comprising the mixed perovskite compositions are also provided. 1. A mixed halide perovskite composition comprising:{'sub': x', 'y', '3, 'a perovskite having the formula CsPb(A)B), wherein A and B are each a halogen,'}wherein the composition has a morphology which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition.2. The composition of claim 1 , wherein the perovskite is in the form of nanocrystals embedded in a non-perovskite matrix.3. The composition of claim 2 , wherein the non-perovskite matrix has the formula CsPb(A)B) claim 2 , wherein A and B are each a halogen.4. The composition of claim 1 , wherein A and B are selected from iodine and bromine.51. The composition of claim 1 , wherein y=x− claim 1 , x is 0 and y is 1 claim 1 , x is ⅓ and y is ⅔ claim 1 , or x is 1 and y is 0.6. The composition of claim 1 , which comprises a Cs(I)layer and a Pb(Br)layer.7. The composition of claim 1 , which comprises a Cs(Br)layer and a Pb(I)layer.8. The composition of claim 1 , which comprises a CsPb(IBr)layer.9. The composition of claim 1 , which has a normalized photoluminescence of from about 500 nm to about 650 nm.10. The composition of claim 1 , which has a UV-vis absorption peak between from about 225 nm to about 600 nm.11. A light-emitting diode comprising:an electron injection layer;a hole injection layer;a metal electrode adjacent to the electron injection layer;a transparent electrode adjacent to the hole injection ...

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Номер записи: 16
17-03-2022 дата публикации

Recycling of lead-containing waste

Номер: US20220081315A1
Автор: Athan Lucian FOX, Marcel YIAO, Ramachandran Vasant Kumar, Rob LIU, Vimalnath SELVARAJ
Принадлежит: Aurelius Environmental Ltd, CAMBRIDGE ENTERPRISE LTD, Ever Resource Ltd

A method for recycling lead-containing waste comprises: (a) dissolving the lead-containing waste in an aqueous solution of a first acid to form a solution of a first lead salt; (b) adding a second acid to the solution of the first lead salt to form a lead-depleted solution and a precipitate of a second lead salt; and (c) converting the precipitate of the second lead salt into leady oxide, wherein the first lead salt has a higher solubility in water than the second lead salt. The method may be used for recycling spent lead-acid battery paste.

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Номер записи: 17
17-03-2022 дата публикации

Electronic element with nanomaterial and manufacturing method thereof

Номер: US20220081613A1
Автор: Hyekyoung CHOI, Sohee Jeong, Youngsik Kim
Принадлежит: Sungkyunkwan University Research and Business Foundation

A nanomaterial includes quantum dots having a crystal structure, wherein the quantum dots include an exposed surface in a specific direction, and the exposed surface has a ligand bound thereto.

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Номер записи: 18
15-03-2018 дата публикации

ACOUSTIC WAVE H2S SENSOR COMPRISING A POLYMER FILM COMPRISING CARBOXYLATE FUNCTIONAL GROUPS AND LEAD OR ZINC CATIONS AND MANUFACTURING PROCESS

Номер: US20180071780A1
Автор: CHERIOUX Frédéric, FRIEDT Jean-Michel, GEGOT François, LAMARE Simon
Принадлежит:

An HS sensor comprising at least one acoustic wave transducer and a film comprising a polymer matrix comprises carboxylate functional groups and lead or zinc cations. Processes for the manufacture of the sensor are also provided. 1. An HS sensor , comprising at least one acoustic wave transducer and a film comprising a polymer matrix comprising carboxylate functional groups and lead or zinc cations.2. The sensor according to claim 1 , comprising an antenna which makes it possible to remotely interrogate the said sensor.3. The sensor according to claim 1 , wherein the film exhibits a thickness of between about a hundred nanometres and a few microns.7. The sensor according to claim 1 , wherein the film exhibits a thickness of between 1 and 5% of the acoustic wavelength.8. The sensor according to claim 7 , wherein the film exhibits a thickness of between 250 nm and 5 μm.9. The sensor according to claim 1 , wherein the transducer is a surface acoustic wave transducer.10. The sensor according to claim 9 , comprising a delay line comprising at least one surface acoustic wave transducer and a mirror.11. The sensor according to claim 9 , comprising a transducer positioned between two mirrors claim 9 , the said sensitive layer being positioned between the said transducer and one of the said mirrors.12. The sensor according to claim 1 , wherein the transducer is a volume acoustic wave or Lamb acoustic wave transducer.13. The sensor according to claim 1 , wherein the transducer comprises a substrate made of lithium niobate or made of lithium tantalate.17. An HS detection device comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a sensor according to ;'}radiofrequency interrogation means;means for detecting the response of the said sensor.18. The device according to claim 17 , comprising means for analysis of the speed or of the insertion losses of the acoustic wave in order to identify the presence of the compound HS. This application claims priority to foreign ...

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Номер записи: 19
05-03-2020 дата публикации

Mixture of basic lead sulfates

Номер: US20200075935A1
Автор: George E. Mayer
Принадлежит: Individual

A microporous lead-containing solid material is produced, which can serve as a carrier for desired materials into a reaction for various desired purposes. For example, if the microporous solid is impregnated with borax it tends to inhibit the growth of unduly large crystals of tetrabasic lead, which is useful in producing batteries having improved functional qualities.

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Номер записи: 20
31-03-2022 дата публикации

LIGHT-EMITTING MATERIAL INCLUDING LIGHT-EMITTING COMPOUND, LIGHT EMITTING DEVICE INCLUDING LIGHT-EMITTING MATERIAL, METHOD OF PREPARING LIGHT-EMITTING MATERIAL, AND METHOD OF PREPARING LIGHT-EMITTING COMPOUND

Номер: US20220098221A1
Автор: Kim Yongchul
Принадлежит:

A light-emitting material including aminosiloxane and a light-emitting compound represented by Formula 1, a light-emitting device including the light-emitting material, a method of preparing the light-emitting material, and a method of preparing the light-emitting compound represented by Formula 1: 1. A light-emitting material comprising aminosiloxane and a light-emitting compound represented by Formula 1:{'br': None, 'sup': 1', '1', '1, 'sub': '3', 'ABX\u2003\u2003Formula 1'}wherein, in Formula 1,{'sup': '1', 'Ais an alkali metal,'}{'sup': '1', 'Bis Pb, Sn, or any combination thereof, and'}{'sup': '1', 'Xis a halogen.'}2. The light-emitting material of claim 1 , wherein Ais Cs claim 1 , Bis Pb claim 1 , and Xis Cl claim 1 , Br claim 1 , I claim 1 , or any combination thereof.3. The light-emitting material of claim 1 , wherein the light-emitting compound represented by Formula 1 comprises CsPbBr claim 1 , CsPbBrCl claim 1 , wherein x is a real number greater than 0 and less than 3 claim 1 , CsPbCl claim 1 , or any combination thereof.5. The light-emitting material of claim 1 , wherein the light-emitting material further comprises a dopant represented by Formula 3:{'br': None, 'sup': 1', '1, 'CX\u2003\u2003Formula 3'}wherein, in Formula 3,{'sup': '1', 'Cis H, methylammonium (MA), formamidinium (FA), an alkali metal, or any combination thereof, and'}{'sup': '1', 'Xis a halogen.'}6. The light-emitting material of claim 1 , wherein the light-emitting material further comprises amino alkoxysilane.7. A light-emitting device comprising:a first electrode and a second electrode each having a surface opposite the other; andan emission layer positioned between the first electrode and the second electrode,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the emission layer comprises the light-emitting material of .'}8. The light-emitting device of claim 7 , further comprising a hole transport region between the first electrode and the emission layer claim 7 , an ...

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Номер записи: 21
02-04-2015 дата публикации

Crystals of semiconductor material having a tuned band gap energy and method for preparation thereof

Номер: US20150090942A1
Автор: Anastasia BRIF, Boaz Pokroy
Принадлежит: Technion Research and Development Foundation Ltd

The present invention provides a semiconductor crystal comprising a semiconductor material having a tuned band gap energy, and methods for preparation thereof. More particularly, the invention provides a semiconductor crystal comprising a semiconductor material and amino acid molecules, peptides, or a combination thereof, incorporated within the crystal lattice, wherein the amino acid molecules, peptides, or combination thereof tune the band gap energy of the semiconductor material.

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Номер записи: 22
31-03-2022 дата публикации

MANUFACTURING METHOD FOR SEMICONDUCTOR FILM, PHOTOELECTRIC CONVERSION ELEMENT, IMAGE SENSOR, AND SEMICONDUCTOR FILM

Номер: US20220102420A1
Автор: MIYATA Tetsushi, ONO Masashi, TAKATA Masahiro
Принадлежит: FUJIFILM Corporation

A semiconductor film contains aggregates of semiconductor quantum dots containing a metal atom and a ligand that is coordinated to the semiconductor quantum dot, where the ligand contains a first ligand that is an inorganic halide and a second ligand that is represented by any one of Formulae (A) to (C). Xand Xare separated by Lby 1 or 2 atoms, Xand X, and Xand Xare respectively independently separated by Land Lby 1 or 2 atoms, and Xand X, Xand X, and Xand Xare respectively independently separated by L, L, or Lby 1 or 2 atoms. 2. The semiconductor film according to claim 1 ,wherein the semiconductor quantum dot contains a Pb atom.3. The semiconductor film according to claim 1 ,wherein the first ligand contains at least one selected from a Group 12 element or a Group 13 element.4. The semiconductor film according to claim 1 ,wherein the first ligand contains a Zn atom.5. The semiconductor film according to claim 1 ,wherein the first ligand contains an iodine atom.6. The semiconductor film according to claim 1 ,wherein the second ligand is at least one selected from thioglycolic acid, 2-aminoethanol, 2-aminoethanethiol, 2-mercaptoethanol, diethylenetriamine, tris(2-aminoethyl)amine, (aminomethyl)phosphonic acid, or derivatives thereof.7. The semiconductor film according to claim 1 ,wherein the semiconductor film contains two or more kinds of the first ligand.8. The semiconductor film according to claim 1 ,wherein the semiconductor film contains two or more kinds of the second ligand.9. The semiconductor film according to claim 1 ,wherein the semiconductor film further contains a ligand other than the first ligand and the second ligand.10. A photoelectric conversion element comprising the semiconductor film according to .11. The photoelectric conversion element according to claim 10 ,wherein the photoelectric conversion element is a photodiode-type photodetector element.12. An image sensor comprising the photoelectric conversion element according to .13. The image ...

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Номер записи: 23
31-03-2022 дата публикации

DEFECT SUPPRESSED METAL HALIDE PEROVSKITE LIGHT-EMITTING MATERIAL AND LIGHT-EMITTING DIODE COMPRISING THE SAME

Номер: US20220102660A1
Автор: HEO Jung Min, Kim Joo Sung, Kim Sungjin, Kim Young-Hoon, Lee Tae-Woo, Park Jin Woo
Принадлежит:

Disclosed are a metal halide perovskite light-emitting material with controlled defects and wavelength converting body having the same, and light-emitting device. Monvalent organic cation (A) contained in the perovskite nanocrystal can stabilize the perovskite nanocrystal and suppress the generation of defects in the crystal due to the entropy effect. Remnant Acations not included in the perovskite nanocrystal form a structure surrounding the perovskite nanocrystal particles, and passivate defects generated on the surface of the perovskite nanocrystal particles. Photoluminescence quantum efficiency, photoluminescence lifetime, and stability are improved through passivation of defects, and the metal halide perovskite light-emitting material can be effectively used in a light-emitting layer or a wavelength conversion layer of a light-emitting device. 2. The perovskite light-emitting material of claim 1 , wherein the perovskite light-emitting material is a colloidal nanoparticle dispersed in a solvent or polycrystalline bulk thin film.3. The perovskite light-emitting material of claim 1 , wherein the first monovalent cations is at least one selected from the group of methylammonium claim 1 , formamidinium claim 1 , Cs and Rb capable of making the tolerance factor as 1.01 or less claim 1 , or combination thereof claim 1 ,wherein the second monovalent cations is at least one selected from the group of ethylammonium, guanidinium, tert-butylammonium, diethylammonium, dimethylammonium, ethane-1,2,-diammonium, imidazolium, n-propylammonium, iso-propylammonium and pyrrolidinium capable of making the tolerance factor equal to or greater than 1.01 and less than 3.4. The perovskite light-emitting material of claim 1 , wherein a ratio of the second monovalent cation among total monovalent cations of the A site is 5% to 60% relative to the total amount of the mixture of the first monovalent cation and the second monovalent cation.5. The perovskite light-emitting material of claim ...

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Номер записи: 24
05-05-2022 дата публикации

Compound, Composition, Film, Layered Structure, Light-Emitting Device, and Display

Номер: US20220135421A1
Автор: Naito Shota, Sugiuchi Mizuho
Принадлежит: Sumitomo Chemical Company, Limited

A compound has a perovskite type crystal structure containing A which is a monovalent cation, B which is a metal ion, and X which is a halide ion as components. The perovskite type crystal structure has a unit cell volume of 0.2000 nmor more and 0.2150 nmor less, an ionic radius of B of 0.7 Å or more and 1.4 Å or less, and an ionic radius of X of 0.5 Å or more and 2.5 Å or less.

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Номер записи: 25
12-05-2022 дата публикации

QUANTUM DOTS AND PROCESSES FOR PREPARATION THEREOF

Номер: US20220145171A1
Автор: Bai Yang, HAO Mengmeng, WANG Lianzhou
Принадлежит:

Disclosed are processes for preparing hybrid perovskite quantum dots and the resulting hybrid perovskite quantum dots and uses thereof. Such quantum dots are useful as semiconductors in devices such as solar cells and light-emitting diodes. 1. A process for preparing hybrid perovskite quantum dots , the process comprising the steps of:a) preparing first quantum dots having a first composition and a first surface ligand at a first target amount;b) preparing second quantum dots having a second composition and a second surface ligand at a second target amount; and,c) preparing a solution comprising a ratio of the first and second quantum dots so that the first and second quantum dots undergo ligand-mediated cation exchange to form hybrid quantum dots having a composition determined by the first and second compositions and the ratio.2. The process according to claim 1 , wherein the first quantum dots are synthesised with a first surface ligand at a first amount and are at least partially purified to reduce the amount of the first surface ligand to the first target amount.3. The process according to or claim 1 , wherein the first composition and the second composition independently comprise a compound of formula I:{'br': None, 'sub': '3', 'AMX\u2003\u2003(I)'}wherein:{'sub': 3', '3', '2', '2, 'sup': +', '+, 'A is an alkali metal cation, CHNH or NHCH═NH;'}M is a metal cation; andeach X is independently a halide;wherein the second composition is a composition other than the first composition.4. The process according to claim 3 , wherein a molar ratio of a compound of formula I in the first quantum dots to the first surface ligand at the first target amount is in the range of from 1:2 to 1:25.5. The process according to claim 4 , wherein the molar ratio is in the range of from 1:2.5 to 1:5.5.6. The process according to any one of to claim 4 , wherein a molar ratio of a compound of formula I in the first quantum dots to the first surface ligand at the first amount is in the ...

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Номер записи: 26
08-04-2021 дата публикации

ABX3 perovskite particles and their application in reverse mode controlling photo-flux

Номер: US20210103197A1
Автор: Li Yanan, Xiao Shuyong, Zhang Dawei, Zhao Shiyong
Принадлежит: ZHEJIANG JINGYI NEW MATERIAL TECHNOLOGY CO., LTD

The present invention provides a reverse mode light valve containing ABXperovskite particles; more specifically is related to a light valve containing halide ABXperovskite particles that can control light transmittance. This light control valve has the property of higher light transmittance when the power is turned off (OFF state) and lower light transmittance when the power is turned on (ON state). In the halide ABXperovskite particles, A is at least one of Cs, CH3NH3, and Rb, B is at least one of Pb, Ge, and Sn, and X is at least one of Cl, Br, and I. This halide ABXperovskite particles were suspended in a liquid suspension to make a light valve with a light transmittance control. This light valve performs well and opens up a completely new field of application for ABXperovskite materials. 1. A reverse mode light valve , comprising of a first layer of a transparent conductive substrate; an active layer containing an ABXperovskite particles are suspended in a liquid suspension; and a second layer of transparent conductive substrate.2. The reverse mode light valve as recited in claim 1 , wherein the said the reverse mode means the light control valve has the property of higher light transmittance when the power is turned off (OFF state) and lower light transmittance when the power is turned on (ON state).3. The reverse mode light valve as recited in claim 1 , wherein the said ABXperovskite particles are halide ABXperovskite particles claim 1 , and wherein A is at least one of Cs claim 1 , CH3NH+ claim 1 , and Rb claim 1 , B is at least one of Pb claim 1 , Ge claim 1 , and Sn claim 1 , and X is at least one of Cl claim 1 , Br claim 1 , and I.4. The halide ABXperovskite particles as recited in claim 3 , wherein the said ABXperovskite particles claim 3 , and wherein A is at least one of Cs and CH3NH claim 3 , B is Pb claim 3 , X is at least one of Br and I.5. The ABXperovskite particles as recited in claim 1 , wherein the said ABXperovskite particles have a non- ...

