ВЫСОКОЭФФЕКТИВНЫЙ ФОТОЛЮМИНЕСЦЕНТНЫЙ МАТЕРИАЛ И СПОСОБ ЕГО ПРОИЗВОДСТВА

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Изобретение относится к композиционной частице. Описана композиционная частица для применения в маркировке, содержащая по меньшей мере одну суперпарамагнитную часть и по меньшей мере одну термолюминесцентную часть, при этом композиционная частица содержит (b) термолюминесцентную центральную часть (ядро), которая по меньшей мере частично окружена (а) суперпарамагнитным материалом. Также описаны множество композиционных частиц, маркировка, изделие, краска, способ снабжения изделия маркировкой, способ из идентификации и установления подлинности изделия, прибор для осуществления способа, способ маркировки объектов. Технический результат: улучшение защиты, надежности и предотвращение фальсификации или подделки товаров или ипредметов. 9 з. и 17 н.п. ф-лы, 9 ил.

УСТРОЙСТВО ДЛЯ НЕЙТРОНОГРАФИИ ПРИ ПОГРУЖЕНИИ И СПОСОБ НЕЙТРОНОГРАФИИ С ИСПОЛЬЗОВАНИЕМ ДАННОГО УСТРОЙСТВА

Изобретение относится к области неразрушающего исследования излучающих объектов с использованием нейтронографии. Устройство, предназначенное для использования в нейтронографии при погружении в среду, содержащую анализируемые образцы, включает в себя первый преобразователь (C1), включающий в себя первый материал, способный преобразовывать тепловое нейтронное излучение в остаточное бета-излучение посредством своей нейтронной активации; второй преобразователь (С2), включающий в себя второй материал, способный поглощать тепловое нейтронное излучение путем захвата и способный преобразовывать остаточное бета-излучение в световое излучение, причем вышеупомянутый второй преобразователь находится в контакте с вышеупомянутым первым преобразователем; подложку (S3), включающую в себя гидрированные компоненты, на которой расположен вышеупомянутый второй преобразователь, причем вышеупомянутая подложка является прозрачной для вышеупомянутого светового излучения. Технический результат - повышение пространственного ...

ЛЮМИНОФОРНАЯ СМЕСЬ ДЛЯ НАНЕСЕНИЯ НА СТЕКЛЯННЫЕ КОЛБЫ ИСТОЧНИКОВ ОПТИЧЕСКОГО ИЗЛУЧЕНИЯ

Изобретение предназначено для электротехнической промышленности и может быть использовано при изготовлении электрических ламп. Люминофорная смесь содержит, мас.%: порошок люминофора 65,0-84,5, связующее (бора окись) 1,0-4,0, наполнитель - остальное. Не менее 60 мас.% порошка люминофора должно иметь гранулометрический состав до 20 мкм. В качестве наполнителя можно использовать кварцевый порошок, порошок молотого сапфира, дробленую поликристаллическую окись алюминия. Компоненты перемешивают 15-20 мин, просушивают при 100±5oС 2,5-3,5 ч, охлаждают. Люминофорную смесь наносят электростатическим методом на внутреннюю поверхность колб ламп. Изобретение позволяет уменьшить затраты на изготовление ламп, повысить производительность процесса нанесения. 1 табл.

СПОСОБ ПОЛУЧЕНИЯ ЛЮМИНЕСЦЕНТНЫХ НАНОЧАСТИЦ СУЛЬФИДА КАДМИЯ, СТАБИЛИЗИРОВАННЫХ ПОЛИМЕРНЫМИ МАТРИЦАМИ

Изобретение относится к способу получения люминесцентных наночастнц сульфида кадмия, используемых при производстве дисплеев, в электрофотографии и других отраслях промышленности. Описывается способ получения люминесцентных наночастиц сульфида кадмия, стабилизированных полимерными матрицами, включающий выращивание наночастиц сульфида кадмия непосредственно в полимерных матрицах. Полимерное соединение, выбранное из ряда, включающего полистирол-блок-полиэтиленоксид, полистирол-блок-4-винилпиридин или полифенилен, подвергают растворению, вносят в полученный раствор анионное поверхностно-активное вещество с последующим добавлением соединения, содержащего катионы кадмия, а затем соединения, содержащего анионы серы, и после выращивания наночастиц сульфида кадмия удаляют избыток анионного поверхностно-активного вещества. Изобретение обеспечивает повышение качества люминесцентных наночастиц сульфида кадмия, стабилизированных полимерными матрицами, в том числе яркости и чистоты света, за счет контролируемого ...

СПОСОБ ИЗГОТОВЛЕНИЯ МАРКИРОВКИ МАРШРУТА ЭВАКУАЦИИ И МАРКИРОВКА МАРШРУТА ЭВАКУАЦИИ

Изобретение относится к способу изготовления средства маркировки эвакуационного маршрута в самолете. Техническим результатом является увеличение светимости и прочности средства маркировки. Средство содержит светящийся слой, люминесцирующий в темноте, и профиль, состоящий из двух профильных компонентов, выполненных с возможностью соединения друг с другом. Светящийся слой помещают в вырез, выполненный в первом из профильных компонентов и ориентированный в продольном направлении, а второй профильный компонент выполняют с возможностью закрепления на прилегающей поверхности пола. Способ включает следующие этапы: из смеси силиконового материала и фотолюминесцентных пигментов изготавливают светящийся слой и вводят данную смесь, находящуюся в жидком состоянии, в вырез первого профильного компонента, где она отверждается посредством образования мостиковых связей со стенками внутри профиля. 2 н. и 10 з.п. ф-лы, 5 ил.

ОКСИД АЛЮМИНИЯ, ЛЮМИНОФОРЫ И СМЕШАННЫЕ СОЕДИНЕНИЯ И СООТВЕТСТВУЮЩИЕ СПОСОБЫ ПРИГОТОВЛЕНИЯ

Изобретение относится к неорганической химии и может быть использовано при получении люминофоров для покрытий флуоресцентных ламп. Гамма оксид алюминия, полученный из квасцов, в количестве 85%-95% по массе смешивают с 0,4%-1,8% по массе спекающего агента - NHF и 2,5%-13% по массе зародышей альфа оксида алюминия. Смесь прокаливают в печи при температуре от 1150°С до 1400°С в течение 1-6 часов, измельчают 16 часов в шаровой мельнице с размалывающими шарами из оксида алюминия, количество которых по меньшей мере в двадцать раз превышает количество прокаленной смеси. Диаметр размалывающих шаров из оксида алюминия от 3 см до 5 см. Измельченную смесь просеивают через сетку, изготовленную из незагрязняющего материала, с размером ячеек от 150 мкм до 250 мкм. Полученный альфа оксид алюминия состоит главным образом из частиц размером dот 0,3 мкм до 2 мкм в основном сферической формы, что позволяет оптимизировать излучающие свойства флуоресцентного слоя. 5 з.п. ф-лы, 4 ил., 7 пр.

СПОСОБ СИНТЕЗА ПОЛУПРОВОДНИКОВЫХ КВАНТОВЫХ ТОЧЕК

Изобретение относится к получению полупроводниковых квантовых точек типов ядро и ядро-оболочка методом коллоидного синтеза, которые могут быть использованы в производстве различных люминесцентных материалов, а также в качестве основы для производства сверхминиатюрных светодиодов, источников белого света, одноэлектронных транзисторов, нелинейно-оптических устройств, фоточувствительных и фотогальванических устройств. Способ получения полупроводниковых квантовых точек на основе халькогенидов металлов II или IV группы включает синтез ядер нанокристаллов из прекурсора, содержащего халькоген, и прекурсора, содержащего металл II или IV группы, с использованием органического растворителя и модификатора поверхности, в качестве которого используют (аминоалкил)триалкоксисиланы. Синтез ядер осуществляют при постоянной температуре в пределах от 150 до 250°С в течение от 15 с до 1 часа и дополнительно проводят обработку реакционной смеси, содержащей ядра нанокристаллов, УФ-светом в течение 1÷10 мин и ...

ПОЛИМЕРНАЯ ЛЮМИНЕСЦЕНТНАЯ КОМПОЗИЦИЯ ДЛЯ ПОЛУЧЕНИЯ БЕЛОГО СВЕТА, ВОЗБУЖДАЕМАЯ СИНИМ СВЕТОДИОДОМ

Изобретение относится к люминесцентным композициям, применяемым для изготовления устройств общего и местного освещения. Полимерная люминесцентная композиция для получения белого света, возбуждаемая синим светодиодом, включает следующие компоненты, мас.ч.: прозрачный полимер - 100; фотолюминофор на основе граната Y3Аl5О12:Се или Gd3Al5O12:Ce, или на основе смеси указанных соединений - 1,5-5,0; воск полиэтиленовый в виде порошка с размером частиц 18-30 мкм - 0,1-0,7; стабилизатор 0,2-1,0. В качестве прозрачного полимера может быть использован поликарбонат, полистирол или сополимер стирола с акрилонитрилом и бутадиеном. В качестве стабилизатора композиция может содержать соединение из группы стерически затрудненных фосфитов. Изобретение позволяет получить защитную светотехническую композицию, обеспечивающую сниженную цветовую температуру, улучшенные координаты цветности. 4 з.п. ф-лы, 1 ил., 2 табл.

СПОСОБ ПОВЕРХНОСТНОЙ ОБРАБОТКИ ЛЮМИНОФОРА НА ОСНОВЕ СУЛЬФИДА ЦИНКА И КАДМИЯ

Использование: рентгеновские экраны. Сущность изобретения: люминофор на основе сульфида цинка и кадмия обрабатывают гидрофобизирующим органическим соединением, представляющим собой 0,1 - 8,0% -ный спиртовой раствор трикрезилфосфата в количестве 0,006 - 0,1 мас. % при перемешивании с водной суспензией люминофора. Относительная яркость ренгенолюминесценции 102 - 104% , седиментационный объем в заливочной смеси из хлористого метилена и этанола 0.40-0.43 см3/г. 1 табл.

ПОЛИМЕРНАЯ ЛЮМИНЕСЦЕНТНАЯ КОМПОЗИЦИЯ ДЛЯ КОРРЕКЦИИ СВЕТА, ИЗЛУЧАЕМОГО СВЕТОДИОДНЫМИ ИСТОЧНИКАМИ ОСВЕЩЕНИЯ

Изобретение относится к области светотехники, в частности к полимерным люминесцентным композициям, применяемым для изготовления устройств общего и местного освещения. Более конкретно, изобретение относится к полимерным люминесцентным композициям, возбуждаемым синим светом и корректирующим белый свет, излучаемый светодиодными источниками освещения, и может применяться, в частности, в рассеивателях осветительных приборов на основе светодиодов. Полимерная люминесцентная композиция предназначена для снижения интенсивности синей составляющей спектра видимого света, излучаемого светодиодными источниками освещения и включает прозрачный полимер и органический люминофор или смесь органических люминофоров общей формулы (I), где Ar означает одинаковые или различные ариленовые или гетероариленовые радикалы, выбранные из ряда: замещенный или незамещенный тиенил-2,5-диил общей формулы замещенный или незамещенный фенил-1,4-диил общей формулы (II-б) , замещенный или незамещенный 1,3-оксазол-2,5-диил общей ...

СПОСОБ НАНЕСЕНИЯ ЗАЩИТНОЙ ПЛЕНКИ НА ПОВЕРХНОСТЬ ЧАСТИЦ ЛЮМИНОФОРА

Изобретение относится к электротехнической промышленности, в частности к способу поверхностной обработки частиц люминофора, и может быть использовано для капсулирования частиц люминофора с целью повышения светотехнических и эксплуатационных параметров. Техническим результатом предлагаемого способа является повышение светотехнических параметров люминофора за счет формирования непрерывной пленки диоксида кремния на поверхности частиц люминофора. Решение поставленной задачи обеспечивается тем, что способ формирования непрерывной пленки заключается в обработке частиц люминофора 0,5 мас.% и 4 мас.% золями поликремневой кислоты, синтезированной гидролизом тетраэтоксисилана в 0,6-0,8 мас.% водном растворе аммиака. В результате заявленного способа нанесения защитной пленки достигается повышение светотехнических параметров и срока службы люминофоров. 1 з.п. ф-лы, 3 табл.