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Номер записи: 27
02-06-2022 дата публикации

PEROVSKITE LIGHT-EMITTING DEVICE HAVING PASSIVATION LAYER AND FABRICATION METHOD THEREOF

Номер: US20220169526A1
Автор: Kim Sungjin, Kim Young-Hoon, Lee Tae-Woo, Park Jin Woo
Принадлежит:

Disclosed is a perovskite light-emitting device with reduced defects in a perovskite thin film. The passivation layer in the perovskite light-emitting device is formed on the upper part of the perovskite thin film to eliminate defects in the perovskite nanocrystalline particles and resolve charge imbalance in the device, thereby improving maximum efficiency and maximum luminance of the light-emitting device. 2. The perovskite light-emitting device of claim 1 ,wherein the passivation layer further includes the organic semiconductor or polymer, andwherein the organic semiconductor includes at least one selected from Tris-(8-hydroxyquinoline) aluminum (Alq3), 3-(4-Biphenylyl)-4-phenyl-5-tert-butylphenyl-1,2,4-triazole (TAZ), Tris-Phenylquinoxalines 1,3,5-tris[(3-phenyl-6-trifluoromethyl) quinoxaline-2-yl] benzene (TPQ1), Tris-Phenylquinoxalines 1,3,5-tris [{3-(4-tert-butyl)-6-trifluoromethyl} quinoxaline-2-yl] benzene (TPQ2), 4,7-diphenyl-1,10-phenanthroline (Bphen), 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 10-benzo[h]quinolinol-beryllium (BeBq2), (Bis(8-hydroxy-2-methylquinoline)-(4-phenylphenoxy)aluminum (BAlq), 4,4′-N,N′-Dicabazol-biphenyl (CBP), 9,10-di(naphthalene-2-yl)anthracene (AND), 4,4′,4″-Tris(N-carbazolyl)triphenylamine (TCTA), 1,3,5-tris(N-phenylbenzimidazole-2-yl)benzene (TPBI), 3-tert-butyl-9,10-di(naphtha-2-il)anthracene (TBADN), (1,3,5-triazine-2,4,6-triyl)tris (benzene-3,1-dyle)tris(diphenylphosphine oxide), 2,4,6-tris [3-diphenylphosphinyl]phenyl-1,3,5-triazine (PO-T2T), Tris(2,4,6-trimethyl-3-(pyridin-3-yl)phenyl)borane (3TPYMB), 4,6-bis(3,5-di(pyridin-3-yl)phenyl)-2-methylpyrimidine (B3PYMPM), and 2-[4-(9,10-di-naphthalen-2-yl-anthracen-2-yl)-phenyl]-1-phenyl-1H-benzoimidazole (ZADN), andwherein the polymer includes at least one selected from poly (Methyl Methacrylate) (PMMA), poly (ethyl methacrylate) (PEMA), poly (butyl methacrylate (PBMA), poly (2-ethyl-2-oxazoline (PEOXA), polyacrylamide (PAM), and polyethylene oxide (PEO).4. The ...

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Номер записи: 28
02-06-2022 дата публикации

NANOCRYSTALS

Номер: US20220169527A1
Автор: Li Jie, Pang Hao
Принадлежит: QUANTUM SCIENCE LTD

The present invention provides the use of a lead (IV) containing compound to prepare a lead chalcogenide nanocrystal and a method for producing broadband lead chalcogenide nanocrystals in a low cost, size-controllable and scalable method, the method comprising contacting a lead (IV) containing compound with an organic acid and a chalcogen-containing reagent. 1. The use of a lead (IV) containing compound to prepare a lead chalcogenide nanocrystal.2. The use according to claim 1 , wherein the lead (IV) containing compound comprises lead (II claim 1 , IV) oxide.3. The use according to claim 1 , wherein the lead chalcogenide nanocrystal exhibits absorption in the range of 500 to 4500 nm claim 1 , preferably 500 to 2400 nm.4. A method for producing a lead chalcogenide nanocrystal claim 1 , the method comprising contacting a lead (IV) containing compound with an organic acid and a chalcogen-containing reagent.5. A method according to claim 4 , wherein the lead (IV) containing compound comprises lead (II claim 4 , IV) oxide.6. A method according to claim 4 , wherein the lead (IV) containing compound is contacted with the organic acid to produce a lead salt and the lead salt is contacted with the chalcogen-containing reagent.7. A method according to claim 4 , which is conducted in the presence of a solvent claim 4 , preferably wherein the solvent comprises a non-polar solvent claim 4 , such as octadecene claim 4 , or a polar solvent claim 4 , such as DMF claim 4 , NMP claim 4 , DMAc claim 4 , THF claim 4 , acetone.8. A method according to claim 4 , which comprises:forming a first solution of the lead (IV) containing compound and organic acid in a first solvent;forming a second solution of the chalcogen-containing reagent in a second solvent;heating the first solution to a first temperature in the range of from 120 to 250° C. and maintaining the first solution at the first temperature for a predetermined length of time;reducing the temperature of the first solution to a ...

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Номер записи: 29
02-06-2022 дата публикации

DOPED MIXED CATION PEROVSKITE MATERIALS AND DEVICES EXPLOITING SAME

Номер: US20220173365A1
Автор: ASUO IVY MAWUSI, CLOUTHIER SYLVAIN, GEDAMU DAWIT MINALE, KA IBRAHIMA, NECHACHE RIAD, PIGNOLET ALAIN
Принадлежит:

Organic-inorganic halide perovskite (OIHP) materials through their promising material properties, simple solution processability, low material cost, high photon absorption, carrier mobilities, and tunable band gap are suitable for large area coatings in the fabrication of optical displays, LEDs, photovoltaic cells and photodetectors. However, OIHP stability and shelf life have been limited to date as exposed perovskite films do not survive long in ambient air causing further issues for large scale OIHP based device production and deployment. Accordingly, the inventors have established three-cation material system variants using an innovative single solution thiocyanate (SCN) doped three cation material system allowing tailoring of perovskite grain size and microstructure to minimize degradation from exposure to atmospheric conditions. Further, solvent engineering techniques using the innovative single solution SCN doped three cation material system established by the inventors allow for large area processing, compact OIHP films with large crystal grains (>4 μm), and passivated grain boundaries. 1. A method of forming an optoelectronic device comprising:depositing one or more first layers of the optoelectronic device to form a lower portion of the optoelectronic device;depositing a doped perovskite film to form an active layer of the optoelectronic device; anddepositing one or more second layers of the optoelectronic device to form an upper portion of the optoelectronic device; whereinthe doped perovskite film is formed from a doped triple cation perovskite solution established by doping a triple cation perovskite solution; and{'sub': X', 'Y', 'Z', 'Y', 'M', 'Q', 'N, 'the doped perovskite film has the composition FAMACsPbISCNBrwhere X, Y, Z, M, V, Q, N may each range between 0.0001 to 3.'}2. The method according to claim 1 , whereinthe deposition of the doped perovskite film employs a solvent anti-solvent treatment process.3. (canceled)4. The method according to ...

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Номер записи: 30
09-06-2022 дата публикации

A Method For Producing An Oxide Shell Around Nanocrystals

Номер: US20220177777A1
Автор: Buonsanti Raffaella, LOIUDICE Anna
Принадлежит:

The present invention relates to a method for producing core-shell nanocrystals consisting of a metal-containing nanocrystal core and a shell layer comprising at least one metal oxide material having variable shell thicknesses, and use of the core-shell nanocrystals for different applications. 1. A colloidal atomic layer deposition (c-ALD) method for producing core-shell nanocrystals consisting of a metal-containing nanocrystal core and a shell layer comprising at least one metal oxide material , the method comprising [{'sub': 3', '2', '3, 'wherein the semiconductors are selected from the group consisting of CdSe, ZnSe, InP, ZnP, InSe, C-dot, CsPbX(wherein X is Br, I, or Cl), and combinations thereof,'}, 'wherein the metals are selected from the group consisting of Ag, Au, Pt, Pd, and combinations thereof, and', {'sub': 2', '2', '2, 'wherein the metal oxides are selected from the group consisting of CeO, ZnO, TiO, SiO, and combinations thereof,'}], 'a) providing metal-containing nanocrystal cores selected from the group consisting of semiconductors, metals, metal oxides and combinations thereof,'}b) dispersing metal-containing nanocrystal cores in an organic solvent under inert gas to provide a reaction mixture and maintaining the reaction mixture under inert gas atmosphere,c) introducing one or more highly reactive organometallic compounds to the reaction mixture, wherein the one or more highly reactive organometallic compounds are able to produce volatile secondary products during the reaction and are selected from the group consisting of trimethyl aluminum, dimethylzinc, tetrakis(dimethylamido)titanium(IV), trymethylindium, trymethylgallium and combinations thereof,d) waiting for sufficient time to allow reaction and then deposition of the one or more highly reactive organometallic compounds on the surface of the metal-containing nanocrystal cores,e) introducing the pure oxygen to the reaction mixture,f) waiting for sufficient time to obtain formation of a metal ...

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Номер записи: 31
09-04-2020 дата публикации

SYSTEMS AND METHODS FOR PRODUCING POTASSIUM SULFATE

Номер: US20200109090A1
Автор: Hammer Michael T., Mengel Michael L., Stolzman Barry W.
Принадлежит:

Systems and methods for producing potassium sulfate. Such a method involves providing an industrial waste material that includes at least one metal sulfate or a metal product that has been reacted with sulfuric acid to produce metal sulfates, and then reacting the metal sulfate with potassium carbonate to produce a byproduct that contains potassium sulfate. 1. A method of producing potassium sulfate , the method comprising:providing an industrial waste material that includes at least one metal sulfate or a metal product that has been reacted with sulfuric acid to produce at least one metal sulfate; andreacting the metal sulfate with potassium carbonate to produce a byproduct comprising potassium sulfate.2. The method of claim 1 , further comprising separating and/or filtering the byproduct to remove metal carbonates therefrom and produce a filtered liquor.3. The method of claim 2 , further comprising refining the filtered liquor to produce solid potassium sulfate via a crystallization process.4. The method of claim 2 , further comprising performing a reclamation process on the metal carbonates to isolate a metal thereof.5. The method of claim 1 , wherein the metal sulfate comprises lead sulfate.6. The method of claim 5 , wherein the lead sulfate is a constituent of a lead paste obtained from lead batteries.7. The method of claim 1 , wherein the industrial waste material contains the metal sulfate.8. The method of claim 1 , further comprising reacting the industrial waste material with sulfuric acid to produce the metal sulfate.9. The method of claim 1 , wherein the industrial waste material is from a source chosen from the group consisting of metal refinery waste processing claim 1 , mine drainage claim 1 , ore processing claim 1 , copper refining claim 1 , and a lead recovery operation.10. A system for producing potassium sulfate claim 1 , the system comprising:an industrial waste material that includes at least one metal sulfate or a metal product that has been ...

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Номер записи: 32
09-04-2020 дата публикации

HALIDE PEROVSKITE THIN FILMS AND METHODS FOR PRODUCTION THEREOF

Номер: US20200111982A1
Автор: Geske Thomas, YU Zhibin
Принадлежит:

Methods are provided for making halide perovskite thin films. The method may include forming a pattern of islands of a nucleation promoter material onto a substrate; applying onto the substrate and islands a solution which includes a halide perovskite or pre-cursors thereof, to form a coated substrate; and drying the coated substrate to form a crystalline halide perovskite film. Halide perovskite thin films, which may be made by these methods, and LEDs including these films are also provided. 1. A method of making a halide perovskite thin film comprising:a) forming a pattern of islands of a nucleation promoter material onto a substrate;b) applying onto the substrate and islands a solution which comprises a halide perovskite or precursors thereof, to form a coated substrate; andc) drying the coated substrate to form a crystalline halide perovskite thin film.2. The method of claim 1 , wherein the substrate comprises silicon oxide glass or indium tin oxide glass.3. The method of claim 1 , wherein each of the islands has a diameter of from about 1 μm to about 10 μm.4. The method of claim 1 , wherein the pattern of islands is a grid pattern.5. The method of claim 1 , wherein the pattern of islands has a pitch size of from about 10 μm to about 100 μm.6. The method of claim 1 , wherein the crystalline halide perovskite thin film comprises halide perovskite crystals having a diameter of about the pitch size of the pattern of islands.7. The method of claim 1 , wherein the nucleation promoter material comprises a metal or a metal oxide.8. The method of claim 1 , wherein the nucleation promoter material is gold.9. The method of claim 1 , wherein the crystalline halide perovskite thin film comprises halide perovskite crystals having a diameter or largest dimension of from about 10 μm to about 100 μm.10. The method of claim 1 , wherein the halide perovskite crystals have a height or thickness from about 600 nm to about 700 nm.11. The method of claim 1 , wherein the halide ...

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Номер записи: 33
27-05-2021 дата публикации

NEW LITHIUM MIXED METAL SULFIDE WITH HIGH IONIC CONDUCTIVITY

Номер: US20210155494A1
Автор: HAUTIER Geoffroy, KATOH Yuki, MIGLIO Anna
Принадлежит:

The present invention relates to a compound represented by the general formula LiMZS, wherein 0.3≤x≤0.9; wherein M is one or more elements selected from the group consisting of Pb, Mg, Ca, Ge and Sn; and wherein Z is one or more elements selected from the group consisting of Ge, Si, Sn and Al. 1. A compound represented by the general formula LiMZS , wherein 0.3≤x≤0.9;wherein M is one or more elements selected from the group consisting of Pb, Mg, Ca, Ge and Sn; andwherein Z is one or more elements selected from the group consisting of Ge, Si, Sn and Al.2. The compound according to claim 1 , wherein 0.4≤x≤0.8.3. The compound according to claim 1 , wherein 0.45≤x≤0.75.4. The compound according to claim 1 , wherein x=0.5.5. The compound according to claim 1 , wherein M is one or more elements selected from the group consisting of Pb claim 1 , Mg and Ca.6. The compound according to claim 5 , wherein M is one or more elements selected from the group consisting of Pb and Mg.7. The compound according to claim 6 , wherein M is Pb.8. The compound according to claim 1 , wherein Z is one or more elements selected from the group consisting of Ge claim 1 , Si and Sn.9. The compound according to claim 8 , wherein Z is one or more elements selected from the group consisting of Ge and Si.10. The compound according to claim 9 , wherein Z is Ge.11. The compound according to claim 1 , wherein M=Pb and Z═Ge.12. The compound according to claim 1 , wherein 0.25≤x≤0.75 claim 1 , M=Mg and Z═Si.13. The compound according to claim 1 , having peaks in positions of 2θ=17.75° (±1.0°) claim 1 , 19.26° (±1.0°) claim 1 , 22.84° (±1.0°) claim 1 , 27.38° (±1.0°) claim 1 , 30.06° (±1.0°) claim 1 , 32.82° (±1.0°) claim 1 , 35.94° (±1.0°) claim 1 , 37.34° (±1.0°) claim 1 , 39.06° (±1.0°) in an X-ray diffraction measurement using a CuKα line.15. Method for preparing the material according to claim 1 , comprising the steps of:{'sub': 2', '2', '2+2x', '1-x', '4, 'claim-ref': {'@idref': 'CLM-00001', 'claim ...

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Номер записи: 34
27-05-2021 дата публикации

ALL INORGANIC PEROVSKITE MATERIALS FOR SHORT WAVE IR DEVICES

Номер: US20210155496A1
Автор: CHEN Gugang, Li Xia, RAO Yi
Принадлежит:

All inorganic perovskites for short-wave IR (SWIR) devices having improved chemical stability and long-term stability. Improved methods of making all inorganic perovskites for short-wave IR (SWIR) devices are also disclosed herein. 1. An inorganic perovskite material having the general formula ABXYwherein:{'sup': +', '+, 'AX is a first metal salt comprising: A, a first monovalent alkali metal cation, and X, a first monovalent anion; and'}{'sup': 2+', '2+, 'sub': 2', '2, 'BYis a second metal salt comprising: B, a second bivalent alkali earth metal, heavy metal, or transition metal cation, and Y, two second monovalent anions;'}wherein the molar ratio of the first metal salt to the second metal salt is about 2:1.2. The inorganic perovskite material of claim 1 , wherein the first metal salt is cesium iodide.3. The inorganic perovskite material of claim 1 , wherein the second metal salt is lead (II) iodide.4. The inorganic perovskite material of claim 1 , further comprising a stabilizer.5. The inorganic perovskite material of claim 4 , wherein the stabilizer is 1-(3-sulfopropyl) pyridinium hydroxide inner salt.6. The inorganic perovskite material of claim 5 , wherein the stabilizer is present at a weight ratio of about 0.8% compared to the combined weight of the first metal salt and the second metal salt.7. The inorganic perovskite material of claim 1 , wherein the first monovalent anion and/or the two second monovalent anions are Br— claim 1 , Cl— claim 1 , I— claim 1 , or combinations thereof.8. The inorganic perovskite material of claim 1 , further comprising the inorganic perovskite material is a layer on a glass substrate; the glass substrate operative to stabilize the inorganic perovskite material.9. The inorganic perovskite material of claim 8 , wherein the inorganic perovskite material does not change in maximum wavelength of absorbance from 1000 nm to 2800 nm at ambient temperature for longer than about 8 days.10. The inorganic perovskite material of claim 1 , ...

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Номер записи: 35
10-06-2021 дата публикации

Perovskite-based nanocrystal scintillators

Номер: US20210171828A1
Автор: Qiushui Chen, Xiaogang Liu
Принадлежит: NATIONAL UNIVERSITY OF SINGAPORE

A nanocrystal scintillator that contains a thin-film layer of perovskite-based quantum dots coated on a substrate layer. The quantum dots each have a formula of CsPbXaY3-a, CH3NH3PbX3, or NH2CH═NH2PbX3, in which each of X and Y, independently, is Cl, Br, or I, and a is 0-3. The substrate layer is an aluminum substrate, a fluoropolymer substrate, a fiber optic plate, a ceramic substrate, or a rubber substrate. Also disclosed are an ionizing radiation detector and an ionizing radiation imaging system containing such a nanocrystal scintillator.

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Номер записи: 36
24-05-2018 дата публикации

USE OF IONIC LIQUIDS IN COMPOSITIONS FOR GENERATING OXYGEN

Номер: US20180141029A1
Автор: GROCHE Florian J., KALLFASS Christoph, KUEHN Fritz
Принадлежит:

The present invention is directed to the use of an ionic liquid as a dispersant or solvent and as a heat sink in a composition for generating oxygen, the composition further comprising at least one oxygen source formulation, and at least one metal oxide compound formulation, wherein the oxygen source formulation comprises a peroxide compound, the ionic liquid is in the liquid state at least in a temperature range from −10° C. to +50° C., and the metal oxide compound formulation comprises a metal oxide compound which is an oxide of one single metal or of two or more different metals, said metal(s) being selected from the metals of groups 2 to 14 of the periodic table of the elements. 1. Use of an ionic liquid as a dispersant or solvent and as a heat sink in a composition for generating oxygen , the composition further comprising at least one oxygen source formulation , andat least one metal oxide compound formulation, whereinthe oxygen source formulation comprises a peroxide compound,the ionic liquid is in the liquid state at least in a temperature range from −10° C. to +50° C., andthe metal oxide compound formulation comprises a metal oxide compound which is an oxide of one single metal or of two or more different metals, said metal(s) being selected from the metals of groups 2 to 14 of the periodic table of the elements.2. The use according to claim 1 , wherein the peroxide compound is selected from alkali metal percarbonates claim 1 , alkali metal perborates claim 1 , urea hydrogen peroxide claim 1 , and mixtures thereof.3. The use according to claim 1 , wherein the peroxide compound is one or more of NaCO×1.5HO claim 1 , NaBO×4HO claim 1 , NaBO×HO claim 1 , and urea hydrogen peroxide.4. The use according to claim 1 , wherein the ionic liquid is at least one salt having a cation and an anion claim 1 , wherein the cation is selected from the group consisting of imidazolium claim 1 , pyrrolidinium claim 1 , ammonium claim 1 , choline claim 1 , pyridinium claim 1 , ...

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Номер записи: 37
24-05-2018 дата публикации

METHOD FOR GENERATING OXYGEN FROM COMPOSITIONS COMPRISING IONIC LIQUIDS

Номер: US20180141812A1
Автор: GROCHE Florian J., KALLFASS Christoph, KUEHN Fritz
Принадлежит:

The present invention is directed to a method for generating oxygen comprising providing at least one oxygen source, providing at least one ionic liquid, providing at least one metal oxide compound, wherein the oxygen source is a peroxide compound, the ionic liquid is in the liquid state at least in the temperature range from −10° C. to +50° C., and the metal oxide compound is an oxide of one single metal or of two or more different metals, said metal(s) being selected from the metals of groups 2 to 14 of the periodic table of the elements, and contacting the oxygen source, the ionic liquid, and the metal oxide compound. 1. A method for generating oxygen comprisingproviding at least one oxygen source,providing at least one ionic liquid, the oxygen source is a peroxide compound,', 'the ionic liquid is in the liquid state at least in the temperature range from −10° C. to +50° C., and', 'the metal oxide compound is an oxide of one single metal or of two or more different metals, said metal(s) being selected from the metals of groups 2 to 14 of the periodic table of the elements, and, 'providing at least one metal oxide compound, wherein'}contacting the oxygen source, the ionic liquid, and the metal oxide compound.2. The method according to claim 1 , wherein the oxygen source and the ionic liquid are provided as a first component claim 1 , the metal oxide compound is provided as a second component claim 1 , and the step of contacting comprises mixing the first and the second components.3. The method according to claim 1 , wherein the metal oxide compound and the ionic liquid are provided as a first component claim 1 , the oxygen source is provided as a second component claim 1 , and the step of contacting comprises mixing the first and the second component.4. The method according to claim 1 , wherein the oxygen source and the metal oxide compound are provided as a first component claim 1 , the ionic liquid is provided as a second component claim 1 , and the step of ...

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Номер записи: 38
04-06-2015 дата публикации

Nanocrystal synthesis

Номер: US20150151980A1
Автор: Ferry PRINS, Mark WEIDMAN, Megan BECK, William Tisdale
Принадлежит: Massachusetts Institute of Technology

A method of preparing monodisperse MX semiconductor nanocrystals can include contacting an M-containing precursor with an X donor to form a mixture, where the molar ratio between the M containing precursor and the X donor is large. Alternatively, if additional X donor is added during the reaction, a smaller ratio between the M containing precursor and the X donor can be used to prepare monodisperse MX semiconductor nanocrystals.

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Номер записи: 39
07-05-2020 дата публикации

Light-responsive LED based on GaN/CsPbBrxI3-x heterojunction, and preparation method and application thereof

Номер: US20200144438A1
Автор: Ma Guokun, Song Zehao, Wang Hao, Zhou Hai
Принадлежит:

A light-responsive LED (Light Emitting Diode) based on a GaN/CsPbBrIheterojunction, a preparation method and an application thereof are provided. The light-responsive LED consists of a GaN base layer on a sapphire substrate, an all-inorganic perovskite CsPbBrIfilm, an indium electrode and a carbon electrode, forming an In/GaN/CsPbBrI/C structure, wherein: in the CsPbBrIfilm, 0 Подробнее

Номер записи: 40
07-06-2018 дата публикации

All solid fluoride ion battery

Номер: US20180159129A1
Автор: Kazuto Ide
Принадлежит: Toyota Motor Corp

An object of the present disclosure is to provide an all solid fluoride ion battery that has a favorable capacity property. The present disclosure achieves the object by providing an all solid fluoride ion battery comprising: a cathode layer, an anode layer, and a solid electrolyte layer formed between the cathode layer and the anode layer; wherein the anode layer includes a metal fluoride containing an M1 element, an M2 element, and a F element; the M1 element is a metal element that fluorination and defluorination occur at a potential, versus Pb/PbF 2 , of −2.5 V or more; the M2 element is a metal element that neither fluorination nor defluorination occur at a potential, versus Pb/PbF 2 , of −2.5 V or more; and the M2 element is a metal element that, when in a form of a fluoride, fluoride ion conductivity is 1×10 −4 S/cm or more at 200° C.

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Номер записи: 41
22-09-2022 дата публикации

System, Emanation Generator, and Process for Production of High-Purity Therapeutic Radioisotopes

Номер: US20220301737A1
Автор: OHara Matthew J.
Принадлежит: BATTELLE MEMORIAL INSTITUTE

An isotope production system, emanation generator, and process are disclosed for production of high-purity radioisotopes. In one implementation example, high-purity Pb-212 and/or Bi-212 isotopes are produced suitable for therapeutic applications. In one embodiment the process includes transporting gaseous radon-220 from a radium-224 bearing generator which provides gas-phase separation of the Rn-220 from the Ra-224 in the generator. Subsequent decay of the captured Rn-220 accumulates high-purity Pb-212 and/or Bi-212 isotopes suitable for direct therapeutic applications. Other high-purity product isotopes may also be prepared. 1. An emanation system for production of ultrapure radioisotopes , comprising:an emanation device having an emanation source comprising a source isotope therein that emanates a radioactive gas therefrom; anda collection device configured to collect the radioactive gas retaining same for a time sufficient to yield one or more high purity radioactive daughter isotopes therein.2. The system of wherein the source isotope is selected from Thorium-228 and/or Radium 224; Thorium-227 and/or Radium-223; or Thorium-230 and/or Radium-226.3. The system of wherein the radioactive gas is selected from Radon-220; Radon-219; and Radon-222.4. The system of wherein the radioactive gas is a radioactive noble gas.5. The system of wherein the source isotope is disposed on a particle surface or a permeable support.6. The system of wherein the source isotope is disposed on magnetic or paramagnetic metal oxide particles.7. The system of wherein the source isotope is disposed on a gas-permeable support.8. The system of wherein the collection device includes a cooling device configured to cool the radioactive gas emanated from the emanation device.9. The system of wherein the collection device includes a soluble salt configured as a thin film or a packed salt claim 1 , or a lipophilic liquid configured as a thin film or a thin film coating on a solid support to extract ...

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Номер записи: 42
11-09-2014 дата публикации

Method for Producing Aqueous Compatible Nanoparticles

Номер: US20140252273A1
Автор: Mark Christopher Mccairn, Nigel Pickett
Принадлежит: Nanoco Technologies Ltd

A method for producing aqueous compatible semiconductor nanoparticles includes binding pre-modified ligands to nanoparticles without the need for further post-binding modification to render the nanoparticles aqueous compatible. Nanoparticles modified in this way may exhibit enhanced fluorescence and stability compared to aqueous compatible nanoparticles produced by methods requiring post-binding modification processes.

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Номер записи: 43
01-07-2021 дата публикации

Luminescent composite material and preparation method therefor

Номер: US20210198568A1
Автор: BO Wang, Liang Li
Принадлежит: Shanghai Jiaotong University

A luminescent composite material and a preparation method therefor. The luminescent composite material is prepared by mixing a precursor of a quantum dot and an oxide or a precursor thereof followed by high-temperature calcination. Compared with traditional methods, the method provided herein is a simple and low-cost synthesis process without using solvents, and is suitable for large-scale production. The luminescent composite material has high quantum efficiency, luminous intensity and luminous color purity and good photothermal stability, which can provide basis for theoretical research and applications of the luminescent composite material in high-performance photoluminescence devices, lasers and nonlinear optical devices.

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Номер записи: 44
21-06-2018 дата публикации

AQUEOUS-BASED METHOD OF PREPARING METAL CHALCOGENIDE NANOMATERIALS

Номер: US20180170754A1
Автор: Dou Shixue, Han Chao, Li Zhen
Принадлежит:

Provided is a method for producing metal chalcogenide nanomaterials, comprising the steps of forming an aqueous solution of a chalcogen precursor, a reducing agent and a metal salt; mixing the aqueous solution for a duration of time at a reaction temperature of between about 10° C. to about 40° C., inclusively; and separating the produced metal chalcogenide nanomaterials from the aqueous solution. Also provided is a method of converting metal chalcogenide nanoparticles into metal chalcogenide nanotubes or nanosheets, comprising the steps of forming an aqueous mixture of a chalcogen precursor, a reducing agent and the metal chalcogenide nanoparticles in water; and forming the nanotubes or nanosheets by stirring or not stirring the aqueous mixture, respectively. 1. A method for producing metal chalcogenide nanomaterials , comprising the steps of:forming an aqueous solution of a chalcogen precursor, a reducing agent and a metal salt;mixing the aqueous solution for a duration of time at a reaction temperature of between about 10° C. to about 40° C., inclusively; and,separating a produced metal chalcogenide nanomaterial from the aqueous solution.2. The method of claim 1 , wherein the metal chalcogenide nanomaterial is produced without use of a surfactant.3. The method of claim 1 , wherein the reaction temperature is between about 10° C. to about 30° C. claim 1 , inclusively.4. The method of claim 1 , wherein the reaction temperature is between about 20° C. to about 30° C. claim 1 , inclusively.5. The method of claim 1 , wherein the reaction temperature is about room temperature.6. The method of claim 5 , wherein external heating is not used.7. The method of claim 1 , wherein the produced metal chalcogenide nanomaterial has a formula of ME claim 1 , where:M is Bi, Cu, Pb, Ag, In, Sn, or Sb;E is O, S, Se or Te when M is Cu, or E is S, Se or Te when M is Bi, Pb, Ag, In, Sn, or Sb; and1≤x≤2 and 1≤y≤3.8. The method of claim 1 , wherein the produced metal chalcogenide ...

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Номер записи: 45
18-09-2014 дата публикации

CONTINUOUS FLOW REACTOR FOR THE SYNTHESIS OF NANOPARTICLES

Номер: US20140264171A1
Автор: Haben Patrick M., Novet Thomas E., PETERSON DANIEL A., Schut David M., WILLIAMS George M.
Принадлежит: Shoei Electronic Materials, Inc.

A continuous flow reactor for the efficient synthesis of nanoparticles with a high degree of crystallinity, uniform particle size, and homogenous stoichiometry throughout the crystal is described. Disclosed embodiments include a flow reactor with an energy source for rapid nucleation of the procurors following by a separate heating source for growing the nucleates. Segmented flow may be provided to facilitate mixing and uniform energy absorption of the precursors, and post production quality testing in communication with a control system allow automatic real-time adjustment of the production parameters. The nucleation energy source can be monomodal, multimodal, or multivariable frequency microwave energy and tuned to allow different precursors to nucleate at substantially the same time thereby resulting in a substantially homogenous nanoparticle. A shell application system may also be provided to allow one or more shell layers to be formed onto each nanoparticle. 1. A method for producing uniformly sized nanoparticles comprising:blending at least a first precursor and at least a second precursor together to form a mixture of precursors that travels down a tube in a continuous flow path;extending the continuous flow path through a first energy source that applies microwave energy to the mixture of precursors to uniformly activate the mixture of precursors within the tube for a first duration time at a first energy level thereby allowing uniform nucleation of the mixture of precursors;extending the continuous flow path through a heating source for a second duration time at a controlled temperature allowing uniform thermodynamic growth around previously formed nucleates to form desired core sized nanoparticles; and,quenching the growth of the nanoparticles.2. The method of claim 1 , wherein the microwave energy is monomodal.3. The method of claim 1 , wherein the microwave energy is multimodal.4. The method of claim 1 , wherein the microwave energy is multivariable ...

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Номер записи: 46
06-06-2019 дата публикации

COMPOSITIONS AND METHODS RELATING TO LUMINESCENT STRUCTURES

Номер: US20190169498A1
Автор: BAKR Osman M., SAIDAMINOV Makhsud I.
Принадлежит:

Described herein are compositions and methods relating to luminescent structures. 1. A method for synthesizing a zero-dimensional perovskite , comprising:{'sub': 2', '2, 'mixing at least one of CsR or Cs(R)with at least one of PbR or Pb(R)in a solvent to create a mixture, wherein R is at least one of a halogen, a halogen anion, a monovalent anion, or the conjugate base of an acid;'}heating the mixture to a temperature in a range of about 40° C. to about 180° C. and holding the mixture at the temperature for a period of time to form a precipitate, ormixing the mixture with an antisolvent vapor and exposing the mixture to the antisolvent vapor for a period of time to form a precipitate;isolating the precipitate;washing the precipitate with a wash solvent to produce a washed precipitate; anddrying the washed precipitate by a drying method to produce the zero-dimensional perovskite.2. The method of claim 1 , wherein R is at least one of Br claim 1 , Cl claim 1 , I claim 1 , or CHCOO.3. The method of claim 1 , wherein the mixing is done with a ratio of about 1 to about 1.4. The method of claim 1 , wherein the temperature is about 120° C.5. The method of claim 1 , wherein CsBr and PbBrare mixed.6. The method of claim 1 , wherein the solvent is selected from the group consisting of DMSO claim 1 , DMSO-DMF claim 1 , DMF claim 1 , and GBL.7. The method of claim 1 , wherein the antisolvent is one or more of hydrocarbons claim 1 , halocarbons claim 1 , ethers claim 1 , and ketones.8. The method of claim 1 , wherein the holding period of time is about one hour or more.9. The method of claim 1 , wherein the isolation method comprises:filtering the precipitate with a filtering apparatus to obtain the isolated precipitate; andstoring at room temperature or heating the isolated precipitate to about 120° C. and holding the isolated precipitate at said temperature for about three hours.10. The method of claim 1 , wherein the wash solvent is selected from the group consisting of DMSO ...

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Номер записи: 47
28-05-2020 дата публикации

Film, Production Method for Composition, Production Method for Cured Product, and Production Method for Film

Номер: US20200165397A1
Автор: Shota Naito, Takashi Arimura, Takeshi Miyamoto
Принадлежит: Sumitomo Chemical Co Ltd

The present invention relates to a film including a light-emitting semiconductor fine particle (1), a silazane or modified product thereof (2), and a polymerizable compound or polymer (4), in which the film has a sea-island-like phase separation structure, in the sea-island-like phase separation structure, the polymerizable compound or polymer (4) is present in a sea-like hydrophobic region, and the light-emitting semiconductor fine particle (1) and the silazane or modified product thereof (2) are present in an island-like hydrophilic region, and the island-like hydrophilic region has a size of 0.1 μm to 100 μm.

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Номер записи: 48
07-07-2016 дата публикации

METHODS AND SYSTEMS USING ELECTROCHEMICAL CELLS FOR PROCESSING METAL SULFATE COMPOUNDS FROM MINE WASTE AND SEQUESTERING CO2

Номер: US20160194208A1
Автор: Carne Andrew, Eaton William Douglas, Groat Lee, Lake Donald
Принадлежит:

Systems and methods are provided for processing metal sulfate compounds and sequestering CO. These systems and processes involve one or more electrochemical cells for producing an alkali-containing catholyte and involve a COabsorption reactor operatively connected to the electrochemical cell and to a COsource. The COabsorption reactor receives the alkali-containing catholyte and COgas for forming an alkaline carbonate solution. The alkaline carbonate solution is directed to a vessel where it reacts with an acidic sulfate solution comprising metal ions resulting in precipitation of solid metal carbonate compounds. The acidic sulfate solution may comprise sulfide leachates from acid mine drainage, sulfide mine tailings and/or reacted pyrite concentrate. The acidic sulfate solution may be circulated through an optional SOreduction reactor prior to reaction in the vessel. The SOreduction reactor reduces trivalent metal compounds present in the acidic sulfate solution to divalent metal compounds. 1. A system for processing metal sulfate compounds and sequestering CO , comprising:an electrochemical cell producing an alkali-containing catholyte;{'sub': 2', '2', '2', '2, 'a COabsorption reactor operatively connected to said electrochemical cell and to a source of CO, said COabsorption reactor receiving said alkali-containing catholyte and said COfor forming an alkaline carbonate solution; and'}a vessel for receiving an acidic solution containing metal sulfate compounds and for receiving said alkaline carbonate solution, said vessel allowing precipitation of solid metal carbonate compounds.2. The system of claim 1 , wherein said alkaline carbonate compound solution comprises at least one of carbonate ions claim 1 , sodium carbonate claim 1 , sodium bicarbonate claim 1 , potassium carbonate claim 1 , calcium carbonate and mixtures thereof.3. The system of claim 1 , wherein said acidic sulfate solution comprises sulfide leachates from acid mine drainage claim 1 , sulfide mine ...