СПОСОБ НАНЕСЕНИЯ НА ИЗДЕЛИЕ ЗАЩИЩАЮЩЕГО ОТ ПОДДЕЛОК СОСТАВА, ВКЛЮЧАЮЩЕГО АНТИСТОКСОВСКИЙ ЛЮМИНОФОР

Изобретение предназначено для полиграфической промышленности и может быть использовано при изготовлении документов, этикеток, марок, надписей на товарах и упаковках. Готовят суспензию, содержащую связующее, например нитроцеллюлозу, пигмент, растворитель и 1,5-7 мас.% антистоксовского люминофора. Люминофор, предварительно обработанный ультразвуком в растворе полярной жидкости при частоте 22-40 кГц 20-30 мин, не меняет яркости после такой обработки. Поверхность изделия непосредственно перед нанесением суспензии активируют воздействием электрического или коронного разряда. Суспензию наносят на изделие с помощью валика типографским, предпочтительно флексографским, способом. Полученные метки дают яркое, легко обнаруживаемое свечение в ИК-лучах. Люминофор может быть использован с любым связующим и пигментом, что расширяет область применения заявленного способа в зависимости от вида продукции и требований потребителя. 3 з.п. ф-лы.

ВЫСОКОЭФФЕКТИВНЫЙ ФОТОЛЮМИНЕСЦЕНТНЫЙ МАТЕРИАЛ И СПОСОБ ЕГО ПРОИЗВОДСТВА

... 1. Высокоэффективный фотолюминесцентный материал, получаемый перемешиванием и отверждением, по меньше мере, прозрачного основного вещества и компонента, являющегося фотолюминесцентным пигментом, причем прозрачное основное вещество имеет вязкость 3 Па·с (20°С) или более и присутствует в концентрации от 7 до 95 мас.%, а компонент, являющийся фотолюминесцентным пигментом, имеет средний размер частиц от 100 до 2000 мкм. 2. Высокоэффективный фотолюминесцентный материал по п.1, в котором прозрачное основное вещество является смолой, стеклом или и тем и другим. 3. Высокоэффективный фотолюминесцентный материал по п.1, который дополнительно включает компонент, являющийся пигментом, иным, чем фотолюминесцентный пигмент. 4. Высокоэффективный фотолюминесцентный материал по п.3, в котором В/А, определяемое как массовое соотношение компонента А, являющегося фотолюминесцентным пигментом, и компонента В, являющегося иным пигментом, составляет 3,0 или менее. 5. Высокоэффективный фотолюминесцентный материал ...

Люминофорная суспензия

Способ получения дневных флуоресцентных пигментов

СПОСОБ ПОЛУЧЕНИЯ ДНЕВНЫХ ФЛУОРЕСЦЕНТНЫХ ПИГМЕНТОВ сополи-;конденсацией меланина с п-толуолсульфамидом , формалином и органическим красителем при повышенной температуре и атмосферном давлении с последукнцей отгонкой вьщеляющейся воды при остаточном давлении 50 ЮОммрт .ст., отличающийс я тем, что, с целью повышения яркости и чистоты цвета в области 570-575 нм, в качестве органического красителя используют N-аминоимид нафталевой кислоты общей формулы О )}Н2 О где R - (CH3)2N-, (ИОСН СН )jN-, О (Л и сополиконденсацию ведут при следующем соотношении реагентов, мае. 8,5-12,5 Мепамин п-Толуолсульф44-50 амид 35-40 Формалин N-Аминоимид 4а нафталевой 4 кислоты укаliU 2,5-3,5 занной формулы 00 :при 140-145 С в течение 1,5-2 ч.

CПOCOБ ПOЛУЧEHИЯ ПИГMEHTИPOBAHHOГO ЛЮMИHOФOPA KPACHOГO ЦBETA CBEЧEHИЯ HA OCHOBE OKCИCУЛЬФИДA ИTTPИЯ

Способ повышения прилипания неорганических люминесцентных или светорассеивающих порошковых материалов, электростатически нанесенных на внутренние стенки колб источников света

Способ получения суспензии цинкосульфидного люминофора

Изобретение относится к люминесцентной технике, в частности к способам получения суспензий люминофоров, и может быть использовано при изготовлении электролюминесцентных порошковых экранов постоянного тока. Способ включает разделение порошка люминофора по фракциям при соотношении размеров частиц крупной, средней и мелкой фракций 1:(0,40-0,41):(0,20- 0,22), нанесение активной фазы сульфида меди на каждую фракцию, смешивание их в объемном соотношении, обес- печивающем плотнейшую упаковку частиц этих фракций, а именно, об,%; крупная 91,43; средняя 6,50; мелкая - остальное, и последукяцее введение порошка лкминофора в разбавленный раствор связующего вещества. Количество растворителя зависит от конкретного способа нанесения суспензии на подложку. Изобретение позволяет повысить яркость свечения электролюминесцентных экранов и эффективность их свечения в 1,1 раза, уменьшить не- g равномерность свечения экранов в 1,3. раза и получить при толщине нанееенг ного слоя на подложке 50 мкм одновременно ...

Люминофорная суспензия

Neue Klasse von stabilisierenden Verbindungen für Phosphorschirme

Mit Pigment überzogener roter Leuchtstoff und Verfahren zur Herstellung desselben.

Producing composite material from at least one phosphor and a polymer matrix useful for producing lighting means comprises synthesizing luminescent phosphor nanoparticles in ionic liquid, and polymerizing ionic liquid

Producing a composite material from at least one phosphor and a polymer matrix, comprises (a) carrying out microwave mediated in situ synthesis of luminescent phosphor nanoparticles in a polymerizable ionic liquid, and (b) polymerizing the polymerizable ionic liquid or (ai) evaporating the phosphor or a starting compound, (b1) gas phase depositing the phosphor as the luminescent nanoparticles in a polymerizable ionic liquid, and (c1) polymerizing the polymerizable ionic liquid. An independent claim is also included for the composite material produced by the above mentioned method.

Verfahren zur Herstellung eines lumineszenten Artikels.

Verfahren zur Herstellung einer Fluchtwegmarkierung sowie eine solche

Erdalkalimetallsilikat-Leuchtstoffe und Verfahren zur Verbesserung ihrer Langzeitstabilität

Die vorliegende Erfindung betrifft Erdalkalimetallsilikat-Leuchtstoffe mit einer verbesserten Langzeitstabilität sowie ein entsprechendes Verfahren zur Verbesserung der Langzeitstabilität von Erdalkalimetallsilikat-Leuchtstoffen. Bei dem erfindungsgemäßen Leuchtstoff handelt es sich um einen Leuchtstoff mit einem Grundgitter gemäß der allgemeinen chemischen Formel EASiO, mit x, y, z > 0. Der Bestandteil EA ist durch ein oder mehrere Erdalkalimetalle gebildet. In das Grundgitter ist ein Aktivator, wie beispielsweise Euoder Mndotiert. Der Leuchtstoff hat die grundlegende Eigenschaft, Strahlung in einem ersten Wellenlängenbereich zu absorbieren und Strahlung in einem zweiten sich vom ersten Wellenlängenbereich unterscheidenden Wellenlängenbereich zu emittieren. Der Leuchtstoff ist in Form von Körnern ausgebildet. Erfindungsgemäß sind die Körner des Leuchtstoffs an ihrer Oberfläche dadurch chemisch modifiziert, dass zumindest Teile ihrer Oberflächen durch eine chemische Verbindung der allgemeinen ...

WELLENLÄNGENKONVERTIERENDE REAKTIONSHARZMASSE UND LEUCHTDIODENBAUELEMENT

PHOSPHORESZIERENDE THERMOPLASTISCHE MASSE

Verfahren zur Nachbehandlung eines aktivierten Leuchtstoffes

Schirm zum Speichern eines Strahlungsbildes, radiographischer Verstärkungsschirm und Verfahren zur Herstellung desselben

VERFAHREN ZUM ANBRINGEN EINER GUT HAFTENDEN, GLATTEN, SCHLECHT REFLEKTIERENDEN, LEITENDEN SCHICHT AUF EINER ISOLIERENDEN OBERFLAECHE

Improved storage and recovery of inform-

The luminescent substance forming the imaging part of the method of DT 1499575 is supplied with a light scattering material, which does not absorb or only slightly absorbs excitation- or photo luminescent radiations. The scattering materials has a refractive index which is very much larger than that of the luminescent substances, and pref. consists of TiO2, BaSO4 or NaCl, but may also be gas bubbles.

VERFAHREN ZUR BESCHICHTUNG EINES LUMINESZENTEN MATERIALS

VERFAHREN ZUR HERSTELLUNG EINES LEUCHTSCHIRMES

METHOD OF PRODUCING LUMINESCENT SCREENS, LUMINESCENT SCREENS PRODUCED BY THIS METHOD AND CATHODE-RAY TUBES INCLUDING SUCH LUMINESCENT SCREENS

Method for manufacturing a luminescent screen

In order to improve the adhesion of luminescent material on a glass support it is proposed to add boron trioxide to the suspension of luminescent material sensitised with a diazo compound.

LEUCHTSTOFFFOLIE

ANZEIGEVORRICHTUNGEN MIT KATHODENLUMINESZENZ

Detektionsschicht umfassend beschichtete anorganische Nanopartikel

Die vorliegende Erfindung betrifft eine Detektionsschicht umfassend beschichtete anorganische Nanopartikel, wobei die anorganischen Nanopartikel Liganden und/oder Dispergatoren aufweisen und mit einem organischen Halbleitermaterial beschichtet sind, wobei ein Gewichtsverhältnis von Nanopartikel zu Ligand und/oder Dispergator in der Detektionsschicht größer oder gleich 80:20 ist ...

Flüssige Seifenblasenlösung zur Herstellung leuchtender Seifenblasen

Method for producing a suspension of luminescent material

It is proposed, prior to preparing a suspension for a photoprint process, to disperse a luminescent material in an aqueous medium containing a ketone and amidosulphonic acid or acrylic acid.

Sedimentation process for manufacturing a luminescent screen

In order to achieve an increased packing density of a luminescent screen manufactured by sedimentation it is proposed to admix the electrolyte with glycerol and/or ethylene glycol.

Leuchtstoffteilchen, Verbundstoff, lichtemittierende Vorrichtung und Verfahren zur Herstellung von Leuchtstoffteilchen

Ein α-Sialon-Leuchtstoffteilchen, das Eu enthält, wird breitgestellt. Auf einer Oberfläche des α-Sialon-Leuchtstoffteilchens ist mindestens ein Schlitz ausgebildet. Das α-Sialon-Leuchtstoffteilchen wird vorzugsweise durch einen Rohmaterial-Mischschritt, einen Erhitzungsschritt, einen Pulverisierungsschritt und einen Säurebehandlungsschritt hergestellt.

Beschichtungsverfahren

Nanokristall, Verfahren zu seiner Herstellung und elektronische Vorrichtung damit

Anorganische Nanokristalle mit einer organischen Beschichtung und deren Vorbereitungsverfahren

Improvements in low pressure mercury vapour fluorescent electric discharge lamps

The luminescent coating of a mercury vapour lamp comprises not more than 5 mg. per sq. cm. of an alkaline earth phosphate phosphor, in which not more than 20% of the particles exceed 10 m diameter, not more than 2% exceed 15 m , and not more than 4% are less than 3 m . The phosphor may be a halo-, ortho-, or pyrophosphate of calcium, strontium, barium or magnesium, and may be activated by antimony and manganese, or tin. Specifications 927,351 and 927,354 are referred to.

Luminescent regenerated cellulose fibre

Improvements in and relating to electric discharge lamps having fluorescent materials mounted therein

... 518,578. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., ANDERSON, J. T., and WELLS, R. S. Aug. 25, 1938, No. 25026. [Class 39 (i)] In a lamp the discharge takes place between concentric envelopes A, B the whole or part of the outer surface of the envelope A being coated with fluorescent material D ; this may be in strips and different materials may be used in one lamp. The inner surface of the envelope A may be mirrored. According to the Provisional Specification part of the inner wall of tube or partitions within the tube may carry luminescent materials.