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Номер записи: 49
06-07-2017 дата публикации

One-step process for synthesis of core shell nanocrystals

Номер: US20170190967A1
Автор: Havva Yagci Acar, Ibrahim Hocaoglu, Leyla Dogan, Osman Vedat Akgun, Pinar Dagtepe
Принадлежит: KOC Universitesi, Kuantag Nanoteknolojiler Gelistirme Ve Uretim AS

Present invention provides a process for the synthesis of size and composition tunable colloidal PbMgS core and PbMgS/MS core shell quantum dots emitting in the near infrared (NIR) region of the spectrum in a single operation in a continuous flow reactor. M includes at least one of Cd, Mg, Zn and Cu metals.

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Номер записи: 50
20-06-2019 дата публикации

PROCESS FOR THE PREPARATION OF HALIDE PEROVSKITE AND PEROVSKITE-RELATED MATERIALS

Номер: US20190185495A1
Автор: Cahen David, KEDEM Nir, MODES Gary, RAKITA Yevgeny
Принадлежит: YE DA RESEARCH AND DEVELOPMENT CO. LTD.

This invention is related to a method for the preparation of halide perovskite or perovskite-related materials on a substrate and to optoelectronic devices and photovoltaic cells comprising the perovskites prepared by the methods of this invention The method for the preparation of the perovskite includes a direct conversion of elemental metal or metal alloy to halide perovskite or perovskite-related materials. 1. A method for the preparation of halide perovskite or perovskite-related material of formula ABX;wherein:A is at least one monovalent or divalent organic cation, inorganic cation or combination thereof;X is at least one halide anion, a pseudohalide anion or combination thereof;u is between 1-10;v is between 1-10;w is between 3-30;B is at least one metal cation wherein, when combined with A and X, forms a perovskite or perovskite-related material;wherein the inorganic cation of A is different from the metal cation of B; 'depositing a layer of metal or metal alloy of B on a substrate; and', 'wherein said method comprises{'sub': u', 'v', 'w, 'treating said layer of metal or metal alloy of B with a solution or vapor comprising A and X and applying an electrical bias; wherein said solution or vapor reacts with said metal or metal alloy of B to form a halide perovskite or perovskite-related material of formula ABXon said solid surface;'} 'depositing a layer of salt comprising A and X on a substrate; and', 'or'}{'sub': u', 'v', 'w, 'treating said layer of salt with a vapor of metal or metal alloy of B; wherein said metal or metal alloy of B reacts with said salt to form a halide perovskite or perovskite-related material of formula ABXon said solid surface.'}2. The method of claim 1 , wherein said method comprises:depositing a layer of metal or metal alloy of B on a substrate; and{'sub': u', 'v', 'w, 'treating said layer of metal or metal alloy of B with a solution or vapor comprising A and X and applying an electrical bias; wherein said solution or vapor reacts ...

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Номер записи: 51
22-07-2021 дата публикации

LOW alpha-RAY EMISSION STANNOUS OXIDE AND METHOD OF PRODUCING THE SAME

Номер: US20210221700A1
Автор: Hirotaka Hirano, Takuma Katase, Yoshihiro Yoshida
Принадлежит: Mitsubishi Materials Corp

What is provided is stannous oxide having an α-ray emission amount of 0.002 cph/cm2 or less after heating in an atmosphere at 100° C. for 6 hours. Tin containing lead as an impurity is dissolved in a sulfuric acid aqueous solution to prepare a tin sulfate aqueous solution, and lead sulfate is precipitated in the aqueous solution and removed. While stirring the tin sulfate aqueous solution from which lead sulfate has been removed, a lead nitrate aqueous solution containing lead having an α-ray emission amount of 10 cph/cm2 or less is added to cause lead sulfate to be precipitated in the tin sulfate aqueous solution, and simultaneously the tin sulfate aqueous solution is circulated while removing the lead sulfate from the aqueous solution. A neutralizing agent is added to the tin sulfate aqueous solution to collect stannous oxide.

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Номер записи: 52
22-07-2021 дата публикации

PASSIVATION OF NANOCRYSTALS TAILORED TO DIFFERENT FACETS, AND ITS APPLICATION TO OPTOELECTRONIC DEVICES

Номер: US20210222326A1
Автор: CHE Fanglin, CHOI Jongmin, GARCIA DE ARQUER Francisco Pelayo, HOOGLAND Sjoerd, JO Jea Woong, Kim YoungHoon, Sargent Edward H.
Принадлежит:

The present disclosure provides a method for facet-selective passivation on each crystal facet of colloidal nanocrystals via solution-phase ligand exchange process, thereby providing highly-passivated and colloidally-stable nanocrystal inks. This ligand exchange strategy separately addresses polar and non-polar facets precluding from deleterious nanocrystal aggregation in the colloid. The method involves the introduction of alkali metal organic complexes during metal halide conventional solution exchanges, and one specific example is Na.Ac. Alkali metal ions stabilize and passivate non polar facets whereas polar facets are passivated through metal halides. This strategy leads to a significant decrease in nanocrystal aggregation during and after ligand exchange, and to improved photophysical properties stemming from this. The resulting nanocrystal solid films exhibit improved stability, retain their absorption features, and have a minimized Stokes shift. 1. A colloidal nanocrystal comprising at least two distinct classes of crystal facets exposed at an outer surface thereof , wherein a first class of crystal facets is substantially nonpolar , and wherein a second class of crystal facets is polar , wherein the substantially nonpolar facet is passivated by an alkali metal and the polar facet passivated by at least one halide.2. The colloidal nanocrystal according to claim 1 , wherein said first class of crystal facets is substantially neutral in addition to being substantially nonpolar claim 1 , and wherein said second class of crystal facets is substantially non-neutral in addition to being polar.3. The colloidal nanocrystal according to claim 1 , wherein said alkali metal is any one or combination of lithium claim 1 , sodium claim 1 , potassium claim 1 , rubidium and cesium.4. The colloidal nanocrystal according to claim 1 , wherein said alkali metal is sodium.5. The colloidal nanocrystal according to claim 1 , wherein said halide is any one or combination of bromine ...

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Номер записи: 53
25-09-2014 дата публикации

Mixture of basic lead sulfates

Номер: US20140287313A1
Автор: Mayer George E.
Принадлежит:

A microporous lead-containing solid material is produced, which can serve as a carrier for desired materials into a reaction for various desired purposes. For example, if the microporous solid is impregnated with borax it tends to inhibit the growth of unduly large crystals of tetrabasic lead, which is useful in producing batteries having improved functional qualities. 1. A composition of matter comprising lead sulfates which has high internal porosity and density <3.5 g/cc.2. The composition of matter of further comprising predominantly tetrabasic lead sulfate and tribasic lead sulfate.3. The combination of matter of claim 1 , wherein the pores of the material comprising basic lead sulfates are impregnated with a material capable of altering the pattern of crystal growth of other substances.4. The combination of matter of claim 3 , wherein the material capable of altering the pattern of crystal growth of other substances is selected from the group consisting of borax or another combination of an alkaline anion with a suitable cation claim 3 , selected from the group consisting of borates claim 3 , phosphates claim 3 , acid phosphates claim 3 , silicates claim 3 , and fluoborates.5. A method of manufacture of a composition of matter comprising basic lead sulfates which has high internal porosity and density <3.5 g/cc claim 3 , said method comprising the steps of mixing leady lead oxide claim 3 , water and sulfuric acid into a doughy mass claim 3 , said mixing step being performed very rapidly and at elevated temperature claim 3 , followed by grinding claim 3 , such that the doughy mass is reduced to a fine powder of lead salts.6. The method of claim 5 , where the ratio of oxide to water to sulfuric acid is 100 parts by weight of oxide claim 5 , to from 10 to 30 parts water claim 5 , to from 10 to 30 parts of 50 wt % sulfuric acid (1.400 sp.gr.) claim 5 , preferably 100 parts by weight of oxide to 10 parts by weight of water to 15 parts by weight of acid.7. The ...

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Номер записи: 54
18-06-2020 дата публикации

MANUFACTURING OF PEROVSKITE FILMS

Номер: US20200189927A1
Автор: van Hest Marinus Franciscus Antonius Maria, WHITAKER James Bacon, Zhu Kai
Принадлежит:

The present disclosure relates to a mixture that includes a perovskite precursor, a solvent, and an additive that includes at least one of a first amine, a ketone, an aldehyde, a non-nucleophilic sterically hindered base, and/or a halogen-containing compound, where, upon removal of the solvent and the additive, the perovskite precursor is capable of being transformed into a perovskite. 1. A mixture comprising:a perovskite precursor;a solvent; andan additive comprising at least one of a first amine, a ketone, an aldehyde, a non-nucleophilic sterically hindered base, or a halogen-containing compound, wherein:upon removal of the solvent and the additive, the perovskite precursor is capable of being transformed into a perovskite.2. The mixture of claim 1 , wherein the additive is present at a first concentration relative to the solvent between greater than 0 v/v and less than or equal to 20% v/v.3. The mixture of claim 1 , wherein:{'sub': '3', 'the perovskite has a stoichiometry of ABX,'}A is a first cation,B is a second cation, andX is an anion.4. The mixture of claim 1 , wherein the perovskite precursor comprises at least one of methylammonium chloride (MACl) claim 1 , methylammonium bromide (MABr) claim 1 , methylammonium iodide (MAI) claim 1 , formamidinium chloride (FACl) claim 1 , formamidinium bromide (FABr) claim 1 , formamidinium iodide (FAI) claim 1 , lead iodide (PbI) claim 1 , tin iodide claim 1 , cesium chloride claim 1 , cesium bromide claim 1 , or cesium iodide.5. The mixture of claim 1 , wherein the ketone comprises at least one of 4 claim 1 ,4-dimethyl-2-pentanone claim 1 , acetone claim 1 , 2-heptanone claim 1 , or 2 claim 1 ,4-dimethyl-3-pentanone.6. The mixture of claim 1 , wherein the aldehyde comprises at least one of acetaldehyde or benzaldehyde.7. The mixture of claim 1 , wherein the non-nucleophilic sterically hindered base comprises at least one of diisopropylethylamine claim 1 , triethylamine claim 1 , 2 claim 1 ,6-di-t-butylpyridine claim 1 , ...

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Номер записи: 55
29-07-2021 дата публикации

FABRICATION PROCESS FOR A/M/X MATERIALS

Номер: US20210230480A1
Автор: Sakai Nobuya, Snaith Henry James, Wenger Bernard Abbas
Принадлежит:

The invention relates to a process for producing a crystalline A/M/X material, which crystalline A/M/X material comprises a compound of formula [A][M][X]wherein: [A] comprises one or more A cations; [M] comprises one or more M cations which are metal or metalloid cations; [X] comprises one or more X anions; a is a number from 1 to 6; b is a number from 1 to 6; and c is a number from 1 to 18. The process is capable of producing crystalline A/M/X materials while precisely controlling their stoichiometry, leading to products with finely tunable optical properties such as peak emission wavelength. The invention also relates to process for producing a thin film comprising the crystalline A/M/X material of the invention, and to a thin film obtainable by the process of the invention. An optoelectronic device comprising the thin film is also provided. 1. A process for producing a crystalline A/M/X material , which crystalline A/M/X material comprises a compound of formula:{'br': None, 'sub': a', 'b', 'c, '[A][M][X]'} [A] comprises one or more A cations;', '[M] comprises one or more M cations which are metal or metalloid cations;', '[X] comprises one or more X anions;', 'a is a number from 1 to 6;', 'b is a number from 1 to 6; and', 'c is a number from 1 to 18,, 'wherein a) contacting an aqueous solution comprising an A precursor and an aqueous solvent with an organic solution comprising an M precursor and an organic solvent; and', 'b) allowing a precipitate to form when the said aqueous and organic solutions are contacted., 'the process comprising2. A process according to which is a process for preparing a thin film of said crystalline A/M/X material claim 1 , the process further comprising:c) optionally washing the precipitate;d) dissolving the precipitate in an organic solvent to form a film-forming solution; ande) dispersing the film-forming solution on a substrate.3. A process according to which is a process for preparing a thin film of said crystalline A/M/X material ...

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Номер записи: 56
19-07-2018 дата публикации

Lead oxychloride, infrared nonlinear optical crystal, and preparation method thereof

Номер: US20180202069A1
Автор: HUI Zhang, Min Zhang, Shilie Pan
Принадлежит: Xinjiang Technical Institute of Physics and Chemistry of CAS

An oxychloride infrared nonlinear optical crystal and the preparation method and use thereof, the optical crystal has a general chemical formula of Pb 2+x OCl 2+2x , therein 0<x<0.139 or 0.141<x<0.159 or 0.161<x≤0.6. The crystal is non-centrosymmetric, belongs to orthonormal system with space group of Fmm2, cell parameter is a=35.4963(14)±0.05 Å, b=5.8320(2)±0.05 Å, c=16.0912(6)±0.05 Å. The crystal is prepared by high temperature melt method or flux method. The crystal has a strong second harmonic generation efficiency of 4 times that of KDP (KH 2 PO 4 ) tested by Kurtz method, it is phase machable, transparent in the range of 0.34-7 μm. The laser damage threshold is 10 times that of the current commercial infrared nonlinear optical crystal AgGaS 2 . No crystalline water exists in lead oxychloride, and it is stable in the air and has good thermal stability.

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Номер записи: 57
29-07-2021 дата публикации

FLEXIBLE INORGANIC PEROVSKITE SOLAR CELLS AND ROOM-TEMPERATURE PROCESSING THEREOF

Номер: US20210233717A1
Автор: LIU Dianyi, Lunt Richard R.
Принадлежит: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY

A flexible photovoltaic device is provided. The flexible photovoltaic device includes a flexible inorganic halide perovskite. The flexible inorganic halide perovskite is free of organic components, has a thickness of greater than or equal to about 1 μm to less than or equal to about 1 nm, and has an average grain size of less than or equal to about 500 nm. 1. A flexible photovoltaic device comprising:a flexible inorganic halide perovskite.2. The flexible photovoltaic device according to claim 1 , wherein the flexible inorganic halide perovskite is free of organic components.3. The flexible photovoltaic device according to claim 1 , wherein the flexible inorganic halide perovskite has a thickness of greater than or equal to about 1 nm to less than or equal to about 1 μm.4. The flexible photovoltaic device according to claim 1 , wherein the flexible inorganic halide perovskite has an average grain size of less than or equal to about 500 nm.5. The flexible photovoltaic device according to claim 1 , wherein the flexible inorganic halide perovskite has an average grain size of less than or equal to about 100 nm.6. The flexible photovoltaic device according to claim 1 , wherein the flexible inorganic halide perovskite has a bend radius of greater than or equal to about 1 mm to less than or equal to about 100 mm.7. The flexible photovoltaic device according to claim 1 , wherein the flexible inorganic halide perovskite has a bend radius of greater than or equal to about 3 mm to less than or equal to about 10 mm.8. The flexible photovoltaic device according to claim 1 , wherein the flexible inorganic halide perovskite corresponds to the formula ABX claim 1 , ABX claim 1 , ABB′X claim 1 , ACX claim 1 , ACDX claim 1 , or (A′X)BX claim 1 , wherein:A is a 1+ alkali metal, a 1+ transition metal, a 1+ lanthanide, a 1+ actinide, or a 1+ compound having the formula A′X;A′ is an alkaline earth metal, a 2+ transition metal, a 2+ lanthanide, a 2+ actinide, or a combination thereof;B is ...

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Номер записи: 58
26-07-2018 дата публикации

LUMINESCENT CRYSTALS AND MANUFACTURING THEREOF

Номер: US20180208840A1
Автор: LÜCHINGER Norman Albert, OSZAJCA Marek
Принадлежит:

The present invention relates to the field of luminescent crystals (LCs), and more specifically to Quantum Dots (QDs) of formula MMX, wherein the substituents are as defined in the specification. The invention provides methods of manufacturing such luminescent crystals, particularly by dispersing suitable starting materials in the presence of a liquid and by the aid of milling balls; to compositions comprising luminescent crystals and to electronic devices, decorative coatings; and to intermediates comprising luminescent crystals. 2. The method according to whereby dispersing of step (b)is effected by agitated milling balls with a ball size between 10-1000 μm; and/oris effected with a specific power input per weight of suspension of at least 100 W/kg; and/oris effected at a temperature below 120° C.3. The method according to claim 1 , wherein said luminescent crystals are selected from the group of CsPbX4. The method according to claim 1 , wherein said solvents are selected from the group of aliphatic hydrocarbons (including linear claim 1 , branched and cyclic hydrocarbons) claim 1 , aromatic hydrocarbons claim 1 , ethers (including glycol-ethers) claim 1 , esters claim 1 , alcohols claim 1 , ketones.5. The method according to claim 1 , wherein said surfactants are selected from the group of non-ionic claim 1 , anionic claim 1 , cationic and zwitter-ionic surfactants.6. The method according to claim 1 , wherein said pre-polymer is selected from the group of acrylates claim 1 , carbonates claim 1 , sulfones claim 1 , epoxies claim 1 , vinyls claim 1 , urethanes claim 1 , imides claim 1 , esters claim 1 , furanes claim 1 , melamines claim 1 , styrenes claim 1 , and silicones claim 1 , particularly acrylates claim 1 , urethanes claim 1 , styrenes claim 1 , and silicones.7. The method according to claim 1 , wherein in step (a) said solid materialis obtained by a dry synthetic process, including gas phase reaction and dry milling; orby a wet synthetic process; oris in ...