A water-soluble fluorescent material for colour picture tubes and a process for manufacturing the same

Improvements in and relating to electric-discharge tubes

... 522,510. Signs. WILLIAMS, H., and MAPLE & CO.. Ltd. April 27, 1939, No. 12644. [Class 3 (ii)] [Also in Groups XL] A gas filled electric discharge tube contains indicia in the form of electrically conductive bodies spaced apart from each other lengthwise of the tube, insulated from both electrodes, and coated or otherwise provided with material which luminesces under the action of the discharge. As shown in Fig. 3, the gas freed copper letter 6 is provided at the rear with lugs bent to form spring clips 15 which engage glass tubes 9, 10 as shown in Fig. 2, which is a transverse section across the length of the tube 1. These glass tubes 9, 10 are maintained in position by sprmg strips of gas freed stainless steel provided with C- shaped portions 11, 12 and bent over portions 13, 14. One of the tubular electrodes 3 is supported on a wire 4 from an external contact 5. The indicia are preferably slightly off the axis of the tube.

Improvements relating to the production of luminescent screens

... 744,898. Luminescent materials: discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. June 11, 1953 [June 19, 1952], No. 15467/52. Class 39 (1). A process for producing a luminescent screen on the envelope of an electric discharge device or lamp, for example the outer glass jacket of a H.P.M.V. lamp, comprises coating the envelope with a suspension in an organic binder, e.g. nitro-cellulose, of a powdered luminescent material, e.g. manganese-activated magnesium arsenate, heating the envelope in air or oxygen at 400-550‹ C. for about five minutes to remove the binder, heating under vacuum to 450‹ C. for 5 minutes to outgas the envelope, admitting pure dry oxygen to the envelope to a pressure of about one half atmosphere whilst the envelope is in a heated condition from the outgassing process, allowing the oxygen to remain in the envelope until the envelope has cooled to a temperature of about 150‹ C., evacuating the envelope, filling it and sealing it off. Specifications 516,868 and 635,491 ...

Improvements in or relating to luminous electric discharge tubes

... 431,408. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and RYDE, J. W., c/o General Electric Co., Wembley, Middlesex. Jan. 8, 1934, No. 670. Drawings to Specification. [Class 39 (i)] [See also Group XI] A luminous discharge tube is at least partly surrounded by a light-diffusing envelope, and luminescent material is disposed between the discharge and the diffusing envelope on a plurality of separate surfaces which are such that light to be diffused can pass between them. Strips or patches of luminescent material may be applied to the wall of the discharge tube, the inner wall of a tubular diffusing envelope, or upon a transparent cylinder located between them. Alternatively, strips of transparent or reflecting material coated with luminescent material may be inserted between the tube and the diffusing envelope. Any combination of the above named constructions may be used. In the case of double-walled discharge lamps, the outer envelope may be made diffusing ...

PHOSPHORESCENT MATERIAL FOR ELECTROLUMINESCENT DISPLAY

IMPROVEMENTS IN OR RELATING TO RADIATION DETECTORS

Electroluminescent device

Cyanoalkylated pullulan polymeric resins and their admixtures with other cyanoalkylated resins are useful as dielectric binders in electroluminescent devices. The resins can be used in either the phosphor/binder layer or the barium titanate/binder layer or both. The resultant electroluminescent devices have improved brightness.

Red-luminous phosphor

A red-luminous phosphor [Y2OyS: Eu + (Zn, Cd) S:Ag] for use in color televisions is obtained by attaching a small amount of red-luminous pigment [(Zn1 Cd)S;Ag] to the surface of europium-activated red-luminous phosphor (Y2O2S:Eu), whereby the red-luminous phosphor having high luminosity and the color purity and color contrast improved is provided. ...

Coated phosphor particles

The surface of phosphor particles is coated with a composition that comprises SiO2 and at least one element of indium, zirconium and antimony. The coating treatment improves coating characteristics when the particles form a phosphor screen on a cathode-ray tube. The phosphor may be a zinc sulfide-; zinc silicate-; zinc phosphate-; yttrium trisulphide-; yttrium oxide-; indium borate-based phosphor. The coating composition may contain zinc and/or aluminium and the metals indium, zirconium and antimony may be present in the form of a compound e.g. InCl3, In2(SO4)3, In(NO3)2, ZrO(NO3)2, ZrCl2, ZrO(NO3)2, Zr(SO4)2, SbCl3, Sb2(SO4)3. The surface treatment method comprises adding an aqueous solution of silicate or colloidal silica, and a solution containing at least one of indium, antimony or zirconium to a suspension containing phosphor particles and adjusting the pH such that the silica and metal adhere to the particles.

Fluorescent layers

... 1,139,014. Luminescent screens. EASTMAN KODAK CO. 6 July, 1967 [8 July, 1966], No. 31099/67. Heading C4S. [Also in Division G2] Fluorescent layers for use in photographic materials are obtained by dissolving a waterinsoluble organic fluorescent compound and a water-insoluble carrier for said fluorescent compound which forms a solid solution therewith, e.g. polymers of styrene and copolymers thereof with alkyl acrylates or poly-vinyl benzoate, in a solvent which is water-soluble, e.g. ethylacetate, or contains a water-soluble component, dispersing the solution into a colloidal state in an aqueous solution of an hydrophilic film-forming binder, e.g. gelatine, casein, cellulose, or vinyl polymers, washing the dispersion with water to remove the water-soluble solvent, coating the washed dispersion on a support and drying. The fluorescent layer may be a silver halide emulsion layer, an overcoat or undercoat layer for such an emulsion layer or a backing layer of a photographic silver halide material ...

METHOD FOR RECLAIMING PIGMENT-ATTACHED RED-EMITTING PHOSPHOR

A composite radiation dosimeter detector

A composite radiation dosimeter detector element comprises a polyethersulphone matrix in which are incorporated particles of a thermoluminescent phosphor, e,g. lithium fluoride, the matrix being formed as a layer (preferably as a thin film) on and bonded to or very strongly adhered to the surface of a backing layer (preferably a thin film of metal) which is thermally conductive and substantially thermally and mechanically stable at working temperature.

Improvements in or relating to the coating of low-voltage discharge lamps with luminescent substances

A process for coating low-voltage discharge lamp tubes with luminescent substances suspended in an aqueous liquid which contains binders preferably in solution comprises internally wetting the tubes with water without binder and not followed by drying before the suspension is introduced into the tubes. The binders can be one or more water-soluble synthetic resins such as polymerisation products of ethylene oxide. The tubes can be cleansed before or during the wetting steps, and the cleansing can be effected in water with a cleansing agent, such as hydrofluoric acid or chromosulphuric acid, followed by rinsing in distilled water. The tubes may then be dried and then wetted and coated. The tubes can be cleansed, wetted and coated in a single automatic machine having a number of working stations through which the tubes pass in turn, the tubes being finally dried.

Self activated rare earth oxide nanoparticles

Compounds having the formula Z 2 O 3 :Zx+ where Z is a rare earth metal and x is from 2 to 4, and nanoparticles thereof together with a process for their production and their uses are disclosed.

Monochromatic picture tube faceplate.

A monochromatic picture tube whose faceplate has a transmittance of 17 to 23% is provided. In order to obtain the same transmittance as described above, black di-iron trioxide is coated on phosphor grains to form a phosphor screen on the faceplate. Therefore, a picture on the screen results in contrast without eyestrain.

Improvements in or relating to gas or vapour filled electric discharge tubes

... 515,464. Discharge lamps. OERENSOFI, N. S. March 5, 1938, No. 6914. [Class 39 (i)] [Also in Group XI] In a discharge lamp arranged within an outer envelope parts of the surface of which are covered with fluorescent material these parts are flat or slightly curved and are arranged obliquely to the light from the discharge, so that the resulting illumination is composed of the light from the discharge and the light from the fluorescent substance, Fig. 1, shows a lamp 1 with a corrugated outer envelope 2, the fluorescent material 2a being arranged on the flanks of the corrugations. The corrugations may run longitudinally, instead of round the lamp. Fig. 3 shows an envelope formed as a number of bell-shaped elements decreasing downwards.

Improvements relating to fluorescent electric discharge lamps

... 757,565. Fluorescent discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. May 25, 1954 [May 28, 1953], No. 15432/54. Class 39 (1). A film of pure magnesia interposed between the inside of the envelope and the fluorescent layer has a reflectance to visible radiation between 10 and 40 per cent, corresponding to 0.07-0.24 mg/cm2 of coated surface. The magnesia acts as a reflector of U-V radiation and reduces the optimum thickness of luminescent material. The magnesia may be applied by smoking from burning magnesia, electrostatic deposition, flushing with powder, flushing or centrifuging in a liquid vehicle, or spraying a decomposible magnesium salt on to a hot tube; in the preferred method a slurry in nitrocellulose and butyl acetate is flushed over the tube and allowed to dry being inverted half-way through. The luminescent material, e.g. calcium halophosphate, is then applied by flushing in a suspension in nitrocellulose and naphtha and heating to 400-600‹ C. Optimum reflectances ...

Improved process for obtaining phosphorescence in luminous paints

... 208,723. Risler, J. Dec. 21, 1922, [Convention date]. No Patent granted (Sealing fee not paid). Addition to 207,786. Phosphorescence, apparatus for lighting by.-A modification of the process described in the parent Specification, in which a vacuum tube with or without electrodes and filled with rarefied gas such as argon, nitrogen or air is coated internally or externally with a luminous paint containing a phosphorescent sulphide, or having the sulphide incorporated in the glass of the tube, whereby a continuous luminous effect is obtained. The sulphide may be mixed with a varnish such as " amylacetic " varnish, and the luminous coating is preferably covered with an impermeable and fire-proof coating comprising cellulose acetate, alcohol, triacetine, acetone and tetrachlorethane. Reference has been directed by the Comptroller to Specification 4098/10, [Class 39 (i), Electric lamps, Arc &c.].

AN IMPROVED ELECTROLUMINESCENT DEVICE

Improvements in or relating to Flourescent Magnetic Particles

... 1,177,703. Uses of luminescence. MAGNAFLUX CORP. 1 Aug., 1967 [27 June, 1967], No. 35348/67. Heading C4S. [Also in Division H1] Aggregates for detecting flaws each comprise a core of adhering magnetic and fluorescent particles encapsulated in a resin. The aggregates are made by mixing magnetic and fluorescent powders to form the cores, dissolving the resin in a water-miscible volatile solvent, adding the cores to form a slurry then adding water to precipitate the resin as a coating, on the cores. Magnetic powders are Fe 2 O 3 , Fe 3 O 4 , carbonyl iron and ferrites. Fluorescent powders comprise particles of a melamine- or benzoguanamine - sulphonamide - formaldehyde resin containing a fluorescent dye, e.g. 2,2-dihydroxy 1,1-naphthalolazine together with fluoranthane to increase fluoresence. The coating resin may be a thermoplastic polyamide derived from the reaction of dimerized linoleic acid and a polyamine, e.g. ethylene diamine of molecular weight 6000-9000 and a melting point of 105 ...

Improvements in electric discharge lamps

... 484,839. Daylight lamps. GENERAL ELECTRIC CO., Ltd., BOWTELL, J. N., and JENKINS, H. G. Feb. 16, 1937, No. 4641. [Class 75 (iv)] Light approximating to daylight is produced by the association of a high-tension electric discharge lamp in which that variety of zinc silicate which emits yellow-white luminescent light is excited to luminescence by a low pressure mercury discharge, with a high-tension electric neon discharge lamp, which may be associated with luminescent material, such as calcium tungstate or willemite, excited by the neon discharge. There is substantially no other component. Specifications 457,126 and 457,486, [both in Group XL], are referred to.

Improvements in electric discharge lamps

... 501,381. Discharge lamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen) Dec. 10, 1937, No. 34259. Addition to 459,323. [Class 39 (i)] In a lamp as described in the parent Specification having the luminescent material within the envelope, the inner surface of the envelope is etched or otherwise made diffusing.

Improvements in or relating to luminescent materials

... 501,741. Luminescent screens. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 30, 1937, No. 23675. Convention date, Aug. 29, 1936. Drawings to Specification. [Class 39 (i)] The luminescent properties of materials which have been impaired by fine grinding are improved by immersion in an easily volatilized acid solution, and thereafter drying so as to remove the solution. Screens so treated are more durable under electron bombardment. The concentration of the solution, time of immersion, &c. are determined empirically. The particles are ground small enough to pass through a screen of 200 to 400 mesh per inch. Synthetic willemite (Zn2Sio4Mn), cadmium phosphate, zinc carbonate, sulphate, or sulphide, uranyl fluoride, and calcium sulphide are mentioned as luminescent materials ; and for removal of the surface layer, solutions of carbonic, nitric, hydrochloric; phosphoric, or oxalic acid, and hydrogen sulphide. Material so treated may be applied to a support as by spraying, or with a brush, or by ...