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Номер записи: 59
27-07-2017 дата публикации

QUANTUM DOT SOLAR CELL

Номер: US20170213924A1
Автор: Fujita Kohei, KUBO Shintaro, MURAMOTO Kazuya, Nakayama Toru, NINOMIYA Hisakazu
Принадлежит: KYOCERA CORPORATION

There is provided a quantum dot solar cell having a high optical absorption coefficient. The quantum dot solar cell includes a quantum dot layer including a plurality of quantum dots wherein the quantum dot layer includes a first quantum dot layer A having an index σ/x of 5% or more, wherein x is an average particle size, and σ is a standard deviation. The quantum dot layer also includes a second quantum dot layer B that is provided on the light entrance surface and/or the light exit surface of the first quantum dot layer A and has an average particle size and an index σ/x smaller than those of the first quantum dot layer A. 1. A quantum dot solar cell comprising:a quantum dot layer comprising a plurality of quantum dots,the quantum dot layer comprising a first quantum dot layer having an index σ/x of 5% or more, wherein x is an average particle size of the quantum dots, σ is a standard deviation of the quantum dots, and the index σ/x indicates variations in particle size.2. The quantum dot solar cell according to claim 1 , wherein the quantum dots have an outer shape selected from the group consisting of a spherical shape claim 1 , a polyhedral shape claim 1 , a columnar shape claim 1 , an oval-spherical shape claim 1 , and a tetrapod shape.3. The quantum dot solar cell according to claim 2 , wherein the quantum dots in the first quantum dot layer include deformed quantum dots having a partially deformed contour.4. The quantum dot solar cell according to claim 3 , wherein the quantum dots have a spherical outer shape claim 3 , and the deformed quantum dots have a spherical outer shape having a concave portion on a surface.5. The quantum dot solar cell according to claim 4 , wherein the deformed quantum dots include deformed quantum dots different in a maximum length of an opening of the concave portion.6. The quantum dot solar cell according to claim 3 , wherein the quantum dots have a polyhedral outer shape claim 3 , and the deformed quantum dots have a polyhedral ...

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Номер записи: 60
03-08-2017 дата публикации

SULFONATED AMINOMETHYLATED CHELATE RESINS

Номер: US20170216833A1
Автор: Klipper Reinhold, NEUFEIND Stefan
Принадлежит: LANXESS DEUTSCHLAND GMBH

The invention relates to sulfonated aminomethylated chelate resins, to a method for producing same, to the use thereof for obtaining and purifying metals, in particular rare earth metals, from aqueous solutions and organic liquids, and for producing highly pure silicon. 2. The chelating resin as claimed in claim 1 , wherein:{'sub': 1', '2', '2', '2', '2, 'sup': 1', '2, 'Rand Rindependently of one another, are —CHPO(OX), —CHPO(OH)OXor hydrogen; and'}{'sup': 1', '2, 'Xand X, independently of one another, represent hydrogen, sodium or potassium.'}3. A process for preparing the chelating resin as claimed in claim 1 , the process comprising: at least one monovinylaromatic compound and at least one polyvinylaromatic compound, and', 'at least one initiator or an Initiator combination, 'a) converting monomer droplets composed ofinto a bead polymer,{'sub': '3', 'b) phthalimidomethylating and sulfonating the bead polymer with phthalimide in the presence of oleum to produce phthalimidomethylated, sulfonated bead polymer, wherein the amount of free SOis at least 0.69 mol based on 1 mol of phthalimide,'}c) converting the phthalimidomethylated, sulfonated bead polymer into aminomethylated, sulfonated bead polymer, andd) reacting the aminomethylated, sulfonated bead polymer to afford chelating resins comprising functional groups of structural element (I).4. The process for preparing the chelating resin as claimed in claim 3 , wherein the bead polymers in step a) are prepared in monodisperse form and thus monodisperse chelating resins are prepared.5. The process for preparing the chelating resin as claimed in claim 3 , wherein the amount of free SOin step b) is between 0.69 and 1.5 mol based on 1 mol of phthalimide.6. The process for preparing the chelating resin as claimed in claim 3 , wherein the amount of free SOin step b) is between 0.69 and 1.2 mol based on 1 mol of phthalimide.7. A chelating resin comprising functional groups of structural element (I) prepared as claimed in . ...

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Номер записи: 61
03-08-2017 дата публикации

INORGANIC HALIDE PEROVSKITE NANOWIRES AND METHODS OF FABRICATION THEREOF

Номер: US20170217785A1
Автор: Dou Letian, Lai Minliang, Wong Andrew B., Yang Peidong, Zhang Dandan
Принадлежит: The Regents of the University of California

This disclosure provides systems, methods, and apparatus related to inorganic halide perovskite nanowires. In one aspect, a first solution comprising cesium oleate or rubidium oleate in a first organic solvent is provided. A second solution comprising a lead halide and a surfactant in a second organic solvent is provided. The halide is selected from a group consisting of chlorine, bromine, and iodine. The first solution and the second solution are mixed. A reaction between the cesium oleate or the rubidium oleate and the lead halide forms a plurality of nanowires comprising an inorganic lead halide perovskite. 1. A nanowire comprising:{'sub': '3', 'an inorganic halide perovskite comprising ABX, A being Cs or Rb, B being Sn or Pb, and X being selected from a group consisting of Cl, Br, I, a combination of Br and Cl, and a combination of Br and I.'}2. The nanowire of claim 1 , wherein the nanowire has a cross-sectional dimension of less than 1000 nanometers.3. The nanowire of claim 1 , wherein the nanowire comprises a single crystal.4. The nanowire of claim 1 , wherein the nanowire has an orthorhombic crystal structure.5. The nanowire of claim 1 , wherein the nanowire has a length of about 100 nanometers to 30 microns.6. A method comprising:(a) providing a first solution comprising cesium oleate or rubidium oleate in a first organic solvent;(b) providing a second solution comprising a lead halide and a surfactant in a second organic solvent, the halide being selected from a group consisting of chlorine, bromine, and iodine; and(c) mixing the first solution and the second solution, a reaction between the cesium oleate or the rubidium oleate and the lead halide forming a plurality of nanowires comprising an inorganic lead halide perovskite.7. The method of claim 6 , wherein the first organic solvent comprises octadecene (ODE) claim 6 , and wherein the second organic solvent comprises a solvent selected from a group consisting of ODE and oleylamine.8. The method of claim ...

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Номер записи: 62
18-07-2019 дата публикации

Fluorescent Material and Method For Making the Same

Номер: US20190218108A1
Автор: Chen Fu-Shan, Kuo Kuo-Huai, WANG Yu-Pu
Принадлежит:

A fluorescent material includes at least one fluorescent compound having a structure formula of ABXYas defined in the specification, a plurality of NH group-containing ions bound to the fluorescent compound through protonation of amine groups of an amine composition, and a plurality of COO group-containing ions bound to the fluorescent compound through deprotonation of carboxyl groups of an acid composition. The amine composition has a total hydrogen bonding Hansen solubility parameter (Tδ) ranges from 2.4 to 3.3 (cal/cm), and the acid composition has a total polar Hansen solubility parameter (Tδ) which is less than 1.4 (cal/cm). 2. The fluorescent material according to claim 1 , wherein said amine group-containing compound is selected from the group consisting of (alkyl)polyetheramine claim 1 , and polyetherdiamine.3. The fluorescent material according to claim 1 , wherein said carboxyl group-containing compound is selected from the group consisting of olefin acid claim 1 , a copolymer of (meth)acrylic acid and (meth)acrylic acid alkyl ester claim 1 , and a copolymer of (meth)acrylic acid claim 1 , (meth)acrylic acid alkyl ester claim 1 , and hydroxyalkyl acrylate.4. The fluorescent material according to claim 1 , wherein the fluorescent compound is selected from the group consisting of CsPbBr claim 1 , CsPbCl claim 1 , CsPbl claim 1 , CsPbClBr claim 1 , and CsPbBrI.5. The fluorescent material according to claim 4 , wherein said amine group-containing compound is polyetherdiamine.6. The fluorescent material according to claim 4 , wherein said amine group-containing compound is polyetheramine or alkyl polyetheramine.7. The fluorescent material according to claim 4 , wherein said carboxyl group-containing compound is a copolymer of (meth)acrylic acid and (meth)acrylic acid alkyl ester.8. A method for making the fluorescent material according to claim 1 , comprising the steps of:{'sub': 2', '2', '2, '(i) heating and reacting a mixture of the amine composition, the ...

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Номер записи: 63
18-08-2016 дата публикации

System and method for making quantum dots

Номер: US20160237344A1
Автор: Ahmed L. ABDELHADY, Ala&#39;a EL-BALLOULI, Jun Pan, Kristian Rahbek KNUDSEN, Osman M. BAKR
Принадлежит: King Abdullah University of Science and Technology KAUST

Embodiments of the present disclosure provide for methods of making quantum dots (QDs) (passivated or unpassivated) using a continuous flow process, systems for making QDs using a continuous flow process, and the like. In one or more embodiments, the QDs produced using embodiments of the present disclosure can be used in solar photovoltaic cells, bio-imaging, IR emitters, or LEDs.

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Номер записи: 64
18-08-2016 дата публикации

Use of sulfur and selenium compounds as precursors to nanostructured materials

Номер: US20160237345A1
Автор: Jonathan S. Owen, Mark P. HENDRICKS, Michael P. CAMPOS
Принадлежит: Columbia University of New York

The presently disclosed subject matter provides processes for preparing nanocrystals, including processes for preparing core-shell nanocrystals. The presently disclosed subject matter also provides sulfur and selenium compounds as precursors to nanostructured materials. The presently disclosed subject matter also provides nanocrystals having a particular particle size distribution.

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Номер записи: 65
19-08-2021 дата публикации

ALL SOLID FLUORIDE ION BATTERY

Номер: US20210257614A1
Автор: Ide Kazuto
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An object of the present disclosure is to provide an all solid fluoride ion battery that has a favorable capacity property. The present disclosure achieves the object by providing an all solid fluoride ion battery comprising: a cathode layer, an anode layer, and a solid electrolyte layer formed between the cathode layer and the anode layer; wherein the anode layer includes a metal fluoride containing an M1 element, an M2 element, and a F element; the M1 element is a metal element that fluorination and defluorination occur at a potential, versus Pb/PbF, of −2.5 V or more; the M2 element is a metal element that neither fluorination nor defluorination occur at a potential, versus Pb/PbF, of −2.5 V or more; and the M2 element is a metal element that, when in a form of a fluoride, fluoride ion conductivity is 1×10S/cm or more at 200° C. 1. An all solid fluoride ion battery comprising: a cathode layer , an anode layer , and a solid electrolyte layer formed between the cathode layer and the anode layer;wherein the anode layer includes a metal of an M1 element, and a metal fluoride containing an M2 element and a F element, in which the metal of the M1 element and the metal fluoride are dispersed at an atomic level;{'sub': '2', 'the M1 element is a metal element that fluorination and defluorination occur at a potential, versus Pb/PbF, of −2.5 V or more;'}{'sub': '2', 'the M2 element is a metal element that neither fluorination nor defluorination occur at a potential, versus Pb/PbF, of −2.5 V or more; and'}{'sup': '−4', 'the metal fluoride containing the M2 element and the F element has fluoride ion conductivity of 1×10S/cm or more at 200° C.'}2. The all solid fluoride ion battery according to claim 1 , wherein the M1 element is a metal element that fluorination and defluorination occur at a potential claim 1 , versus Pb/PbF claim 1 , of −1.5 V or less.3. The all solid fluoride ion battery according to claim 1 , wherein the M1 element contains at least one of a La element and ...

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Номер записи: 66
16-07-2020 дата публикации

Method to Synthesize Nanoparticle Supercrystals

Номер: US20200223694A1
Автор: Bian Kaifu, Fan Hongyou
Принадлежит:

Highly ordered arrays of 3D faceted nanoparticle supercrystals are formed by self-assembly with controlled nanoparticle packing and unique facet dependent optical property by using a binary solvent diffusion method. The binary diffusion results in supercrystals whose size and quality are determined by initial nanoparticle concentration and diffusion speed. The supercrystal solids display unique facet-dependent surface plasmonic and surface-enhanced Raman characteristics. The supercrystals have potential applications in areas such as optics, electronics, and sensor platforms. 1. A method to synthesize nanoparticle supercrystals , comprising:providing a colloidal suspension of ligand-capped nanoparticles in a non-polar solvent, andcounter-diffusing the non-polar solvent and the polar anti-solvent into each other, thereby slowly precipitating nanoparticle supercrystals from the colloidal suspension.2. The method of claim 1 , wherein the nanoparticles comprise metal claim 1 , semiconductor claim 1 , or magnetic nanoparticles.3. The method of claim 2 , wherein the nanoparticles comprise gold nanoparticles.4. The method of claim 2 , wherein the nanoparticles comprise Ag claim 2 , CdSe claim 2 , PbS claim 2 , PbSe claim 2 , FePt claim 2 , or FeOnanoparticles.5. The method of claim 1 , wherein the ligand comprises an alkyl thiol.6. The method of claim 5 , wherein the alkyl thiol comprises dodecanethiol.7. The method of claim 1 , wherein the ligand comprises an alkyl amine or an alkyl acid.8. The method of claim 1 , wherein the non-polar solvent comprises toluene.9. The method of claim 1 , wherein the non-polar solvent comprises hexane claim 1 , benzene claim 1 , or xylene.10. The method of claim 1 , wherein the polar anti-solvent comprises isopropanol.11. The method of claim 1 , wherein the polar anti-solvent comprises ethanol claim 1 , methanol claim 1 , or tetrahydrofuran.12. The method of claim 1 , wherein the counter-diffusing comprises adding the polar anti-solvent on ...

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Номер записи: 67
26-08-2021 дата публикации

ABX3 PEROVSKITE PARTICLES AND THEIR APPLICATION IN REVERSE MODE CONTROLLING PHOTO-FLUX

Номер: US20210263386A1
Автор: Li Yanan, Liang Bin, Xiao Shuyong, Zhang Dawei, ZHANG Yuzhe, Zhao Shiyong
Принадлежит: ZHEJIANG JINGYI NEW MATERIAL TECHNOLOGY CO. LTD

A reverse mode light valve, the manufacture of a light control device and a method of controlling light transmittance by using of the reverse mode light valve, the reverse mode light valve containing ABXperovskite particles (200) suspended in a liquid suspension (300) can control light transmittance in a higher light transmittance when the power is turned off (OFF state) and lower light transmittance when the power is turned on (ON state). In the ABXperovskite particles (200), A is at least one of Cs, CHNH, and Rb, B is at least one of Pb, Ge, and Sn, and X is at least one of Cl, Br, and I. 1. A reverse mode light valve , comprising a first layer of a transparent conductive substrate; an active layer containing ABXperovskite particles suspended in a liquid suspension; and a second layer of a transparent conductive substrate.2. The reverse mode light valve as recited in claim 1 , which has a higher light transmittance on OFF-state and a lower light transmittance on ON-state.3. The reverse mode light valve as recited in claim 1 , wherein A is at least one of Cs claim 1 , CHNH claim 1 , and Rb claim 1 , B is at least one of Pb claim 1 , Ge claim 1 , and Sn claim 1 , and X is at least one of Cl claim 1 , Br claim 1 , and I.4. The reverse mode light valve as recited in claim 3 , wherein A is at least one of Cs and CHNH claim 3 , B is Pb claim 3 , and X is at least one of Brand I.5. The reverse mode light valve as recited in claim 1 , wherein the ABXperovskite particles have a non-spherical morphology.6. The reverse mode light valve as recited in claim 5 , wherein the ABXperovskite particles have a morphology selected from at least one of the nanorods (one-dimensional); nanosheets (two-dimensional); cuboids claim 5 , and irregular (three-dimensional) particles.7. The reverse mode light valve as recited in claim 6 , wherein the ABXperovskite particles have a morphology of nanosheets having a length of about 50 nm-2000 nm claim 6 , and a thickness of 5 nm-100 nm.8. The ...

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Номер записи: 68
26-08-2021 дата публикации

PEROVSKITE LIGHT-EMITTING DEVICE

Номер: US20210265574A1
Автор: CHO Himchan, IM Sanghyuk, Kim Young-Hoon, Lee Tae-Woo
Принадлежит:

A light-emitting layer for a halide perovskite light-emitting device, a method for manufacturing the same and a perovskite light-emitting device using the same are disclosed. The light-emitting layer can be manufactured by forming a first nanoparticle thin film by coating, on a member, a solution comprising halide perovskite nanoparticles having a halide perovskite nanocrystalline structure. Thereby, a nanoparticle light emitter has therein a halide perovskite having a crystal structure in which FCC and BCC are combined; and can show high color purity. In addition, it is possible to improve the luminescence efficiency and luminance of a device by making perovskite as nanoparticles and then introducing the same into a light-emitting layer. 1. A particle comprising:one or more nanocrystals of a perovskite having a two-dimensional structure that is configured to emit light by their crystal structure; anda plurality of ligands attached to the one or more nanocrystals and configured to make the one or more nanocrystals more dispersible in a medium than without such ligands.2. The particle of claim 1 , wherein the one or more nanocrystals have a nanocrystal size greater than 10 nm and smaller than 900 nm.3. The particle of claim 1 , wherein the particle was mixed with at least one organic semiconductor.4. The particle of claim 1 , wherein the plurality of ligands attached to the one or more nanocrystals during particle synthesis are substituted with a plurality of ligands with different chemical structures after synthesis thereof.5. The particle of claim 2 , wherein the plurality ligands comprises one selected from the group consisting of alkyl halides claim 2 , carboxylic acid claim 2 , acetic acid claim 2 , 5-aminosalicylic acid claim 2 , an acrylic acid claim 2 , L-aspentic acid claim 2 , 6-bromohexanoic acid claim 2 , a bromoacetic acid claim 2 , a dichloro acetic acid claim 2 , ethylenediaminetetraacetic acid claim 2 , isobutyric acid claim 2 , itaconic acid claim 2 ...