Improvements in or relating to radiation detectors

A radiation dosimeter comprises a thermoluminescent phosphor incorporated in matrix of polyethersulphone. The dosimeter is preferably a thin film formed by spreading a suspension of a powdered phosphor in a solution of polyethersulphone onto a flat surface. The solvent for the polyethersulphone is a mixture of a n-methyl-2-pyrrolidone and xylene in equal proportions. A thin, inert film of polyethersulphone can be cemented to one surface of the dosimeter so as to provide a skin dosimeter.

Method of and means for coating surfaces by electro-deposition

... 866,780. Coated paper; coated fabrics; seaming non-metallic sheet materials. COMMONWEALTH OF AUSTRALIA. June 4, 1957 [June 14, 1956; March 26, 1957], No. 17809/57. Drawings to Specification. Classes 42 (1), 96, and 140. [Also in Groups XVI, XX, XXIII and XXXVI] A coherent deposit is formed on a surface by electrophoresis (see Group XXXVI) from a dispersion in an electrically-insulating carrier liquid of a particulate material coated as by ball-milling with a control agent which effects maintenance of a chosen surface charge when the particles are suspended in the carrier liquid. Welding plastics.-Sheets of plastic arranged on a conducting former are joined together by such an electrophoretic deposition process along the gaps between the sheets using the former as the electrode to which the particles migrate. A suitable dispersion comprises methyl methacrylate in chloroform. The surface to be coated may form one electrode in the coating bath or may be disposed between positive and negative ...

Improvements in and relating to fluorescent lamps, fluorescent lamp coatings, coating suspensions for coating fluorescent lamps and methods of coating fluorescent lamp tubes

A coating suspension for fluorescent lamps comprises a powdered phosphor, between about 0.05 and 2 per cent of highly purified amorphous silica by weight of the phosphor, and a suspending vehicle. The phosphor has a particle size of about 6 microns and the silica a particle size of about 0.02 micron. The suspending vehicle can be a mixture of Armeen CD, which contains several primary amines, and an ethyl cellulose solution containing dibutyl phthalate, xylol and butanol. Proportions are given. The suspension is allowed to flow down the inside of the lamp envelope which is then dried and baked in a furnace for about 1 minute at about 500 DEG C. Specifications 691,127 and 721,827, [both in Group XL (a)], are referred to.

Phosphorescent plastics compositions

Thermoplastic composition having a phosphorescent effect, particularly for the production of flexible labels, comprises a resin of low polymerisation point e.g. PVC, a plasticiser e.g. butylbenzyl phthalate and polypropenyl glycol adipate, a stabilizer having absorbancy to U.V. e.g. dicyandiamide, and a luminescent pigment encapsulated in polyvinyl alcohol e.g. Zn/CdS : Cu. A lubricating agent e.g. ethyl palmitate and a filler e.g. talc, may be included in the composition.

Improvements in or relating to screens responsive to radiation

... 606,819. Coating glass. CINEMA-TELEVISION, Ltd., and LANCE, T. M. C. Jan. 7, 1946, No. 571. [Class 56] [Also in Group XL (a)] A method of manufacturing a luminescent screen responsive to cathode rays or X-rays comprises binding particles of luminescent material to a supporting surface by applying finely divided glass and the particles in a dry state to the supporting surface and heating the glass until it melts. The glass is of low-melting point and can be mixed with the particles prior to deposition on the supporting surface or the glass and the particles can be deposited separately on the supporting surface. In one example finely powdered low-melting point glass is mixed with dry fluorescent powder, e.g. zinc beryllium silicate and the mixture is deposited on to a glass plate through a silk screen by the silk screen process. The plate is then placed in a furnace, the temperature is raised until the glass melts and the plate is then removed. A rectangular screen with rounded corners can ...

INORGANIC NANO-CRYSTALS WITH AN ORGANIC COATING AND THEIR PREPARATION PROCEDURES

SENSORELEMENT ZUR BESTIMMUNG DES O2-GEHALTES EINER PROBE

PROCEDURE FOR THE PRODUCTION OF A BARIUM MAGNESIUM ALUMINATE PHOSPHOR FOR BACKGROUND LIGHTING LAMP AS WELL AS THEREBY MANUFACTURED PHOSPHOR

UVACTIVE RAIN ADVICE CELLULOSE FIBERS

SENSOR ELEMENT FOR THE DETERMINATION OF THE CO2 CONTENT OF A SAMPLE AS WELL AS PROCEDURE FOR THE PRODUCTION OF THE SAME

KERN-MANTEL NANO-PARTICLE FOR (F) RET TEST PROCEDURE

PROCEDURE FOR THE PRODUCTION OF A PHOTOLUMINESZENTEN MATERIAL AND SO RECEIVED MATERIAL

LIGHT-ACCUMULATING SHINING ROAD MARKING MATERIAL AND ROAD CONSTRUCTION

UV-AKTIVE REGENERATCELLULOSEFASERN

REVERSIBLE ONE THERMAL CHROME COMPOSITIONS

PICTURE-WITNESSING SCREEN FOR ELECTROPHORESIS AND DEVICE TO THE REPRODUCTION OF THE PICTURE

PROCEDURE FOR THE MEASUREMENT OF THE RADIOACTIVITY OF A SAMPLE USING A REVERSIBLE FIXED PHASE LIQUID PHASE SCINTILLATOR.

LICHTAUFNAHME MATERIALEN AND FISHING TACKLE WITH THIS MATERIALEN

FLOURESZIERENDER SURFACE FOR ROADS, PARKING LOTS ETC. OF WHICH WITH LIGHTING WITH ULTRAVIOLETEM LIGHT FLUORESZIERT

Lighting tube with fluorescent indications

PHOSPHORESCING THERMOPLASTIC MASS

LUMINESCENCE-ABLE COATING MASS

Electrical gas-discharge tube.

IMPROVED PHOSPHORUS COMPLEX WITH HIGH BRIGHTNESS

THIN SECTIONS FROM DIAMOND-WELL-BEHAVED GLASS

PROCEDURE FOR THE PRODUCTION OF INTERCONNECTIONS POLYMER PARTICLES WITH FLUORESCENCE COLORING MATERIAL

Phosphor member, method of manufacturing phosphor member, and illuminating device

In the present invention, provided is a phosphor member capable of improving a yield and an extraction rate, in addition to high environmental tolerance, high heat resistance, high durability and a high color rendering property, by which variations of color and an amount of light are reduced, and also provided are a method of manufacturing the phosphor member and an illuminating device. Disclosed is a phosphor member prepared separately from an LED light source constituting a white illuminating device, wherein the phosphor member possesses phosphor particles and an inorganic layer having been subjected to coating and a heat treatment.

Surface-modified silicate luminophores

A surface-modified silicate luminophore includes a silicate luminophore and a coating includes at least one of (a) a fluorinated coating including a fluorinated inorganic agent, a fluorinated organic agent, or a combination of fluorinated inorganic and organic agents, the fluorinated coating generating hydrophobic surface sites and (b) a combination of the fluorinated coating and at least one moisture barrier layer. The moisture barrier layer includes MgO, Al 2 O 3 , Y 2 O 3 , La 2 O 3 , Gd 2 O 3 , Lu 2 O 3 , and SiO 2 or the corresponding precursors, and the coating is disposed on the surface of the silicate luminophore.

Photovoltaic devices

A photovoltaic device including a composite down-converting layer disposed on the device, is presented. The composite down-converting layer includes down-converting material particles dispersed in a matrix. The size of the down-converting material particles is a function of a difference in respective refractive indices (Δn) of the down-converting material and the matrix such that: (i) for Δn less than about 0.05, the size of down-converting material particles is in a range from about 0.5 micron to about 10 microns, and (ii) for Δn at least about 0.05, the size of down-converting material particles is in a range from about 1 nanometer to about 500. A photovoltaic module having a plurality of such photovoltaic devices is also presented.

Modification of layered silicates for luminescence activation

The invention relates to a method for producing a luminescent layered silicate composite. The method according to the invention is characterized in that at least one luminescent dye, in particular fluorescent dye, on the basis of at least one complex, essentially a chelate complex, of at least one element of the rare earth elements (“rare earth complex”) is introduced between and/or stored in at least two layers of at least one layered silicate (“layered silicate layers”) respectively or that at least one luminescent dye, in particular fluorescent dye, on the basis of at least one complex, essentially a chelate complex, of at least one element of the rare earth elements (“rare earth complex”) is combined with a layered silicate to form a composite. The luminescent layered silicate composite according to the invention can be used for marking objects, for example plastic-based objects, or in the field of bioanalysis.

Material for organic electroluminescence device and organic electroluminescence device using the same

Provided are an organic electroluminescence device, which: shows high luminous efficiency; is free of any pixel defect; and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound of a specific structure having a π-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, or oxygen atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.

Device material for hole injection transport layer, ink for forming hole injection transport layer, device comprising hole injection transport layer, and method for producing the device

Disclosed is a device material for a hole injection transport layer. A fluorine-containing organic compound is attached to the surface of a transition metal-containing nanoparticle or nanocluster which contains at least a transition metal oxide. Also disclosed are a device and an ink for a hole injection transport layer, the device and ink including the device material each, and a method for producing the device.

Solid-state light emitting devices and signage with photoluminescence wavelength conversion and photoluminescent compositions therefor

A photoluminescent composition (“phosphor ink”) comprises a suspension of particles of at least one blue light (380 nm to 480 nm) excitable phosphor material in a light transmissive liquid binder in which the weight loading of at least one phosphor material to binder material is in a range 40% to 75%. The binder can be U.V. curable, thermally curable, solvent based or a combination thereof and comprise a polymer resin; a monomer resin, an acrylic, a silicone or a fluorinated polymer. The composition can further comprise particles of a light reflective material suspended in the liquid binder. Photoluminescence wavelength conversion components; solid-state light emitting devices; light emitting signage surfaces and light emitting signage utilizing the composition are disclosed.

Syntheses of ultra-bright fluorescent silica particles

The object of the invention is to producing ultras bright fluorescent silica particles by synthesizing large nanopore silica particles with self sealed channels/pores and then stopping the synthesizing before large nanopore silica particles have been formed, wherein said sintering solution has produced nanoparticles. The large nanopore silica particles are micron size. The synthesizing is stopped by diluting said synthesizing solution with a neutralizing medium such as an aqueous solution of definite acidity of pH7 and higher an exemplary value of pH11 (sodium hydroxide). The time range for stopping the synthesizing ranges from tens of seconds to ten of minutes.

Light-emitting element

Provided is a light-emitting element with high external quantum efficiency, or a light-emitting element with a long lifetime. The light-emitting element includes, between a pair of electrodes, a light-emitting layer including a guest material and a host material, in which an emission spectrum of the host material overlaps with an absorption spectrum of the guest material, and phosphorescence is emitted by conversion of an excitation energy of the host material into an excitation energy of the guest material. By using the overlap between the emission spectrum of the host material and the absorption spectrum of the guest material, the energy smoothly transfers from the host material to the guest material, so that the energy transfer efficiency of the light-emitting element is high. Accordingly, a light-emitting element with high external quantum efficiency can be achieved.

Production method of thermoplastic resin composition, molded body, and light emission body

Disclosed is a production method of a thermoplastic resin composition which has a good light emission property of visible light by ultraviolet irradiation, the production method comprising: compounding 0.001 to 50 parts by mass of at least one of metal compound (B) selected from a metal complex (B1) and a metal halide (B2), and 0.001 to 30 parts by mass of a polyalkylene glycol compound (C), with respect to 100 parts by mass of a thermoplastic resin (A); and heating it at a temperature of 100 to 320° C.

Photoluminescent fibers, compositions and fabrics made therefrom

Disclosed are photoluminescent fibers containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials which emit electromagnetic energies to give an emission signature. Also disclosed are the use of the inventive fibers, fabrics made therefrom, and objects containing the fiber.

Color stable manganese-doped phosphors

A lighting apparatus capable of emitting white light includes a semiconductor light source; and a phosphor material radiationally coupled to the light source. The phosphor material includes a color-stable Mn +4 doped phosphor prepared by a process including providing a phosphor of formula I; A x [MF y ]:Mn +4   I and contacting the phosphor in particulate form with a saturated solution of a composition of formula II in aqueous hydrofluoric acid; A x [MF y ];  II wherein A is Li, Na, K, Rb, Cs, NR 4 or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; R is H, lower alkyl, or a combination thereof; x is the absolute value of the charge of the [MF y ] ion; and y is 5, 6 or 7. In particular embodiments, M is Si, Ge, Sn, Ti, Zr, or a combination thereof.

Luminescent glass, producing method thereof and luminescent device

A luminescent glass comprises glass matrix. Said glass matrix comprises a glass part and a complex part of glass and fluorescent powder, which is embedded in said glass part. Said complex part of glass and fluorescent powder comprises glass material and fluorescent powder dispersed in said glass material. Said fluorescent powder is of cerium-doped yttrium aluminum garnet series. A method for producing the luminescent glass and a luminescent device comprising the luminescent glass are also provided. The luminescent glass and the luminescent device have good luminescence reliability, high luminescence stability and long service life. The method can be carried out at a relatively low temperature.

Led encapsulation resin body, led device, and method for manufacturing led device

An LED encapsulation resin body disclosed in the present application includes: a phosphor; a heat resistance material arranged on, or in the vicinity of, a surface of the phosphor; and a silicone resin in which the phosphor with the heat resistance material arranged thereon is dispersed.

Luminescent particles, methods and light emitting devices including the same

A luminescent particle includes an interior portion of the luminescent particle comprising a luminescent compound that reacts with atmospherically present components and a passivating layer on an outer surface of the luminescent particle that is operable to inhibit the reaction between the luminescent compound and the atmospherically present components.

Light emitting device and method for producing the same

A light emitting device includes a light emitting element that emits primary light and a wavelength conversion unit that absorbs part of the primary light and emits secondary light. In the light emitting device, the wavelength conversion unit includes a plurality of types of phosphors that emit secondary light having wavelengths different from each other, and at least one of the phosphors is a covered phosphor covered with a surface film that reflects secondary light emitted from a phosphor other than the covered phosphor.

Lighting devices with prescribed colour emission

Optical conversion layers based on semiconductor nanoparticles for use in lighting devices, and lighting devices including same. In various embodiments, spherical core/shell seeded nanoparticles (SNPs) or nanorod seeded nanoparticles (RSNPs) are used to form conversion layers with superior combinations of high optical density (OD), low re-absorbance and small FRET. In some embodiments, the SNPs or RSNPs form conversion layers without a host matrix. In some embodiments, the SNPs or RSNPs are embedded in a host matrix such as polymers or silicone. The conversion layers can be made extremely thin, while exhibiting the superior combinations of optical properties. Lighting devices including SNP or RSNP-based conversion layers exhibit energetically efficient superior prescribed colour emission

Optical Element for Correcting Color Blindness

Described herein are devices, compositions, and methods for improving color discernment.

Optical Element for Correcting Color Blindness

Described herein are devices, compositions, and methods for improving color discernment.

Scintillator Crystal Materials, Scintillators And Subterranean Detectors

Methods for pre-treating packaging materials of particular composition for use in conjunction with a scintillation crystal are disclosed. The packaging materials may comprise a reflecting material, an elastomer, a reflecting fluorocarbon polymer, a polymer or elastomer loaded with a reflecting inorganic powder (including a reflecting inorganic powder comprising a high reflectance material selected from the group comprising AlO, TiO, BN, MgO, BaSOand mixtures thereof), or a highly reflective metal foil selected from the group comprising Ag and Al that is chemically compatible with the scintillator crystal. The scintillator crystal may comprise a crystal selected from the group comprising NaI(Tl), LaBr:Ce, La—Cl:Ce, La-halides, and La-mixed halides. The method includes subjecting a scintillator packaging material to a pre-treatment while in package form, said treatment selected from the group consisting of heating to a temperature exceeding a proposed operating temperature of the scintillator package, and placing the packaging material under pressure in a confined space until the packaging material is in final form. 1. A scintillator package for enclosing a scintillator crystal , comprisinga scintillator crystal; andpackaging material subjected to a pre-treatment while in package form, said treatment selected from the group consisting of heating to a temperature exceeding a proposed operating temperature of the scintillator package, andplacing the packaging material under pressure in a confined space until the packaging material is in final form.2. The scintillator package according to claim 1 , wherein both treatments are applied to the packaging material claim 1 , performed either sequentially or simultaneously.3. The scintillator package according to claim 1 , wherein the scintillator crystal comprises a scintillator crystal sensitive to humidity in air.4. The scintillator package according to claim 1 , wherein the treatment comprising heating to the temperature ...

Methods for producing nanoparticles and using same

A method for producing nanocomposite particles is provided. The method comprises supplying an organic phase fluid an organic phase fluid, an aqueous phase fluid, an amphiphile, and a plurality of hydrophobic nanospecies to a nozzle. An electric field is generated proximate the nozzle such that the fluid exiting the nozzle forms a cone jet that disperses into a plurality of droplets. The plurality of droplets are collected, and nanocomposite particles comprising a self-assembled structure encapsulating at least one hydrophobic nanospecies form by self-assembly.

Stress-sensitive material and methods for using same

A stress-sensing material containing a matrix material and a photo-luminescent particle is disclosed, together with adhesives and coatings containing the stress-sensing material. Also disclosed are methods for preparing the stress-sensing material and measuring the stress on an article using the stress-sensing material.

Highly reliable photoluminescent materials having a thick and uniform titanium dioxide coating

Described herein are coated photoluminescent materials and methods for preparing such coated photoluminescent materials. More particularly, provided herein are phosphors coated with titanium dioxide, methods for preparing phosphors coated with titanium dioxide, and solid-state light emitting devices which include phosphors coated with titanium dioxide.

Translucent laminated film and solar cell module using it

To provide a translucent substrate which sufficiently improves the power generation efficiency of a solar cell, and a solar cell module. A translucent laminated film to be provided on the light receiving surface side of a photoelectric conversion layer, which comprises, in order from the light receiving surface side of the photoelectric conversion layer, a translucent substrate which protects the photoelectric conversion layer, a substrate front side wavelength conversion film having a wavelength conversion function to convert a light in a wavelength region in which the photoelectric conversion efficiency is low, which includes a light in a wavelength region in which the transmittance through at least the translucent substrate is low, into a light in a wavelength region in which the photoelectric conversion efficiency is high, and an antireflection film which reduces reflection of the received light.

Anistropic semiconductor nanoparticles

The present invention provides seeded rod (SR) nanostructure systems including an elongated structure embedded with a seed structure being a core/shell structure or a single-material rod element. The SR systems disclosed herein are suitable for use in a variety of electronic and optical devices.

PHOSPHOR-CONTAINING COMPOSITE MATERIAL

A phosphor-containing composite material comprises: an optical excitable film including a releasable adhesive matrix and a phosphor dispersed in the releasable adhesive matrix, the optical excitable film having a surface and a peel adhesion value ranging from 10-200 g/inch as determined by PSTC-1 standard test; and a plastic substrate bonded peelably and directly to the surface of the optical excitable film. 1. A phosphor-containing composite material comprising:an optical excitable film including a releasable adhesive matrix and a phosphor dispersed in the releasable adhesive matrix, said optical excitable film having a first surface and a peel adhesion value ranging from 10-200 g/inch as determined by PSTC-1 standard test; anda first plastic substrate bonded peelably and directly to said first surface of said optical excitable film.2. The phosphor-containing composite material of claim 1 , wherein said releasable adhesive matrix is made from an adhesive material containing a tacky polymer selected from polyacrylic acid resins claim 1 , polyacrylate resins claim 1 , polyisocynate resins claim 1 , and epoxy resins.3. The phosphor-containing composite material of claim 1 , wherein said first plastic substrate is made from a non-tacky polymer selected from polycarbonate claim 1 , polyimide claim 1 , polyethersulfone claim 1 , polyacrylate claim 1 , polyethylene claim 1 , polyethylene terephthalate claim 1 , polyetheretherketone claim 1 , polyethylene naphthalate claim 1 , and polyetherimide.4. The phosphor-containing composite material of claim 1 , further comprising a second plastic substrate claim 1 , said optical excitable film further having a second surface opposite to said first surface claim 1 , said second plastic substrate being peelably bonded to said second surface of said optical excitable film.5. The phosphor-containing composite material of claim 2 , wherein said adhesive material further contains a crosslinking agent selected from epoxy compounds claim ...

Coatings for Photoluminescent Materials

The teachings are generally directed to phosphors having combination coatings with multifunctional characteristics that increase the performance and/or reliability of the phosphor. The teachings include highly reliable phosphors having coatings that contain more than one inorganic component, more than one layer, more than one thicknesses, more than one combination of layers or thicknesses, a gradient-interface between components, a primer thickness or layer to inhibit or prevent leaching of phosphor components into the coatings, a sealant layer to inhibit or prevent entry of moisture or oxygen from the environment, a mixed composition layer as a sealant and multifunctional combination coatings. 1. A coated photoluminescent material , said coating being a multifunctional coating comprising:a photoluminescent material having a surface; and a primer material having a primer thickness on the surface of said photoluminescent material, said primer thickness functioning to at least inhibit a leaching of a component of said photoluminescent material into said coating; and', 'an outermost, sealant material having a sealant thickness that functions to inhibit or prevent oxygen and moisture from diffusing through said coating and into said photoluminescent material;', 'wherein said at least two oxides are selected from the group consisting of metal oxides and semiconductor oxides., 'at least two oxides, the two oxides including2. The coated photoluminescent material of claim 1 , wherein said primer thickness is a discrete layer claim 1 , and said sealant thickness is a discrete layer.3. The coated photoluminescent material of claim 2 , wherein said primer thickness is titanium oxide and said outermost claim 2 , sealant thickness is silicon oxide.4. The coated photoluminescent material of claim 1 , wherein the coating further comprises a gradient-interface thickness between said primer thickness and said outermost claim 1 , sealant thickness.5. The coated photoluminescent ...

Gold and silver quantum clusters in molecular containers and methods for their preparation and use

A composition includes a quantum cluster of Ag m or Au n , one or more protector molecules; and a molecular cavity partially or wholly surrounding the quantum cluster. A method for preparing the quantum clusters includes adding a first amount of glutathione to a gold salt, a silver salt, or a mixture thereof to form a mixture; adding a reducing agent to the mixture to form a precipitate; and mixing the precipitate with a second amount of glutathione and a cyclodextrin to form a composition. Devices are prepared from the quantum clusters, and the devices may be used in methods of authentification of articles.

MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME

Provided are an organic electroluminescence device, which: shows high luminous efficiency; is free of any pixel defect; and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound of a specific structure having a π-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, or oxygen atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device. 4. The material for an organic electroluminescence device according to claim 3 , wherein Ain each of the general formulae (11) and (12) represents a silyl group having 3 to 20 carbon atoms claim 3 , or an aromatic heterocyclic group which has a ring formed of 3 to 24 atoms and which is linked with Lthrough a carbon-carbon bond.5. The material for an organic electroluminescence device according to claim 3 , wherein Ain each of the general formulae (11) and (12) represents an aromatic heterocyclic group which is linked with Lthrough a carbon-carbon bond and which is selected from pyridazine claim 3 , pyrimidine claim 3 , pyrazine claim 3 , 1 claim 3 ,3 claim 3 ,5-triazine claim 3 , carbazole claim 3 , dibenzofuran claim 3 , dibenzothiophene claim 3 , phenoxazine claim 3 , phenothiazine claim 3 , and dihydroacridine.7. The material for an organic electroluminescence device according to claim 6 , wherein Ain each of the general formulae (13) and (14) represents a silyl group having 3 to 20 carbon atoms claim 6 , or an aromatic heterocyclic group which has a ring formed of 3 to 24 atoms and which is linked with Lthrough a carbon-carbon bond.8. The material for an organic electroluminescence device according to claim 6 , wherein Ain each of the general formulae (13) and (14) represents an ...