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Номер записи: 69
10-09-2015 дата публикации

Porous solid phase for rapidly isolating biological molecules for nucleic acid amplification reaction from biological sample, and use thereof

Номер: US20150252356A1
Автор: Daeho Park, Guem Suk In, Hong Soo Choi, Jeong Soo Kim, Jung-Heon Han, Junsung Shin
Принадлежит: BIO CUBE SYSTEM Co Ltd

The present invention provides a method for rapidly ascertaining whether or not a target sequence exists in a biological sample by: rapidly isolating biological samples for a nucleic acid amplification reaction from the biological sample by using a porous solid phase capable of rapidly sucking biological samples present in a biological sample into pores; and amplifying the same.

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Номер записи: 70
30-08-2018 дата публикации

CHALCOGENIDE MATERIALS, CHALCOGENIDE-BASED MATERIALS, AND METHODS OF MAKING AND USING THE SAME

Номер: US20180244534A1
Автор: Gupta Satyajit, Pathak Pawan, Subramanian Vaidyanathan
Принадлежит: Board of Regents of the Nevada System of Higher Education, on Behalf of the University of Nevada,

Disclosed herein are embodiments of chalcogenide materials and chalcogenide-based materials that exhibit improved light-driven properties and performance in comparison to conventional materials. Also disclosed herein are embodiments of cost- and time-efficient methods of making such materials. 1. A chalcogenide material having a formula MXwherein M is selected from Cd , Cu , Pb , or Zn; X is a chalcogen selected from S , Se , Te , or combinations thereof; and n is 1 or 2; wherein the chalcogenide material exhibits high crystallinity and is chalcogen-deficient.2. The chalcogenide material of claim 1 , wherein M is Cd or Pb claim 1 , X is S claim 1 , and n is 1.3. The chalcogenide material of claim 1 , wherein the chalcogenide material is chalcogen-deficient such that it comprises from greater than zero atomic % of the chalcogen to less than 1 atomic % of the chalcogen.4. The chalcogenide material of claim 1 , wherein the chalcogenide material is chalcogen-deficient such that it comprises from 0.1 atomic % of the chalcogen to less than 0.95 atomic % of the chalcogen.5. The chalcogenide material of claim 1 , wherein the high crystallinity of the chalcogenide material comprises a high intensity ratio ranging from 2 to 5.6. (canceled)7. The chalcogenide material of claim 1 , wherein the chalcogenide material is CdS or PbS claim 1 , and wherein the CdS or PbS exhibits high crystallinity comprising an intensity ratio of 3 to 4 and comprises greater than zero atomic % sulfide to less than 1 atomic % sulfide.8. The chalcogenide material of claim 1 , wherein the chalcogenide material is CdS and the CdS exhibits high crystallinity of about 3.90 to about 4.0 and comprises 0.81 to 0.85 atomic % sulfide.9. (canceled)10. A composition for producing a chalcogenide material or a chalcogenide-based material claim 1 , comprising a chalcogenide precursor having a formula MLLwherein M is selected from Cd claim 1 , Cu claim 1 , Pb claim 1 , or Zn and each of Land Lindependently is ...

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Номер записи: 71
08-08-2019 дата публикации

PEROVSKITE MATERIALS AND METHODS OF MAKING THE SAME

Номер: US20190241802A1
Автор: Anderson Nicholas Charles, Bliss Taylor Sierra, Hautzinger Matthew Peter, NEALE Nathan Richard, WHEELER Lance Michael
Принадлежит:

The present disclosure relates to a perovskite sheet that includes two outer layers, each including A′X′; and a first layer that includes BX, where B is a first cation, A′ is a second cation, X is a first anion, X′ is a second anion, and the first BXlayer is positioned between the two outer layers. 1. A perovskite sheet comprising:two outer layers, each comprising A′X′; and{'sub': '2', 'a first layer comprising BX, whereinB is a first cation, A′ is a second cation, X is a first anion, X′ is a second anion, and{'sub': '2', 'the first BXlayer is positioned between the two outer layers.'}2. The perovskite sheet of claim 1 , further comprising:a first layer comprising AX; and{'sub': '2', 'a second BXlayer, whereinA is a third cation,{'sub': '2', 'the second BXlayer is positioned between the outer layers, and'}{'sub': 2', '2, 'the first AX layer is positioned between the first BXlayer and the second BXlayer.'}3. The perovskite sheet of claim 2 , further comprising:a second AX layer, and{'sub': '2', 'a third BXlayer, wherein{'sub': '2', 'the second AX layer and the third BXare positioned between the outer layers,'}{'sub': '2', 'each outer layer is adjacent to a BXlayer, and'}{'sub': '2', 'the BXlayers and AX layers alternate positions in the sheet.'}4. The perovskite sheet of claim 3 , further comprising:{'sub': '2', 'n BXlayers, whereinn is greater than three, and{'sub': 2', '2', 'n-1', 'n', '3n-1', '2, 'the outer layers, the BXlayers, and the AX layers result in a stoichiometry defined by A′ABXX′.'}5. The perovskite sheet of claim 1 , wherein A comprises at least one of an alkylammonium cation claim 1 , formamidinium claim 1 , H claim 1 , or Cs.6. The perovskite sheet of claim 1 , wherein B comprises at least one of lead claim 1 , tin claim 1 , or germanium.7. The perovskite sheet of claim 1 , wherein X comprises at least one of fluorine claim 1 , chlorine claim 1 , bromine claim 1 , or iodine.8. The perovskite sheet of claim 1 , wherein X′ comprises a charged form of ...

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Номер записи: 72
07-09-2017 дата публикации

DIMENSIONALLY FOCUSED NANOPARTICLE SYNTHESIS METHODOLOGY

Номер: US20170253493A1
Автор: HANRATH Tobias, NEVERS Douglas, Robinson Richard D., WILLIAMSON Curtis
Принадлежит:

A methodology for synthesizing a nanoparticle batch, such as but not limited to a metal chalcogenide nanoparticle batch and further such as but not limited to a metal sulfide nanoparticle batch is predicated upon an expectation and observation that at elevated concentrations of at least one reactant material within a heat-up nanoparticle batch synthesis method, the resulting nucleated batch comprises nanoparticles that may be dimensionally focused to provide a substantially monodisperse nanoparticle batch. The embodied methodology is also applicable to a continuous reactor. The embodied methodology also considers viscosity as a dimensionally focusing result effective variable. 1. A nanoparticle synthesis method comprising: a first reactant material at a first concentration; and', 'a second reactant material at a second concentration, to provide a reactant composition; and, 'mixing together at a first temperature at leastthermally adjusting the reactant composition to a second temperature to provide a nucleated virgin nanoparticle population within a nucleated reactant composition, wherein at least one of the first concentration and the second concentration is sufficiently high to dimensionally focus the nucleated virgin nanoparticle population to a substantially monodisperse nanoparticle population when thermally soaking the nucleated virgin nanoparticle population in the nucleated reactant composition.2. The method of wherein the nanoparticle synthesis method comprises a batch nanoparticle synthesis method.3. The method of wherein the nanoparticle synthesis method comprises a continuous nanoparticle synthesis method.4. The method of wherein the nanoparticle batch comprises a material selected from the group consisting of metal carbide materials claim 1 , metal nitride materials and metal oxide materials.5. The method of wherein the reactant composition also comprises a diluent.6. The method of wherein the thermally soaking of the virgin nanoparticle batch is ...

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Номер записи: 73
13-09-2018 дата публикации

Thermoelectric Materials Employing Cr-Doped N-Type and PbSe and PbTe1-xSex and Methods of Manufacturing

Номер: US20180257937A1
Автор: Chere Eyob Kebede, Ren Zhifeng, Zhang Qian
Принадлежит: UNIVERSITY OF HOUSTON SYSTEM

Systems and methods discussed herein relate to Pb—Se based thermoelectric materials for use in thermoelectric applications, the thermoelectric materials may comprise one or more dopants and are ball-milled into a powder and hot-pressed to form pressed components. The pressed components comprise improved room temperature properties, including a ZT above about 0.5 from about 300 K to about 780 K, which leads to improved device efficiency and overall function. 1. A thermoelectric device comprising: lead (Pb);', 'selenium (Se);', {'sub': 1-x', 'x, 'and at least one other component A according to the formula PbASe.'}], 'a thermoelectric material comprising2. The thermoelectric device of claim 1 , wherein A comprises at least one of titanium (Ti) claim 1 , vanadium (V) claim 1 , chromium (Cr) claim 1 , niobium (Nb) claim 1 , and molybdenum (Mo).3. The thermoelectric device of claim 1 , wherein x is greater than 0 and less than or equal to 0.02.4. The thermoelectric device of claim 1 , wherein the thermoelectric material is formed by hot-pressing and exhibits a ZT of greater than about 0.5 from about 300 K to about 900 K subsequent to the hot-pressing.5. The thermoelectric device of claim 1 , wherein the thermoelectric material is formed by hot-pressing and exhibits a ZT of greater than 1.0 from about 300 K to about 900 K subsequent to the hot-pressing.6. A method of fabricating a thermoelectric material comprising:{'sub': x', '1-x', '1-y', 'y, 'hot-pressing a milled powder comprising lead (Pb), selenium (Se), tellurium (Te), and a dopant (A) according to the formula according to the formula APbTeSeto form a thermoelectric material, wherein the thermoelectric material comprises a ZT above about 0.5 from about 300 K to about 780 K.'}7. The method of claim 6 , wherein A comprises at least one of titanium (Ti) claim 6 , vanadium (V) claim 6 , chromium (Cr) claim 6 , niobium (Nb) claim 6 , and molybdenum (Mo).8. The method of claim 6 , wherein X is greater than 0 and less than ...

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Номер записи: 74
06-08-2020 дата публикации

Perovskite luminescent nanocrystal, light emitting device, and manufacturing method for perovskite luminescent nanocrystal

Номер: US20200248070A1
Автор: Hung-Chia Wang, Hung-Chun TONG, Ru-Shi Liu, Tzong-Liang Tsai, Yu-Chun Lee, Yu-Jui TSENG, Zhen BAO
Принадлежит: Lextar Electronics Corp

A perovskite luminescent nanocrystal has a chemical formula represented by: Cs 4 BX 6 , wherein B includes one or more selected from the group consisting of Ge, Pb, Sn, Sb, Bi, Cu, and Mn, and X includes one or more selected from the group consisting of Cl, Br, and I, wherein the Cs 4 BX 6 perovskite luminescent nanocrystal has a pure phase, and a molar ratio of Cs to B (Cs/B) in the Cs 4 BX 6 perovskite luminescent nanocrystal is greater than 1 and less than 4.

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Номер записи: 75
13-09-2018 дата публикации

Lead-carbon metal composite material for electrodes of lead-acid batteries and method of synthesizing same

Номер: US20180261831A1
Автор: Andrey Nikolaevich ELSHIN, Liudmila Avgustovna ELSHINA
Принадлежит: Varvara Andreevna ELSHINA

The invention is directed to a radical improvement of the specific electrochemical and corrosive characteristics of a lead-acid battery without a drastic change in the process of battery producing. The lead-carbon metal composite material contains from 0.1 to 10% by weight of carbon, lead is the remainder, while the structure of the material contains carbon allotropic modifications from graphene to graphite. The method for material synthesizing is characterized in that lead or its alloys are melted in a melt of alkaline and/or alkaline earth metal halides containing from 1 to 20 wt. % of metal carbides or non-metals with a particle size of 100 nm to 200 μm, or solid organic substances, for 1-5 hours at a temperature of 700-900° C.

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Номер записи: 76
13-08-2020 дата публикации

SCINTILLATION MATERIALS

Номер: US20200255724A1
Автор: BAKR Osman M., Mohammed Omar F., Zhang Yuhai
Принадлежит:

Embodiments of the present disclosure generally describe scintillation materials, including colloidal scintillation materials and solid scintillation materials, methods of preparing the scintillation materials, applications of the scintillation materials, methods of using the scintillation materials, and the like. 1. An X-ray detection system , comprising:a scintillation material for absorbing X-rays and emitting visible photons, wherein the scintillation material is deposited on a substrate as a thin film halide perovskite superstructure; anda detection device for absorbing the visible photons emitted by the scintillation material.2. The system of claim 1 , wherein the halide perovskite superstructure comprises a plurality of halide perovskite nanosheets that have self-assembled into stacked layers of halide perovskite nanosheets.3. The system of claim 1 , wherein the halide perovskite superstructure comprises a non-uniform distribution of nanosheet thicknesses.4. The system of claim 1 , wherein the halide perovskite superstructure comprises thin and thick halide perovskite nanosheets.5. The system of claim 1 , wherein an energy transfer between the thin and thick halide perovskite nanosheets within the stacked layers of halide perovskite nanosheets increases an efficiency and sensitivity of the scintillation material for X-ray detection.6. The system of claim 1 , wherein the halide perovskite superstructure has the formula:{'sub': '3,', 'AMXwherein A is an inorganic or organic cation, M is a metal cation, and X is a halide.'}7. The system of claim 1 , wherein the halide perovskite superstructure has the formula: CsPbX claim 1 , wherein X is Cl claim 1 , Br claim 1 , or I.8. The system of claim 1 , wherein the scintillation material is a crack-free thin film having an area of about 80 cmor less.9. The system of claim 1 , wherein the thin film has a tunable thickness in the range of about 5 μm to about 25 μm.10. The system of claim 1 , wherein the wavelength of the ...

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Номер записи: 77
04-11-2021 дата публикации

METHOD FOR MAKING INORGANIC PEROVSKITE NANOCRYSTALS FILM AND APPLICATIONS

Номер: US20210340021A1
Автор: MITRA Somak, PAK Yusin, ROQAN Iman, XIN Bin, Zhang Yuhai
Принадлежит:

A method for forming CsPbBrperovskite nanocrystals into a two-dimensional (2D) nanosheet includes providing CsPbBrperovskite nanocrystals; mixing the CsPbBrperovskite nanocrystals into a mixture of a first solvent and a second solvent, to form a solution of the CsPbBrperovskite nanocrystals, the first solvent, and the second solvent; and forming an optoelectronic device by patterning the CsPbBrperovskite nanocrystals into a nanosheet, between first and second electrodes. The first solvent is selected to evaporate before the second solvent. 1. A method for forming CsPbBrperovskite nanocrystals into a two-dimensional (2D) nanosheet , the method comprising:{'sub': '3', 'providing CsPbBrperovskite nanocrystals;'}{'sub': 3', '3, 'mixing the CsPbBrperovskite nanocrystals into a mixture of a first solvent and a second solvent, to form a solution of the CsPbBrperovskite nanocrystals, the first solvent, and the second solvent; and'}{'sub': '3', 'forming an optoelectronic device by patterning the CsPbBrperovskite nanocrystals into a nanosheet, between first and second electrodes,'}wherein the first solvent is selected to evaporate before the second solvent.2. The method of claim 1 , wherein the first solvent is selected to be hydrophilic to a substrate of the optoelectronic device and the first and second electrodes claim 1 , and the second solvent is selected to be hydrophilic only to the first and second electrodes.3. The method of claim 1 , wherein the first solvent is hexane and the second solvent is toluene.4. The method of claim 1 , further comprising:drop-casting the solution on a substrate of the optoelectronic device, over and between the first and second electrodes.5. The method of claim 4 , further comprising:{'sub': 3', '3, 'fully evaporating the first solvent to form a drifting CsPbBrnanocrystals nanosheet by self-assembly of the CsPbBrnanocrystals.'}6. The method of claim 5 , further comprising:{'sub': '3', 'fully evaporating the second solvent to form the ...

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Номер записи: 78
22-08-2019 дата публикации

LIGHT-EMITTING LAYER FOR PEROVSKITE LIGHT-EMITTING DEVICE, METHOD FOR MANUFACTURING SAME, AND PEROVSKITE LIGHT-EMITTING DEVICE USING SAME

Номер: US20190259962A1
Автор: CHO Himchan, IM Sanghyuk, Kim Young-Hoon, Lee Tae-Woo
Принадлежит:

Provided are: a light-emitting layer for a perovskite light-emitting device; a method for manufacturing the same; and a perovskite light-emitting device using the same. The method of the present invention for manufacturing a light-emitting layer for an organic and inorganic hybrid perovskite light-emitting device comprises a step of forming a first nanoparticle thin film by coating, on a member for coating a light-emitting layer, a solution comprising organic and inorganic perovskite nanoparticles including an organic and inorganic perovskite nanocrystalline structure. Thereby, a nanoparticle light emitter has therein an organic and inorganic hybrid perovskite having a crystalline structure in which FCC and BCC are combined; forms a lamella structure in which an organic plane and an inorganic plane are alternatively stacked; and can show high color purity since excitons are confined to the inorganic plane. In addition, it is possible to improve the luminescence efficiency and luminance of a device by making perovskite as nanoparticles and then introducing the same into a light-emitting layer. 1. A particle comprising:one or more nanocrystals of a perovskite having a nanocrystal size greater than 10 nm and smaller than 900 nm that is configured to emit light by their intrinsic crystal structure rather than their quantum size effect, wherein the wavelength of the light emitted from the perovskite does not change substantially over the nanocrystal size thereof unlike a quantum dot that substantially changes a wavelength of light emitted therefrom over a nanocrystal size thereof; anda plurality of ligands attached to the one or more nanocrystals and configured to make the one or more nanocrystals more dispersible than without such ligands in a medium.2. The particle of claim 1 , wherein the plurality of ligands attached to the one or more nanocrystals surround the one or more nanocrystals.3. The particle of claim 1 , wherein the particle was mixed with at least one ...