Artificial Marble Having Natural Textures and Luminescent Patterns and Method of Preparing the Same

An artificial marble includes unsaturated polyester resin (A), compound including silica (B), and luminescent pigment (C). An artificial marble according to a second embodiment includes about 70 to about 95% by weight of a non-luminescent base material (I) comprising unsaturated polyester resin (A), compound including silica (B), and organic/inorganic pigment (C) and about 5 to about 30% by weight of a luminescent amorphous pattern part (II) comprising unsaturated polyester resin (A), compound including silica (B), and luminescent pigment (D). An artificial marble according to a third embodiment includes unsaturated polyester resin (A), compound including silica (B), and amorphous luminescent chip (C).

Electroluminescent Element and Light-Emitting Device

An electroluminescent element which can easily control the balance of color in white emission (white balance) is provided according to the present invention. The electroluminescent element comprises a first light-emitting layer containing one kind or two or more kinds of light-emitting materials, and a second light-emitting layer containing two kinds of light-emitting materials (a host material and a phosphorescent material) in which the phosphorescent material is doped at a concentration of from 10 to 40 wt %, preferably, from 12.5 to 20 wt %. Consequently, blue emission can be obtained from the first light-emitting layer and green and red (or orange) emission can be obtained from the second light-emitting layer. An electroluminescent element having such device configuration can easily control white balance since emission peak intensity changes at the same rate in case of increasing a current density.

Molded Nanoparticle Phosphor For Light Emitting Applications

A molded nanoparticle phosphor for light emitting applications is fabricated by converting a suspension of nanoparticles in a matrix material precursor into a molded nanoparticle phosphor. The matrix material can be any material in which the nanoparticles are dispersible and which is moldable. The molded nanoparticle phosphor can be formed from the matrix material precursor/nanoparticle suspension using any molding technique, such as polymerization molding, contact molding, extrusion molding, injection molding, for example. Once molded, the molded nanoparticle phosphor can be coated with a gas barrier material, for example, a polymer, metal oxide, metal nitride or a glass. The barrier-coated molded nanoparticle phosphor can be utilized in a light-emitting device, such as an LED. For example, the phosphor can be incorporated into the packaging of a standard solid state LED and used to down-convert a portion of the emission of the solid state LED emitter. 1. A method of fabricating a molded nanoparticle phosphor , the method comprising:providing a suspension of nanoparticles in a matrix material precursor; andconverting the suspension to a molded nanoparticle phosphor, the molded nanoparticle phosphor comprising a matrix material and the nanoparticles.2. The method of claim 1 , further comprising coating the molded nanoparticle phosphor with a gas barrier material.3. The method of claim 1 , wherein the matrix material is a polymer or a sol gel.4. The method of claim 1 , wherein the matrix material is an epoxy claim 1 , silicone claim 1 , or acrylate.5. The method of claim 2 , wherein the gas barrier material is a polymer claim 2 , metal oxide claim 2 , metal nitride or a glass.6. The method of claim 2 , wherein the gas barrier material is an epoxy claim 2 , silicone claim 2 , or acrylate.7. The method of claim 1 , wherein the matrix material precursor comprises a monomer formulation.8. The method of claim 7 , wherein the matrix material precursor further comprises a ...

Surface Modified Nanoparticles

Surface-modified nanoparticles are produced by associating ligand interactive agents with the surface of a nanoparticle. The ligand interactive agents are bound to surface modifying ligands that are tailored to impart particular solubility and/or compatibility properties. The ligand interactive agents are crosslinked via a linking/crosslinking agent, such as hexamethoxymethylmelamine or a derivative thereof. The linking/crosslinking agent may provide a binding site for binding the surface modifying ligands to the ligand interactive agents.

Fluorescent lamp with coated phosphor particles

This disclosure features fluorescent lamps that include a phosphor layer including at least one phosphor, which in the past has not been commercially usable in lamps or in some cases suffers from performance problems such as poor brightness. These problems of the phosphors were caused, for example, by mercury ion bombardment or exposure to 185 nm radiation from the discharge. These problems are expected to be avoided by coating particles of one or more of the phosphors, such as using atomic layer deposition in which the coating is not more than 500 nm in thickness. Examples of phosphors that can be coated are yttrium vanadate activated with europium or yttrium vanadate phosphate activated with europium. The coating can be selected from the group consisting of alumina, yttria, lanthanum oxide, magnesium aluminate spinel, magnesium oxide and combinations thereof.

Aromatic amine derivative and organic electroluminescent device using the same

Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.

Sulfur-Containing Phosphor Coated with ZnO Compound

Provided is a novel coated phosphor capable of effectively suppressing the adverse effects of hydrogen sulfide gas generated by the reaction between a sulfur-containing phosphor and moisture in the air. Provided is a sulfur-containing phosphor having a configuration in which ZnO compound containing Zn and O is present on the surface of a sulfur-containing phosphor having a host material which includes sulfur.

NUCLEAR POWER STATION COMPONENT WITH MARKING BY LUMINESCENT NANOPARTICLES, CORRESPONDING READING PROCESS AND ASSEMBLY

A nuclear power station component is provided. The nuclear power station includes a metal structure having an external surface; at least one marking placed on the external surface and encoding information related to the component. The marking includes a plurality of luminescent nanoparticles, each provided to emit optical radiation having a certain emission wavelength when said luminescent nanoparticle is excited with optical radiation having a certain emission wavelength. 116-. (canceled)17. A nuclear power station component comprising:a metal structure having an external surface;at least one marking placed on the external surface and encoding information related to the component, the at least one including a plurality of luminescent nanoparticles, each provided to emit optical radiation having a certain emission wavelength when the nanoparticle is excited with optical radiation having a certain emission wavelength.18. The component as recited in wherein the nanoparticles are arranged in a linear pattern.19. The component as recited in wherein the nanoparticles are arranged in a pattern that extends over one plane.20. The component as recited in wherein the nanoparticles are arranged in a three-dimensional pattern.21. The component as recited in wherein each nanoparticle has a phosphor and a shell covering the phosphor claim 17 , the shell consisting of a mineral oxide such as polysiloxane SiO claim 17 , zirconium oxide ZrO claim 17 , or alumina AlO.22. The component as recited in wherein the shell has a thickness suited to ensure the luminescence of the nanoparticle after at least three years under irradiation in the core of a nuclear power station.23. The component as recited in wherein that the phosphor consists of a mineral material.24. The component as recited in wherein the at least one marking includes:a first marking placed in a first predetermined place on the external surface, to be read with optical radiation having a first determined excitation ...

Chromic Luminescent Compositions and Textiles

A chromic luminescent composition and method for fabricating the composition are disclosed. The chromic luminescent composition comprises at least one or more non-luminescent materials and one or more luminescent materials. The one or more non-luminescent materials having absorption spectra that at least partially overlap with the spectrum of incident electromagnetic radiation. The one or more luminescent materials convert at least a portion of energy of incident electromagnetic radiation to a lower energy wavelength. The one or more non-luminescent materials and the one or more luminescent materials are selected such that, when subsequently exposed to incident electromagnetic radiation, color and brightness are substantially modulated through absorption and emission as a function of incident electromagnetic radiation. Also disclosed are a chromic luminescent textile and a method for fabricating the textile.

METHOD FOR MANUFACTURING COATED PHOSPHOR, AND COATED PHOSPHOR

A process for producing a coated phosphor, namely a phosphor coated with a coating material, which includes a mixing step of mixing a phosphor with a coating material in a solvent to form a mixed fluid and a separation step of separating the mixed fluid into a solid phase and a liquid phase, wherein the phosphor comprises barium (Ba), strontium (Sr), europium (Eu), silicon (Si) and oxygen (O) at an atomic ratio represented by compositional formula (1), and the mass ratio of the phosphor to the coating material is 40:260 to 200:260, [(Ba1-ySry)1-xEux]aSibOc (1) [wherein a, b, c, x and y satisfy the relationships: 2.7 Подробнее

Light Emitting Device

A light emitting device includes a base; a light emitting diode (LED) supported by the base; a layer spaced apart from the LED and including a light emitting material of refraction index n 1 . An enclosure formed by the layer and the base encloses the LED. A medium inside the enclosure between the LED and the layer has a refraction index n 0 <n 1 ; and an optic in contact with the layer and having a refraction index n 2 ≧n 1 . The layer is positioned between the optic and the LED. The optic has, at a surface of contact with the layer, a radius r measured along a ray originating from the LED, and, at an output surface of the optic, another radius R measured along the same ray, such that R≧r·(n 1 /n m ), where n m is a refraction index of a medium adjacent the output surface of the optic.

PHOTO-INDUCED PHASE TRANSFER OF LUMINESCENT QUANTUM DOTS

A method for the photo-mediated phase transfer of inorganic nanocrystals, such as luminescent quantum dots, QDs, is provided. Irradiation, specifically UV excitation (λ<400 nm), promotes the in-situ ligand exchange of hydrophobic quantum dots with hydrophilic ligands and their facile transfer to polar solvents and buffer media. The technique enables transfer of quantum dots and other nanocrystal materials from hydrophobic to polar and hydrophilic solutions. 1. A method for preparing a composition comprising a polar solvent comprising a nanoparticle , the method comprising:irradiating a biphasic mixture, the biphasic mixture comprising a polar solvent and a non-polar solvent, the polar solvent and the non-polar solvent being immiscible in each other;wherein, prior to irradiation, the polar solvent comprises a hydrophilic surfactant, the hydrophilic surfactant comprising a moiety reactive with a surface of the nanoparticle or a moiety that becomes reactive with a surface of the nanoparticle during irradiation of the biphasic mixture;wherein, prior to irradiation, the non-polar solvent comprises the nanoparticle; andwherein irradiating the biphasic mixture induces a reaction between the nanoparticle and the reactive moiety of the hydrophilic surfactant, which reaction mediates transfer of the nanoparticle from the nonpolar solvent to the polar solvent.2. The method of wherein the nanoparticle comprises a core and a hydrophobic surfactant prior to irradiation of the biphasic mixture.3. The method of wherein the core comprises a nanocrystal.4. The method of wherein the core comprises a semiconductor nanocrystal.5. The method of wherein the core comprises a metal selected from the group consisting of gold claim 2 , silver claim 2 , platinum claim 2 , copper claim 2 , nickel claim 2 , and alloys thereof.6. The method of wherein the core comprises a semiconductor selected from the group consisting of CdSe claim 2 , CdS claim 2 , CdSeS claim 2 , CdTe claim 2 , InAs claim 2 , ...

METHOD FOR PRODUCING AN OPTICAL ELEMENT

A method for producing a luminescent material element which is configured for conversion of pump light is provided. The method may include: providing a polysilazane solution; bringing the polysilazane solution in contact with a luminescent material; and partially curing the polysilazane solution. 1. A method for producing a luminescent material element which is configured for conversion of pump light , the method comprising:providing a polysilazane solution;bringing the polysilazane solution in contact with a luminescent material; andpartially curing the polysilazane solution.2. The method as claimed in claim 1 ,wherein the luminescent material is added to the polysilazane solution.3. The method as claimed in claim 1 ,wherein the polysilazane solution is applied onto a luminescent material arrangement.4. The method as claimed in claim 3 ,wherein the polysilazane solution is applied onto a luminescent material layer.5. The method as claimed in claim 1 ,wherein the polysilazane solution is applied by one of: spraying and dispensing.6. The method as claimed in claim 1 ,wherein perhydropolysilazane is provided as the polysilazane.7. The method as claimed in claim 6 ,wherein the perhydropolysilazane solution is cured to form a vitreous shaped body comprising at least one of: embedded and encapsulated luminescent material.8. The method as claimed in claim 7 ,wherein the perhydropolysilazane solution is cured to form a vitreous shaped layer.9. The method as claimed in claim 6 ,wherein a solution of perhydropolysilazane in di-n-butyl ether is provided as the polysilazane solution.10. The method as claimed in claim 1 ,wherein the partial curing is carried out at an ambient temperature of at least 30° Celsius.11. The method as claimed in claim 1 ,wherein the partial curing is carried out under at least one of: dry box conditions and the effect of a catalyst.12. The method as claimed in claim 2 ,wherein after the luminescent material is added to the polysilazane solution, the ...

HARDENING RESIN COMPOSITION AND COLOR CONVERSION MATERIAL USING THE SAME

The invention provides a resin composition having an excellent dispersibility of a phosphor, and when the resin composition is processed and used as a color conversion material, to give a hardened material having a high heat resistance, resistance to thermal yellowing, light resistance, transparency and refractive index, and an excellent adhesion to allow color conversion of light emitted from an optical semiconductor stably and without a flare spot over a long period of time. The invention also relates to a hardening resin composition having at least one of epoxy and oxetanyl. 1. A hardening resin composition containing (A) to (E) below:(A) a silicon compound that is obtained by performing a hydrosilylation reaction among compound (a), compound (b), and when necessary, compound (c) below, and has at least one of epoxy and oxetanyl, whereincompound (a) is at least one of silicone and silsesquioxane having two or more of SiH in one molecule,compound (b) is a compound having at least one of epoxy and oxetanyl, and alkenyl having 2 to 18 carbons in one molecule,and compound (c) is at least one of silicone and silsesquioxane having two or more of alkenyl in one molecule;(B) a phosphor;(C) an epoxy resin;(D) a hardening agent; and(E) an antioxidant.8. The hardening resin composition according to claim 1 , wherein the phosphor represented by (B) is a phosphor for a white LED.10. The hardening resin composition according to claim 1 , wherein the hardening agent represented by (D) is a thermal cationic polymerization initiator or a photocationic polymerization initiator.11. The hardening resin composition according to claim 1 , wherein the antioxidant represented by (E) is a phenolic antioxidant or a phosphorus-based antioxidant claim 1 , and a phenolic antioxidant.12. A hardened material in a form of a film claim 1 , a sheet or a coating film claim 1 , obtained by applying onto a transparent base material the hardening resin composition according to claim 1 , and hardening ...

Iridium complex with methyl-d3 substitution

Novel organic compounds comprising ligands with deuterium substitution are provided. In particular, the compound is an iridium complex comprising methyl-d 3 substituted ligands. The compounds may be used in organic light emitting devices to provide devices having improved color, efficiency and lifetime.

Production Of Fine Particles Of Functional Ceramic By Using Pulsed Laser

A method of forming nanometer sized fine particles of functional ceramic from a bulk functional ceramic, particularly fine particles of phosphorous ceramics from a bulk phosphor material is disclosed. The method relies on irradiation of a bulk phosphorous ceramic in a liquid with an ultrashort-pulsed-laser-fragmentation beam to thereby form nanometer sized particles of the phosphorous ceramic. The method is unique in that the generated particles retain the chemical and crystalline properties of the bulk phosphorous ceramic. The generated solutions are stable colloids from which the particles can be isolated or used as is. 1. A solution of fine particles of a multi-element ceramic comprising:a liquid; andfine particles of a multi-element ceramic having at least three elements and an average particle size of from 1 to 5000 nanometers in diameter dispersed in said liquid, wherein said fine particles are derived from a bulk material of said multi-element ceramic having at least three elements by ultrashort-pulsed-laser-fragmentation processing using pulses having a pulse duration of 500 picoseconds or less, and wherein said fine particles retain the chemical composition and crystalline structure of said bulk material.2. The solution of claim 1 , wherein said ultrashort-pulsed-laser-fragmentation processing is done using pulses having a pulse duration of 10 femtoseconds to 20 picoseconds.3. The solution of claim 1 , wherein said multi-element ceramic is a phosphor material.4. The solution of claim 1 , wherein said fine particles are super fine particles having an average diameter of from 1 to 1000 nanometers.5. The solution of claim 1 , wherein said fine particles comprise oxides claim 1 , nitrides claim 1 , nitrogen oxides claim 1 , oxynitrides claim 1 , garnet claim 1 , spinel claim 1 , silica claim 1 , SiAlON claim 1 , or mixtures thereof.6. The solution of claim 1 , wherein said fine particles comprise at least one of aluminum indium gallium nitride (AlInGaN) claim 1 ...

Organic electroluminescent element, display device and lighting device

Disclosed is an organic electroluminescent device having long life, while exhibiting high luminous efficiency. Also disclosed are an illuminating device and a display, each using such an organic electroluminescent device. In the organic electroluminescent device, a compound represented by the general formula (A) which is suitable as a host material for a phosphorescent metal complex is used at least in one sublayer of a light-emitting layer.

Ceramic Composite for Light Conversion, Method for Producing Same, and Light Emitting Device Including Same

A ceramic composite for light conversion, and method of producing same and a light emitting device including the same. The ceramic composite for light conversion of the present invention is a solidified body having a structure in which at least two oxide phases including a first phase and a second phase are continuously and three-dimensionally intertwined with one another, and characterized in that the first phase is a YAlOphase including Ba or Sr and activated with fluorescent Ce, the second phase is an AlOphase, and the Sr or Ba in the solidified body are contained in an amount of 0.01 to 1.00 part by mass based on 100 parts by mass of the solidified body, in terms of the oxide. 17-. (canceled)8. A ceramic composite for light conversion , which is a solidified body and comprises at least two oxide phases including a first phase and a second phase which are continuously and three-dimensionally intertwined with one another ,{'sub': 3', '5', '12, 'the first phase containing Ba or Sr, and being a YAlOphase activated with fluorescent Ce,'}{'sub': 2', '3, 'the second phase being an AlOphase, and'}the Sr or Ba in the solidified body being contained in an amount of 0.01 to 1.00 part by mass based on 100 parts by mass of the solidified body, in terms of the oxide.9. The ceramic composite for light conversion according to claim 8 , wherein a content of the cerium in the solidified body claim 8 , when expressed it by Ce/(Y+Ce) claim 8 , is less than 0.04 (excluding 0).10. The ceramic composite for light conversion according to claim 8 , which absorbs light having a peak at wavelength of 420 to 500 nm to emit fluorescence having a dominant wavelength at 560 to 570 nm.11. The ceramic composite for light conversion according to claim 9 , which absorbs light having a peak at wavelength of 420 to 500 nm to emit fluorescence having a dominant wavelength at 560 to 570 nm.12. A light emitting device comprising:a light emitting element; and{'claim-ref': {'@idref': 'CLM-00008', 'claim ...

Composition containing quantum dot fluorescent body, molded body of quantum dot fluorescent body dispersion resin, structure containing quantum dot fluorescent body, light-emitting device, electronic apparatus, mechanical device, and method for producing molded body of quantum dot fluorescent body dispersion resin

Provided are a composition that contains a quantum dot fluorescent body and that is able to suppress quenching of the quantum dot fluorescent body, a molded body of a quantum dot fluorescent body dispersion resin, a structure containing a quantum dot fluorescent body, a light-emitting device, an electronic apparatus, or a mechanical device, and a method for producing the molded body of a quantum dot fluorescent body dispersion resin. A quantum dot fluorescent body is dispersed in a cycloolefin (co)polymer that is a dispersion resin to form the composition containing a quantum dot fluorescent body, and the composition containing a quantum dot fluorescent body is molded, forming the molded body of the quantum dot fluorescent body dispersion resin, and a gas barrier layer that reduces the passage of oxygen to the molded body of the quantum dot dispersion resin is formed at a portion or the entirety of the surface of the molded body of the quantum dot fluorescent body dispersion resin, and furthermore, a light-emitting device is configured using the composition containing the quantum dot fluorescent body as a sealing material that seals an LED chip.

Tin phosphate glass containing embedded luminescent material particles

The invention provides a tin phosphate glass containing embedded luminescent material particles, wherein the luminescent material particles comprise luminescent material from the class of CaAlSiN 3:Eu 2+ and optionally other luminescent material particles. The invention further provides a method for the production of such glass as well as a lighting unit using such glass as (part of) a light conversion unit. 1. A tin phosphate glass containing embedded luminescent material particles , wherein the luminescent material particles comprise luminescent material from the class of CaAlSiN3:Eu2+.2. The tin phosphate glass according to claim 1 , wherein the luminescent material particles comprise luminescent (Ca claim 1 ,Sr)AlSiN3:Eu2+.3. The tin phosphate glass according to claim 2 , further containing one or more other types of embedded luminescent material particles.4. The tin phosphate glass according to claim 3 , further containing embedded luminescent material particles comprising luminescent material from the class of Y3A15O12:Ce3+.5. The tin phosphate glass according to claim 4 , wherein the tin phosphate glass is obtainable by the vitrification of a tin source and a phosphate source in the presence of luminescent material particles.6. The tin phosphate glass according to claim 5 , wherein the weight percentage of the total amount of luminescent material particles relative to the total weight of the thin phosphate glass is in the range of 0.5-20 wt. %.7. A method for the production of a tin phosphate glass containing embedded luminescent material particles comprising vitrifying a tin source and phosphate source in the presence of luminescent material particles claim 5 , wherein the luminescent material particles comprise luminescent ma erial from the class of CaAlSiN3:Eu2+.8. The method according to claim 7 , wherein the tin source comprises one or more of tin oxide and tin oxalate and wherein the phosphate source comprises one or more of P2O5 and NH4H2PO4.9. The ...

Photo-luminescence coating and application thereof

This invention proposes a photo-luminescence coating and its applications. The photo-luminescence coating is a mixture of photo-luminescence phosphors, glass powder, macromolecule compounds and solvent. The photo-luminescence coating is coated on a substrate and, after a drying, de-binding and sintering process, a photo-luminescence glass layer is formed, and especially the pattern can be designed. The photo-luminescence glass is made from a solidifying procedure of a melt glass mixed with photo-luminescence phosphors, and especially can be made to have a specialized shape. 1. A photo-luminescence coating comprises:a photo-luminescence phosphor,a glass powder,a polymer binder or macromolecular compounds, and{'b': '1', 'a solvent, wherein weight ratio of the photo-luminescence phosphor ranges from % to 70%, and is able to be stimulated under irradiation of an incident light with a shorter wavelength to emit a photo-luminescence with a longer wavelength, and the wavelength of the incident light ranges from 400 nm to 500 nm and the wavelength of the photo-luminescence from 500 nm to 700 nm.'}2. The photo-luminescence coating as claimed in claim 1 , wherein the photo-luminescence phosphor is a garnet claim 1 , a silicate claim 1 , a nitride or a mixture thereof.3. The photo-luminescence coating as claimed in claim 2 , wherein the garnet is YAlO:Ce or (Y claim 2 ,Gd claim 2 ,Sm)(Al claim 2 ,Ga)O:Ce.4. The photo-luminescence coating as claimed in claim 2 , wherein the silicate is CaSiO:Eu claim 2 , BaSc(SiO):Euor LiSrSiO:Eu.5. The photo-luminescence coating as claimed in claim 2 , wherein the nitride is CaAlSiN:Eu claim 2 , α-SiAlON:Euor β-SiAlON:Eu.6. A photo-luminescence ceramics comprises:a substrate; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'at least one photo-luminescence glass layer, arranged on top of the substrate, wherein each of photo-luminescence glass layer comprises a glass layer and photo-luminescence phosphors distributed in the glass layer and ...

Luminescent product, a light source and a luminaire

A luminescent product 100, a lamp and a light source are provided for converting light of a first color into light of a second color. The luminescent product 100 comprises a matrix polymer 108 and another material 106. The matrix polymer 108 comprises a luminescent material which converts light of a first color into light of a second color. The another material 106 is light transmitting. The luminescent product 100 is at least partially light transmitting and the matrix polymer has a three dimensional structure which has multiple surfaces being an interface between the matrix polymer and the another material to allow, in use, a light beam 104, which impinges on a side 102 of the luminescent product 100, to pass at least four times an interface between the matrix polymer 108 and the another material 106 before at least a part of the light beam 104 leaves the luminescent product 100 at another side 110 of the luminescent product 100.

Metal Coating of Rare Earth Nano-Phosphors and Uses Thereof

Core-shell nanoparticles comprises a phosphorescent core and metal shell comprising at least two metals The phosphorescent core may comprise an up converting phosphor. The phosphorescent core may comprise a trivalent rare earth cation. The phosphorescent core further may comprise a monovalent alkali metal. The phosphorescent core may optionally comprises a second and also optionally a third trivalent rare earth cation.