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Номер записи: 79
21-09-2017 дата публикации

METHOD FOR RECOVERING LEAD OXIDE FROM WASTE LEAD PASTE

Номер: US20170271725A1
Автор: BIAN Yaru, Niu Yinjian, Pan Junqing, Sun Yanzhi
Принадлежит:

A method for recovering lead oxide from a pre-desalted lead paste, comprising the following steps: a. dissolving the pre-desalted lead plaster by using a complexing agent solution, and making all of PbO therein react with the complexing agent to generate lead complexing ions, obtaining a lead-containing solution and a filter residue; b. adding a precipitant to the lead-containing solution, and then the precipitant reacting with the lead complexing ions to generate a lead salt precipitate and the regenerated complexing agent; c. calcining the lead salt precipitate to obtain lead oxide and regenerate the precipitant. The final recovery rate of lead oxide of the method can reach 99% or more.

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Номер записи: 80
20-08-2020 дата публикации

A Method of Pretreatment and Bromine Recovery of PCB Incineration Ash

Номер: US20200262712A1
Автор: Li Bin, PAN Dean, Wu Yufeng, Zuo Tieyong
Принадлежит:

A method of pretreatment and bromine recovery of PCB Incineration ash is disclosed that relates to the field of comprehensive recovery of valuable metals by full wet method, especially relates to a method of valuable metals and bromine recovery, precious metals enrichment in pretreatment process of PCB Incineration ash. The major steps includes alkali leaching, Cu extraction back-extraction, neutralization-precipitation to separate, Bromine evaporative crystallization, regeneration, acid pickling, Zn evaporative crystallization, removal of Zn and Cu. Compared with the traditional comprehensive recovery process of ash, the invention can separate bromine from ash and recover valuable metals such as copper, zinc and lead with the maximum extent, at the same time, the enrichment of silver and other precious metals is beneficial to the subsequent recovery of precious metals. It has high added recovery value and no tailless discharge. 1. A method of pretreatment and Bromine recovery of printed circuit board Incineration ash , comprising the steps of: [{'sup': '3', 'treating the printed circuit board Incineration ash with an alkali leaching solution for 1 to 2 hours, wherein the alkali leaching solution is made of a mixture of sodium hydroxide and ammonia, wherein the concentration of sodium hydroxide is 5˜20% by mass, and the concentration of ammonia is 5˜20% by mass, the solid-liquid ratio of ash to the leaching solution is 1:5˜1:10 Kg/L, the leaching temperature is 35˜55° C., meanwhile keep blowing air with agitation, wherein the blast air volume per cubic meter leaching solution is 0.01˜0.1 m/min;'}, 'stopping blowing the air and continue agitating, adding 1˜3 g copper powder into every liter of the leaching solution;', 'carrying out the reaction for 10˜30 minutes; and', 'performing filtration to obtain a mixed alkali leaching slag and a mixed alkali leaching solution;, '(1) alkali leaching, further comprising the steps of extracting copper from the mixed alkali ...

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Номер записи: 81
20-08-2020 дата публикации

Method of Preparing Carbon-Graphene-Lead Composite Particles

Номер: US20200262713A1
Автор: Chen Zhongwei, MAO Zhiyu
Принадлежит:

Provided herein is a method of preparing carbon-graphene-lead composite particles, comprising the steps of forming a dispersion of lead particles, graphene particles and cellulose in an aqueous solution, spray drying the dispersion to aggregate the lead particles, graphene particles and cellulose to form cellulose-graphene-lead composite particles, and heating the cellulose-graphene-lead composite particles, to carbonize the cellulose to result in the formation of the carbon-graphene-lead composite particles. 1. A method of preparing carbon-graphene-lead composite particles , comprising the steps of:a) forming a dispersion of lead particles, graphene particles and cellulose in an aqueous solution;b) spray drying the dispersion to aggregate the lead particles, graphene particles and cellulose to form cellulose-graphene-lead composite particles;c) heating the cellulose-graphene-lead composite particles, to carbonize the cellulose to result in the formation of the carbon-graphene-lead composite particles.2. The method of claim 1 , wherein the lead particles have a particle size of about 1 μm to about 5 μm.3. The method of claim 1 , wherein the graphene particles have a particle size of about 300 nm to about 800 nm.4. The method of claim 1 , wherein the cellulose is in the form of cellulose fibers having a length of about 0.2 μm to about 10 μm.5. The method of wherein the carbon-graphene-lead composite particles have a size of about 1.5 μm to about 50 μm.6. The method of claim 1 , wherein the lead particles and cellulose have a weight ratio from about 1:1 to about 1:10.7. The method of claim 1 , wherein the graphene particles and cellulose have a weight ratio from about 1:1 to about 1:10.8. The method of claim 1 , wherein the graphene particles and lead particles have a weight ratio from about 1:1 to about 1:10.9. The method of claim 1 , wherein the concentration of the lead particles claim 1 , graphite particles and cellulose materials in the aqueous solution is from ...

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Номер записи: 82
27-08-2020 дата публикации

Methods of Making Bandgap-Tunable Perovskite Materials

Номер: US20200270141A1
Автор: Gao Hanwei, Ling Yichuan, Ma Biwu, Wang Xi
Принадлежит:

Bandgap-tunable perovskite compositions are provided having the formula CsPb(AB), wherein A and B are each a halogen. The mixed halide perovskite composition has a morphology which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition. For example, the perovskite may be in the form of nanocrystals embedded in a non-perovskite matrix, which, for example, may have the formula CsPb(AB), wherein A and B are each a halogen. Solar cells and light-emitting diodes comprising the mixed perovskite compositions are also provided. 1. A method of making a mixed halide perovskite composition comprising:depositing a first portion of a first precursor solution on a substrate; anddepositing a first portion of a second precursor solution on the substrate, wherein the second precursor solution is different from the first precursor solution,{'sub': x', 'y', '3, 'wherein the depositing of the first and second precursor solutions is carried out in a manner effective to produce a mixed halide composition comprising a perovskite having the formula: CsPb(AB)wherein A and B are each a halogen, and the perovskite is in the form of nanocrystals embedded in a non-perovskite matrix, which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition.'}2. The method of claim 1 , wherein the step of depositing a first portion of the first precursor solution on the substrate and the step of depositing a first portion of the second precursor solution on the substrate are performed simultaneously.3. The method of claim 1 , wherein the step of depositing a first portion of the first precursor solution on the substrate and the step of depositing a first portion of the second precursor solution on the substrate are performed sequentially.4. The method of claim 1 , wherein the first precursor solution comprises CsBr or CsI and wherein the second precursor solution comprises PbIor PbBr.5. The method of claim 1 , wherein ...

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Номер записи: 83
04-10-2018 дата публикации

Porous solid phase for rapidly isolating biological molecules for nucleic acid amplification reaction from biological sample, and use thereof

Номер: US20180282717A1
Автор: Daeho Park, Guem Suk In, Jeong Soo Kim, Jung-Heon Han, Junsung Shin
Принадлежит: BIO CUBE SYSTEM Co Ltd

A method for rapidly isolating a biological molecule for a nucleic acid amplification reaction from a biological sample, the method comprising: putting a cubical shaped-porous solid phase having a plurality of pores varied in size in contact with a biological sample to get the biological molecule present in the biological sample sucked into pores of the cubical shaped-porous solid phase, wherein the cubical shaped-porous solid phase is made of ceramic having oxide material, which is selected from the group consisting of Al2O3, Fe2O3, low temperature co-fired ceramic (LTCC), PbO, and ZnO.

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Номер записи: 84
23-12-2021 дата публикации

Ball mill cooling system and method

Номер: US20210394192A1
Автор: Brett W. Ware, James D. Schleusner, Jason J. Jaeger, Morten Schneegans, Sean Riley, Tobias Kuptz
Принадлежит: Clarios Germany GmbH and Co KG, CPS Technology Holdings LLC, Johnson Controls Technology Co

A cooling system for a ball mill used for production of a lead oxide is disclosed. The system has an internal nozzle configured to introduce water into an interior of a rotating ball mill drum, and a water conduit on an exterior of the rotating drum and configured for external water delivery so as to deliver water on the drum exterior. A control system may also be provided for control of the cooling system. A method is also disclosed.

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Номер записи: 85
23-12-2021 дата публикации

Particle, Composition, Film, Laminated Structure, Light-Emitting Device and Display

Номер: US20210395608A1
Автор: Naito Shota
Принадлежит: Sumitomo Chemical Company, Limited

Disclosed is a particle with a component (1) and a component (2), in which the component (2) covers at least a portion of the surface of the component (1), and the component (2) includes an organic silicon compound layer including a siloxane bond and an inorganic silicon compound layer including a siloxane bond. 1. Particles comprising a component (1) and a component (2) , wherein:the component (2) covers at least a part of the surface of the component (1),the component (2) has a layer of an organic silicon compound having a siloxane bond and a layer of an inorganic silicon compound having a siloxane bond,the component (1) is luminescent semiconductor particles, andthe component (2) is a coating layer.3. The particles according to claim 1 , wherein the component (1) is a perovskite compound including constituent components A claim 1 , B claim 1 , and X claim 1 ,wherein the constituent component A indicates a component positioned at each vertex of a hexahedron having the constituent component B at its center in a perovskite type crystal structure, and is a monovalent cation,the constituent component X indicates a component positioned at each vertex of an octahedron having the constituent component B at the center in the perovskite type crystal structure, and is one or more kinds of anions selected from the group consisting of a halide ion and a thiocyanate ion,the constituent component B indicates a component positioned at a center of a hexahedron having the constituent component A at each vertex and at a center of an octahedron having the constituent component X at each vertex in the perovskite type crystal structure, and is a metal ion.5. A composition comprising the particles of claim 1 , and at least one component selected from the group consisting of a component (3) claim 1 , a component (4) claim 1 , and a component (4-1) claim 1 , wherein:the component (3) is a solvent;the component (4) is a polymerizable compound; andthe component (4-1) is a polymer.6. A film ...

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Номер записи: 86
22-10-2015 дата публикации

ACTIVE MATERIALS FOR LEAD ACID BATTERY

Номер: US20150298987A1
Автор: ALBANO Fabio, ANDERSON Erik W., DHAR Subhash, Gopu Susmitha, Higley Lin, Venkatesan Srinivasan
Принадлежит:

The present disclosure describes a series of improvements to the positive active material and negative active material of electrochemical cells. In particular, the present disclosure describes improvements in the lead oxide powder, processing, and additives used to make the positive active material and negative active material for pastes used to make electrodes for lead acid batteries. The present disclosure describes materials and processing that enable the formation of positive active materials having density comparable to conventional material but with substantially higher porosity and improved mechanical properties and the formation of negative active materials using substantially shorter and less energy intensive processing. 1. A metal oxide powder adapted for use in making an active material for electrochemical cells , comprising ,first particles having a first size distribution having a first peak value,second particles having a second size distribution having a second peak value,said peak value of said second size distribution being less than or equal to about one-half the peak value of said peak value of said first size distribution,and said second particles comprising from about 5 to about 25 weight percent of said first and second particles.2. The electrochemical cell of claim 1 , further comprising a lead-acid electrochemical cell.3. The powder of claim 1 , said first size distribution comprising said peak value about equal to or less than 15 microns across.4. The powder of claim 1 , said first size distribution comprising said peak value about equal to or less than 10 microns across.5. The powder of claim 1 , said second size distribution comprising said peak value about equal to or less than 7 microns across.6. The powder of claim 1 , said second size distribution comprising said peak value about equal to or less than about 1 micron across.7. The powder of claim 1 , said first distribution comprising said peak value about equal to or less than 10 ...

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Номер записи: 87
20-10-2016 дата публикации

ZERO LEAD POLLUTION PROCESS FOR RECYCLING USED LEAD ACID BATTERIES

Номер: US20160308261A1
Автор: Tyagi Sanjeev, TYAGI Vipin
Принадлежит: VERDEEN CHEMICALS, INC.

Described herein is a process for recycling of used lead-acid batteries. In an embodiment, the process includes contacting crushed non-metallic components with a reducing mixture comprising a nitric acid solution to reduce at least a portion of residual lead compounds and alloys. The lead in the portion of residual lead compounds and alloys is reduced from an insoluble +4 state to a soluble +2 state to form a slurry with a lead-rich filtrate. The process further includes filtering the slurry to separate plastics and separators from the lead-rich filtrate and contacting the lead-rich filtrate with sulfuric acid to obtain a lead sulfate paste and nitric acid. The process further includes processing the metal containing components to form a paste comprising sulfates of lead and other metals present in the metal containing components, contacting the lead sulfate paste and the paste comprising sulfates of lead and other metals with alkali to form a precipitate comprising oxides of lead, and contacting the precipitate comprising oxides of lead with a carboxylic acid to form soluble lead carboxylates. Soluble lead carboxylates are then processed to obtain lead monoxide. 1. A process for recovering lead oxide from a component of a lead-acid battery , the process comprising:contacting a component of the lead-acid battery with a mixture comprising a nitric acid solution to reduce at least a portion of residual lead compounds and alloys comprising the component, wherein lead in the said portion of residual lead compounds and alloys is reduced from an insoluble +4 state to a soluble +2 state to form a slurry with a lead-rich filtrate;filtering the slurry to separate plastics and separators comprising the component from the lead-rich filtrate; andcontacting the lead-rich filtrate with sulfuric acid to obtain a lead sulfate paste and nitric acid.2. The process of claim 1 , further comprising processing the lead sulfate paste to obtain lead oxide.3. The process of claim 1 , ...

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Номер записи: 88
26-09-2019 дата публикации

Method for indirectly measuring lead ion concentration in blood

Номер: US20190293664A1
Автор: Hung-Yi Chuang, Ming-Hui Yang, Yu-Chang TYAN
Принадлежит: KAOHSIUNG MEDICAL UNIVERSITY

A method for measuring blood lead ion concentration comprising the steps of: providing a blood sample; analyzing the blood sample by using a mass spectrometry to obtain a spectrum; calculating an intensity area of a characteristic peak at mass-to-charge ratio (m/z)=1088.16±0.05 in the spectrum; and calculating a lead ion concentration (μg/dL) in the blood sample using the formula of y=0.875x+11.5, wherein y indicates the intensity area, and x indicates the lead ion concentration in the blood sample.

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Номер записи: 89
26-10-2017 дата публикации

Nanocrystal synthesis

Номер: US20170305756A1
Автор: Ferry PRINS, Mark WEIDMAN, Megan BECK, William Tisdale
Принадлежит: Massachusetts Institute of Technology

A method of preparing monodisperse MX semiconductor nanocrystals can include contacting an M-containing precursor with an X donor to form a mixture, where the molar ratio between the M containing precursor and the X donor is large. Alternatively, if additional X donor is added during the reaction, a smaller ratio between the M containing precursor and the X donor can be used to prepare monodisperse MX semiconductor nanocrystals.

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Номер записи: 90
18-10-2018 дата публикации

Hybrid Perovskite Material Processing

Номер: US20180299764A1
Автор: Dhas Vivek V., Irwin Michael D., Mielczarek Kamil
Принадлежит:

A method for preparing photoactive perovskite materials. The method comprises the steps of: introducing a lead halide and a first solvent to a first vessel and contacting the lead halide with the first solvent to dissolve the lead halide to form a lead halide solution, introducing a Group 1 metal halide a second solvent into a second vessel and contacting the Group 1 metal halide with the second solvent to dissolve the Group 1 metal halide to form a Group 1 metal halide solution, and contacting the lead halide solution with the Group 1 metal halide solution to form a thin-film precursor ink. The method further comprises depositing the thin-film precursor ink onto a substrate, drying the thin-film precursor ink to form a thin film, annealing the thin film; and rinsing the thin film with a salt solution. 1. A perovskite material prepared by a process comprising the steps of: introducing a lead halide into a first vessel;', 'introducing a first solvent to the first vessel;', 'contacting the lead halide with the first solvent to dissolve the lead halide to form a lead halide solution;', 'introducing a Group 1 metal halide into a second vessel;', 'introducing a second solvent into the second vessel; and', 'contacting the Group 1 metal halide with the second solvent to dissolve the Group 1 metal halide to form a Group 1 metal halide solution;', 'contacting the lead halide solution with the Group 1 metal halide solution to form the thin-film precursor ink;, 'preparing a thin-film precursor ink, wherein preparing the thin-film precursor ink comprises the steps ofdepositing the thin-film precursor ink onto a substrate;drying the thin-film precursor ink to form a thin film;annealing the thin film; andrinsing the thin film with a salt solution comprising a third solvent and a salt selected from the group consisting of methylammonium halide, formamidinium halide, guanidinium halide, ethene tetramine halide, imidazolium halide, 1,2,2-triaminovinyl ammonium halide, and 5- ...

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Номер записи: 91
03-10-2019 дата публикации

METHOD FOR RECYCLING LEAD PASTE IN SPENT LEAD-ACID BATTERY

Номер: US20190305388A1
Автор: Chen Ye, HOU Huijie, HU Jingping, LI Mingyang, LIANG Sha, LIU Bingchuan, LIU KANG, WANG Junxiong, XIAO Keke, YANG Jiakuan, Yu Wenhao
Принадлежит:

The disclosure discloses a method for recycling lead paste in a spent lead-acid battery, comprising: (1) pretreating lead paste in a spent lead-acid battery as a raw material under vacuum; mixing the pretreated lead paste with a chlorination reagent to obtain reactants; and heating the reactants under vacuum to carry out a chlorination volatilization reaction, so that lead element in the pretreated lead paste is combined with chlorine element in the chlorination reagent to form lead chloride, which is then volatilized, and after the reaction is completed, chlorination residue and a crude lead chloride product are obtained by condensation and crystallization after volatilization; (2) purifying the crude lead chloride product obtained in the step (1) under vacuum to obtain a refined lead chloride product. The disclosure improves the overall process flow of the recycling method as well as parameter conditions of the respective steps thereof, and can effectively solve the problem of serious pollution in lead paste recycling in the prior art. 1. A method for recycling lead paste in a spent lead-acid battery , comprising:(1) pretreating lead paste in a spent lead-acid battery as a raw material under vacuum to convert lead dioxide in the lead paste into lead oxide; mixing the pretreated lead paste with a chlorination reagent to obtain reactants, the chlorination reagent being used to provide chlorine element; and heating the reactants under vacuum to carry out a chlorination volatilization reaction, so that lead element in the pretreated lead paste is combined with chlorine element in the chlorination reagent to form lead chloride, which is then volatilized, and after the reaction is completed, chlorination residue and a crude lead chloride product are obtained by condensation and crystallization after volatilization;(2) purifying the crude lead chloride product obtained in the step (1) under vacuum to separate other chloride impurities therein, thereby obtaining a refined ...

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Номер записи: 92
01-11-2018 дата публикации

SYSTEM AND METHOD FOR MAKING QUANTUM DOTS

Номер: US20180312753A1
Автор: "EL-BALLOULI Alaa", ABDELHADY Ahmed L., BAKR Osman M., KNUDSEN Kristian Rahbek, Pan Jun
Принадлежит:

Embodiments of the present disclosure provide for methods of making quantum dots (QDs) (passivated or unpassivated) using a continuous flow process, systems for making QDs using a continuous flow process, and the like. In one or more embodiments, the QDs produced using embodiments of the present disclosure can be used in solar photovoltaic cells, bio-imaging, IR emitters, or LEDs. 1. A system for making a quantum dot (QD) , comprising:a mixing device for receiving solution A and solution B, wherein the mixing device is configured to mix solution A and solution B to form solution C;a first coil in fluidic communication with the mixing device, wherein the first coil is configured to form QD seeds from solution C via nucleation; anda second coil positioned in serial communication with the first coil, wherein the second coil is in fluidic communication with the first coil, wherein the second coil is configured to grow the QDs from the QD seeds,wherein the first coil and the second coil are independent of one another.2. The system of claim 1 , wherein the system is a continuous flow process system.3. The system of claim 1 , wherein the mixing device is one or more of a mixing chip or heating column.4. The system of claim 1 , wherein one or more of solution A and solution B include a fluorinated fluid.5. The system of claim 4 , wherein the fluorinated fluid is one or more of CFN claim 4 , CHN claim 4 , FC-70 claim 4 , FC-71 claim 4 , and FC-770.6. The system of claim 1 , wherein the first coil is operated at a first temperature and the second coil is operated at a second temperature.7. The system of claim 1 , wherein the first temperature and the second temperature are different.8. The system of claim 6 , wherein the first temperature is about 110 to 130° C.9. The system of claim 6 , wherein the second temperature is about 70 to 90° C.10. The system of claim 1 , further comprising one or more containers in fluidic communication with the mixing device.11. The system of ...

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Номер записи: 93
01-10-2020 дата публикации

METHODS FOR PRODUCING FERRIC MALTOL COMPOSITIONS FROM ELEMENTAL IRON

Номер: US20200308130A1
Автор: Faria Nuno Jorge Rodrigues, Powell Jonathan Joseph
Принадлежит:

Methods for producing ferric maltol compositions, such as ferric trimaltol, from elemental iron, and ferric maltol compositions produced by these methods and their uses are described. 1. A method for producing a ferric maltol composition comprising reacting elemental iron with maltol and recovering the ferric maltol that forms.2. The method according to claim 1 , wherein the ferric maltol is ferric trimaltol.3. The method according to claim 1 , wherein reacting elemental iron is carried out in the presence of oxygen and/or an oxidising agent.4. The method according to claim 3 , wherein the oxygen provided to the reaction using compressed air claim 3 , oxygen or oxygen-enriched material.5. The method according to claim 3 , wherein oxygen is provided to the reaction using air achieved through mixing and thus aeration of the solution with atmospheric oxygen or by introduction of air by injection or pumping.6. The method according to claim 1 , further comprising adding a complexing agent to accelerate the conversion of elemental iron to ferric maltol.7. The method according to claim 1 , further comprising removing unreacted elemental iron with a magnet.8. The method according to claim 1 , wherein the method is carried out in fully aqueous conditions.9. The method according to claim 1 , wherein the ferric maltol is produced in a single vessel.10. The method according to claim 1 , further comprising separating.11. The method according to claim 1 , further comprising purifying and/or formulating the ferric maltol composition.12. The method according to claim 1 , further comprising mixing the ferric maltol composition with one or more excipients.13. The method according to claim 1 , further comprising formulating the ferric maltol composition for oral administration to a subject.14. The method according to claim 10 , further comprising drying the ferric maltol composition. The present invention relates to methods for producing ferric maltol compositions, such as ferric ...

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Номер записи: 94
17-11-2016 дата публикации

HIGH-PERFORMING BULK PHOTOVOLTAICS

Номер: US20160336466A1
Автор: Rappe Andrew M., YOUNG Steve M., ZHENG Fan
Принадлежит:

The present invention provides materials with high bulk photovoltaic effect response. The present invention also provides for products comprising the high bulk photovoltaic effect materials of the present invention. 1. A composition , comprising: a polar oxide characterized as having a LiNbOstructure with a band gap of less than about 2.0 eV.2. The composition of claim 1 , wherein the band gap is less than about 1.8 eV.3. The composition of claim 1 , wherein the band gap is in the range of from about 1.2 eV to about 1.8 eV.4. The composition of claim 1 , wherein the band gap is in the range of from about 1.7 eV to about 1.8 eV.5. The composition of claim 1 , wherein the polar oxide comprises one or more dscations.6. The composition of claim 5 , wherein the one or more dscations are electronegative metals.7. The composition of claim 5 , wherein the one or more dscations comprises one or more of the following: Pb claim 5 , Bi claim 5 , Tl claim 5 , Hg claim 5 , Au claim 5 , Pt claim 5 , Sb claim 5 , Sn claim 5 , In claim 5 , Cd claim 5 , Ag claim 5 , Pd claim 5 , As claim 5 , Ge claim 5 , Ga claim 5 , Zn claim 5 , Cu claim 5 , Ni.8. The composition of claim 6 , wherein the polar oxide comprises MgZnPbO claim 6 , wherein x is in the range of from about 0.01 to about 0.99.9. The composition of claim 7 , wherein the polar oxide comprises MgZnPbO.10. The composition of claim 7 , wherein the polar oxide comprises PbNiO.11. The composition of claim 5 , wherein the one or more dscations comprises Bi.12. The composition of claim 7 , wherein the polar oxide comprises LiBiO.13. The composition of claim 5 , wherein the composition is characterized as having a polarization of at least about 50 μC/cm.14. The composition of claim 5 , wherein the composition is characterized as having a polarization of the range of from about 75 μC/cmto about 100 μC/cm.15. The composition of claim 5 , wherein the composition is characterized as having a Glass coefficient of greater than about 30× ...

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Номер записи: 95
24-10-2019 дата публикации

NANOCRYSTAL WITH A LARGE STOKES SHIFT AND A METHOD FOR PREPARING THE SAME

Номер: US20190322931A1
Автор: CHEN Hsueh-Shih, YANG Yi-Ching
Принадлежит: National Tsing Hua University

A nanocrystal with a large Stokes shift includes a matrix domain having a composition of M1M2A, and a plurality of seed domains which are distributed in the matrix domain and each of which has a composition of M1M2A, wherein M1, M2, A, x, y, z, x′, y′, and z′ are as defined herein. 1. A nanocrystal with a large Stokes shift , comprising:{'b': 1', '2, 'sub': x', 'y', 'z, 'a matrix domain having a composition of MMA; and'}{'b': 1', '2, 'sup': 'x′', 'sub': y′', 'z′, 'a plurality of seed domains which are distributed in said matrix domain and each of which has a composition of MMA,'} [{'b': '1', 'M is selected from the group consisting of Ag, Cu, Au, Zn, Pb, Cd, Hg, Ti, W, Mg, Fe, Al, Ga, In, and B,'}, {'b': 2', '1, 'M is a dopant metal selected from the group consisting of Ag, Cu, Au, Zn, Pb, Cd, Hg, Ti, W, Mg, Fe, Al, Ga, In, and B, and is different from M,'}, 'A is selected from the group consisting of S, Se, O, Te, N, P, Cl, Br, I, and As,', {'b': 1', '2', '1', '2, 'sub': x', 'y', 'z, 'x, y, and z are respectively a number of M, a number of M, and a number of A to satisfy valence requirement of said composition of MMA,'}, {'b': 1', '2', '1', '2, 'sub': x′', 'y′', 'z′, 'x′, y′, and z′ are respectively a number of M, a number of M, and a number of A to satisfy valence requirement of said composition of MMA,'}, 'y is in a range larger than 0 and less than 1, and', 'y′ is in a range from 0 to less than 1 and is less than y., 'wherein'}2. The nanocrystal according to claim 1 , whereina sum of x and y is 1,a sum of x′ and y′ is 1,z is 1, andz′ is 1.3. The nanocrystal according to claim 1 , wherein said matrix domain has an absorption wavelength claim 1 , each of said seed domains has an emission wavelength claim 1 , and a difference between said absorption wavelength and said emission wavelength is larger than 350 nm.4. The nanocrystal according to claim 1 , wherein said matrix domain is of a size from 1 nm to 100 nm claim 1 , and each of said seed domains is of a size ...

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Номер записи: 96
06-12-2018 дата публикации

CATHODE ACTIVE MATERIAL AND FLUORIDE ION BATTERY

Номер: US20180351176A1
Автор: Miki Hidenori
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A main object of the present disclosure is to provide a novel cathode active material that may be used for a fluoride ion battery. The present disclosure achieves the object by providing a cathode active material used for a fluoride ion battery, comprising a composition represented by PbCuF, wherein 0≤x<2. 1. A cathode active material used for a fluoride ion battery , comprising a composition represented by PbCuF , wherein 0≤x<2.2. The cathode active material according to claim 1 , wherein the x satisfies x≤1.75.3. The cathode active material according to claim 1 , wherein the x satisfies 0.5≤x≤1.5.4. A cathode active material used for a fluoride ion battery claim 1 , comprising a Pb element claim 1 , a Cu element claim 1 , and a F element claim 1 , andthe cathode active material has a peak at a position of 2θ=22.6°±0.50, 27.8°±0.5°, 38.5°±0.5°, and 44.8°±0.5° in X-ray diffraction measurement using a CuKα ray.5. A fluoride ion battery comprising a cathode active material layer claim 1 , an anode active material layer claim 1 , and an electrolyte layer formed between the cathode active material layer and the anode active material layer claim 1 , and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the cathode active material layer includes the cathode active material according to .'}6. The fluoride ion battery according to claim 5 , wherein the electrolyte layer is a solid electrolyte layer.7. The fluoride ion battery according to claim 6 , wherein the cathode active material layer does not include a solid electrolyte.8. The fluoride ion battery according to claim 6 , wherein the cathode active material layer includes only PbFas a solid electrolyte.9. A fluoride ion battery comprising a cathode active material layer claim 6 , an anode active material layer claim 6 , and an electrolyte layer formed between the cathode active material layer and the anode active material layer claim 6 , and{'claim-ref': {'@idref': 'CLM-00004', 'claim 4'}, 'the cathode active material ...

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Номер записи: 97
14-12-2017 дата публикации

PEROVSKITE NANOCRYSTALLINE PARTICLES AND OPTOELECTRONIC DEVICE USING SAME

Номер: US20170358757A1
Автор: CHO Himchan, IM Sanghyuk, Kim Young-Hoon, Lee Tae-Woo
Принадлежит:

Provided are perovskite nanocrystalline particle and an optoelectronic device using the same. The perovskite nanocrystalline particle may include a perovskite nanocrystalline structure while being dispersible in an organic solvent. Accordingly, the perovskite nanocrystalline particle in accordance with the present invention has therein a perovskite nanocrystal having a crystalline structure in which FCC and BCC are combined; forms a lamellar structure in which an organic plane and an inorganic plane are alternately stacked; and can show high color purity since excitons are confined to the inorganic plane. In addition, the perovskite nanocrystalline particle have a particle size greater than or equal to a Bohr diameter beyond a quantum confinement effect, and simultaneously can implement high emission efficiency and emission wavelength which is almost not dependent on particle size. Furthermore, the perovskite nanocrystalline particle in accordance with the present invention, as a nanoparticle which is dispersible in an organic solvent, is applicable in various electronic devices such as light emitting devices, lasers, solar cells, etc. 1. A perovskite nanocrystal particle capable of being dispersible in an organic solvent and comprising a perovskite nanocrystal structure ,wherein the perovskite is an organic-inorganic-hybrid perovskite or an inorganic metal halide perovskite, andthe perovskite nanocrystal particle has a diameter greater than a Bohr diameter on an area that is not affected by a quantum confinement effect.2. The perovskite nanocrystal particle of claim 1 , wherein a light emitting body of the perovskite nanocrystal particle has a diameter of 20 nm to 30 nm.3. The perovskite nanocrystal particle of claim 1 , wherein the organic solvent comprises a polar solvent and a non-polar solvent claim 1 ,the polar solvent comprises dimethylformamide, gamma butyrolactone, N-methylpyrrolidone, dimethylsulfoxide or isopropyl alcohol, andthe non-polar solvent ...

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Номер записи: 98
14-12-2017 дата публикации

LIGHT-EMITTING LAYER FOR PEROVSKITE LIGHT-EMITTING DEVICE, METHOD FOR MANUFACTURING SAME, AND PEROVSKITE LIGHT-EMITTING DEVICE USING SAME

Номер: US20170358759A1
Автор: CHO Himchan, IM Sanghyuk, Kim Young-Hoon, Lee Tae-Woo
Принадлежит:

Provided are: a light-emitting layer for a perovskite light-emitting device; a method for manufacturing the same; and a perovskite light-emitting device using the same. The method of the present invention for manufacturing a light-emitting layer for an organic and inorganic hybrid perovskite light-emitting device comprises a step of forming a first nanoparticle thin film by coating, on a member for coating a light-emitting layer, a solution comprising organic and inorganic perovskite nanoparticles including an organic and inorganic perovskite nanocrystalline structure. Thereby, a nanoparticle light emitter has therein an organic and inorganic hybrid perovskite having a crystalline structure in which FCC and BCC are combined; forms a lamella structure in which an organic plane and an inorganic plane are alternatively stacked; and can show high color purity since excitons are confined to the inorganic plane. In addition, it is possible to improve the luminescence efficiency and luminance of a device by making perovskite as nanoparticles and then introducing the same into a light-emitting layer. 1. A method of a light emitting layer , comprising steps of:preparing a light emitting layer coating member; andapplying a solution comprising an organic-inorganic-hybrid perovskite nanoparticle comprising an organic-inorganic-hybrid perovskite nanocrystal structure on the light emitting layer coating member to form a first thin film of a nanoparticle.2. The method of claim 1 , wherein the step of forming the first thin film of the nanoparticle uses a solution process.3. The method of claim 2 , wherein the solution process comprises at least one process selected from the group consisting of spin-coating claim 2 , bar coating claim 2 , slot-die coating claim 2 , Gravure-printing claim 2 , nozzle printing claim 2 , ink-jet printing claim 2 , screen printing claim 2 , electrohydrodynamic jet printing claim 2 , and electrospray.4. The method of claim 1 , wherein the first thin film ...

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Номер записи: 99
14-11-2019 дата публикации

PEROVSKITE QUANTUM DOT PREPARATION METHOD AND PEROVSKITE QUANTUM DOT SOLUTION

Номер: US20190345382A1
Автор: Chen Xu
Принадлежит:

A perovskite quantum dot preparation method and a perovskite quantum dot solution are provided. The preparation method may include: providing a first solution including caesium oleate, a second solution including lead halide and a third solution including DDAB; adding the first solution, the second solution and the third solution into a non-polar alkyl solution at a preset proportion and stifling to obtain a perovskite quantum dot solution; the perovskite quantum dot solution may include caesium-lead-halogen of pure phase. In this way, the present disclosure can easily obtain the perovskite quantum dot solution including caesium-lead-halogen of pure phase. 1. A preparation method for perovskite quantum dot , comprising:providing a first solution comprising caesium oleate, a second solution comprising lead halide and a third solution comprising dimethyl didodecyl ammonium bromide (DDAB); andadding the first solution, the second solution and the third solution into a non-polar alkyl solution at a preset proportion and stirring to obtain a perovskite quantum dot solution;{'b': 4', '1', '6, 'wherein the perovskite quantum dot solution comprises caesium-lead-halogen of pure phase; the preset proportion is a molar ratio of :: among the caesium oleate, the lead halide and the DDAB; and the halogen in the caesium-lead-halogen comprises at least one of chlorine element, bromine element and iodine element.'}2. The preparation method of claim 1 , wherein the non-polar alkyl solution comprises at least one non-polar alkyl of normal hexane claim 1 , dodecane claim 1 , octadecane and squalane.3. A preparation method for perovskite quantum dot claim 1 , comprising:providing a first solution comprising caesium oleate, a second solution comprising lead halide and a third solution comprising DDAB; andadding the first solution, the second solution and the third solution into a non-polar alkyl solution at a preset proportion and stirring to obtain a perovskite quantum dot solution; ...

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Номер записи: 100