MANUFACTURING METHOD FOR LIGHT EMITTING DEVICE AND PHOSPHOR MIXTURE

Disclosed is a manufacturing method for a light emitting device Including a light emitting element and a wavelength converting part which converts light emitted from the light emitting element into light of another wavelength. The manufacturing method includes a first step and a second step. The first step is a step of applying onto the light emitting element and drying a first liquid mixture in which phosphor and plate-like particles are dispersed in polyhydric alcohol having a valence of two or more to form a phosphor layer. The second step is a step of applying onto the phosphor layer and firing a second liquid mixture in which a translucent ceramic precursor is dispersed in a solvent to form the wavelength converting part. 1. A manufacturing method for a light emitting device including a light emitting element and a wavelength converting part which converts light emitted from the light emitting element Into light of another wavelength , the manufacturing method comprising:a step of applying onto the light emitting element and drying a first liquid mixture in which phosphor and plate-like particles are dispersed in polyhydric alcohol having a valence of two or more to form a phosphor layer; anda step of applying onto the phosphor layer and firing a second liquid mixture in which a translucent ceramic precursor is dispersed in a solvent to form the wavelength converting part.2. The manufacturing method for the light emitting device according to claim 1 , wherein the plate-like particles are of a layered silicate mineral.3. The manufacturing method for the light emitting device according to claim 1 , wherein the polyhydric alcohol has a boiling point of 250° C. or lower.4. The manufacturing method for the light emitting device according to claim 1 , wherein the first liquid mixture is a liquid mixture obtained by dispersing the phosphor and the plate-like particles having a particle size smaller than a particle size of the phosphor in a mixed dispersion medium in ...

Aromatic heterocyclic derivative, material for organic eletroluminescent element, and organic electroluminescent element

An organic EL device includes an anode, an emitting layer, an electron transporting zone and a cathode in this sequence, in which the electron transporting zone contains an aromatic heterocyclic derivative represented by a formula (1) below. In the formula (1), X 1 to X 3 are a nitrogen atom or CR 1 , and A is represented by a formula (2) below. In the formula (2), L 1 is s single bond or a linking group, and HAr is represented by a formula (3) below. In the formula (3), Y 1 is an oxygen atom, a sulfur atom or the like, and one of X 11 to X 18 is a carbon atom bonded to L 1 by a single bond and the rest of X 11 to X 18 are a nitrogen atom or CR 13 .

Sintering Aid Coated YAG Powders and Agglomerates and Methods for Making

Method of Making particles including a YAG core and a coating of sintering aid deposited thereon. The particles and agglomerates thereof maybe formed as a powder. The coated YAG-containing particles are well-suited to production of polycrystalline YAG-containing ceramics. The coated YAG-containing particles may be fabricated using a novel fabrication method which avoids the need for formation of a homogeneous powder mixture of YAG and sintering aid. The mixture may be sprayed into a drying column and dried to produce coated particles. Alternatively, the YAG particles and sintering aid or sintering aid precursor solution may be separately introduced to the drying column and dried to form coated YAG-containing particles.

LIGHT TRANSMITTING THERMOPLASTIC RESINS COMPRISING DOWN CONVERSION MATERIAL AND THEIR USE IN PHOTOVOLTAIC MODULES

Disclosed are thermoplastic resin formulations for use as a light transmitting layer (e.g., encapsulant layer) in a photovoltaic module comprising: (a) a light transmitting thermoplastic resin, (b) at least one down conversion material that exhibits a maximum in incident radiation absorption in the range of 280 to 500 nm and a maximum in radiation emission at a relatively longer wavelength in the range of 400 to 900 nm and improves the efficiency of photovoltaic electric current generation in a photovoltaic module; and (c) a light stabilizer additive that transmits at least about 40 percent of the ultraviolet (UV) electromagnetic radiation having a wavelength in the range of from about 280 nm to about 380 nm. Also disclosed are sheet materials prepared from such resins and photovoltaic modules incorporating such sheet materials. 1. A thermoplastic resin formulation for use as a light transmitting layer in a photovoltaic module comprising:(a) a light transmitting thermoplastic resin,(b) at least one down conversion material that exhibits a maximum in incident radiation absorption in the range of 280 to 500 nm and a maximum in radiation emission at a relatively longer wavelength in the range of 400 to 900 nm and improves the efficiency of photovoltaic electric current generation in a photovoltaic module; and(c) a light stabilizer additive that transmits at least about 40 percent of the ultraviolet (UV) electromagnetic radiation having a wavelength in the range of from about 280 nm to about 380 nm.2. A thermoplastic resin formulation according to wherein the down conversion material comprises exhibits a maximum in absorption of electromagnetic radiation within a spectral range from 300 to 500 nanometers.3. A thermoplastic resin formulation according to wherein the down conversion material exhibits a maximum in emission of electromagnetic radiation within a spectral range from 400 to 600 nanometers.4. A thermoplastic resin formulation according to wherein the down ...

INK COMPOSITION, ORGANIC EL DEVICE USING INK COMPOSITION, AND METHOD FOR PRODUCING ORGANIC EL DEVICE

An ink composition that is capable of forming a low molecular weight luminescent material having no repeating structure into a favorable film within a partition wall by coating by a nozzle printing method, an organic EL device using the ink composition, and the method for producing the organic EL device are to be provided. The ink composition is used for forming an organic luminescent medium layer of an organic EL device by a nozzle printing method, in which an organic luminescent layer as one of the organic layer contains a low molecular weight luminescent material that has no repeating structure and a polymer material having a repeating structure, which are mixed with each other, and the polymer material is a nonconductive material. 1. An ink composition for forming an organic layer of an organic electroluminescence device ,in which an organic luminescent layer is the organic layer, the ink composition comprising:at least one low molecular weight luminescent material that has no repeating structure; andat least one polymer material having a repeating structure, the polymer material mixed with the low molecular weight luminescent material,the polymer material is a nonconductive material, anda weight ratio of the polymer material with respect to the low molecular weight luminescent material is from 0.001 to 0.05.2. The ink composition according to claim 1 , wherein the polymer material has a weight average molecular weight of from 10 claim 1 ,000 to 1 claim 1 ,000 claim 1 ,000.3. The ink composition according to claim 1 , wherein the polymer material has a glass transition point of 100° C. or more.4. The ink composition according to claim 1 , wherein the polymer material is polystyrene claim 1 , polymethyl methacrylate or polycarbonate.5. An organic electroluminescence device comprising an anode claim 1 , a cathode and plural organic layers intervening between the anode and the cathode claim 1 ,the plural organic layers including an organic luminescent layer ...

MANGANESE-CONTAINING LITHIUM TRIBORATE THERMOLUMINESCENT PHOSPHOR, AND METHOD FOR PRODUCING SAME

The present invention aims to provide a thermoluminescent phosphor for obtaining a two-dimensional or three-dimensional dosimeter for measuring dose absorbed by biological tissues, the thermoluminescent phosphor exerting superior handleability, exhibiting superior biological tissue equivalence, and having superior precision. 1. A method for producing a thermoluminescent phosphor , comprising:a step A1 for mixing lithium tetraborate, boron oxide and manganese dioxide,a step A2 for firing the mixture at 770 to 840° C., anda step A3 for obtaining the thermoluminescent phosphor comprising lithium triborate as a base material and manganese as a luminescent center present in the base material by further adding and mixing lithium tetraborate into the fired product and then firing the mixture at 770 to 840° C.,wherein the molar ratio between the lithium tetraborate and the boron oxide in the step A1 is 1:X, provided that 1 Подробнее

SILVER-CONTAINING LITHIUM HEPTABORATE PHOTOSTIMULABLE PHOSPHOR, METHOD FOR PRODUCING SAME, AND LAMINATE USING SAID PHOTOSTIMULABLE PHOSPHOR

The present invention aims to provide a photostimulable phosphor for obtaining a two-dimensional or three-dimensional dosimeter, the photostimulable phosphor exerting superior handleability, exhibiting superior biological equivalence, and having superior precision. The present invention also aims to provide a laminate using the photostimulable phosphor. 1. A method for producing a photostimulable phosphor , comprising:a step A for mixing lithium tetraborate, boron oxide and silver oxide, anda step B for obtaining the photostimulable phosphor comprising lithium heptaborate as a base material and silver as a luminescent center present in the base material by firing the mixture at 820 to 860° C.,wherein the molar ratio between the lithium tetraborate and the boron oxide in the step A is X:1, provided that X>1, and the amount of the silver oxide is 0.06 to 1.0 mass % relative to the total mass of the lithium tetraborate and the boron oxide.2. The method of claim 1 , wherein the X is 2 to 4.3. The method of claim 1 , wherein the temperature of the firing is 840 to 860° C. and the time of the firing is 6 hours or more.4. The method of claim 1 , wherein the amount of the silver oxide is 0.06 to 0.08 mass %.5. A photostimulable phosphor comprising lithium heptaborate as a base material and silver as a luminescent center present in the base material claim 1 , the photostimulable phosphor having a monomodal luminescence spectrum.6. The photostimulable phosphor of which has a monomodal luminescence spectrum with a maximum value at a range of 300 to 310 nm.7. A plate comprising the photostimulable phosphor of .8. A photostimulable phosphor sheet which comprises the photostimulable phosphor of and has a thickness of 0.05 to 1 mm.9. A thin film body comprising 0.1 to 5 mm-thick paper or biological tissue-equivalent plastic sheet and the photostimulable phosphor sheet of which is laminated on the paper or the sheet.10. A method for producing the thin film body of claim 9 , ...

Plastic scintillator with effective pulse shape discrimination for neutron and gamma detection

In one embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount of 5 wt % or more; wherein the scintillator material exhibits an optical response signature for neutrons that is different than an optical response signature for gamma rays. In another embodiment, a scintillator material includes a polymer matrix; and a primary dye in the polymer matrix, the primary dye being a fluorescent dye, the primary dye being present in an amount greater than 10 wt %.

METHOD OF MAKING COMPONENTS INCLUDING QUANTUM DOTS, METHODS, AND PRODUCTS

A quantum dot formulation substantially free of oxygen and, optionally, substantially free of water and a method of making a quantum dot formulation substantially free of oxygen and, optionally, substantially free of water is described. Also described are products including the quantum dot formulation described herein and related methods. 182-. (canceled)83. A quantum dot formulation comprisingquantum dots in combination with one or more components wherein oxygen is present in the quantum dot formulation in an amount of less than about 10 part per million.84. A quantum dot formulation comprisingquantum dots in combination with one or more components wherein water is present in the quantum dot formulation in an amount of less than about 100 part per million.85. A quantum dot formulation comprisingquantum dots in combination with one or more components wherein oxygen and water each is present in the quantum dot formulation in an amount of less than about 10 part per million.86149-. (canceled)150. A quantum dot-containing vessel comprisinga container having a quantum dot formulation therein having less than about 10 ppm oxygen.151. A quantum dot-containing vessel comprisinga capillary having a quantum dot formulation therein having less than about 10 ppm oxygen.152. (canceled)153. A quantum dot-containing vessel comprisinga container having a quantum dot formulation therein having less than about 100 ppm water.154. A quantum dot-containing vessel comprisinga capillary having a quantum dot formulation therein having less than about 100 ppm water.155. (canceled)156. The quantum dot-containing vessel of being hermetically sealed.157. The quantum dot-containing vessel of being hermetically sealed.158. The quantum dot-containing vessel of being hermetically sealed.159. The quantum dot-containing vessel of being hermetically sealed.160. The quantum dot formulation of wherein water is present in the quantum dot formulation in an amount of less than about 1 part per million. ...

METHODS FOR PREPARING PHOSPHOR PRECURSOR AND PHOSPHOR, AND WAVELENGTH CONVERTER

Intended is a phosphor of the formula: (AB)COwherein A is Y, Gd, and/or Lu, B is Ce and/or Tb, C is Al and/or Ga, and 0.002≦x≦0.2. A phosphor precursor is prepared by suspending gamma-alumina particles having a specific surface area of at least 50 m/g and dissolving a rare earth element salt in water to form a suspended aqueous to solution, adding urea thereto, heating the solution to form mixed fine particles of gamma-alumina and rare earth element salt, separating, and firing the mixed fine particles at 600-1,000° C. to form mixed oxide fine particles of rare earth oxide and alumina. 1. A method for preparing a precursor to a phosphor comprising a garnet phase of the compositional formula (1):{'br': None, 'sub': 1-x', 'x', '3', '5', '12, '(AB)CO\u2003\u2003(1)'}wherein A is at least one rare earth element selected from the group consisting of Y, Gd, and Lu, B is Ce and/or Tb, C to is Al and/or Ga, and 0.002≦x≦0.2, the method comprising the steps of:{'sup': '2', 'suspending gamma-alumina particles having a BET specific surface area of at least 50 m/g and dissolving a rare earth element salt in water to form a suspended aqueous solution,'}adding urea to the suspended aqueous solution,heating the solution to form mixed fine particles of gamma-alumina and rare earth element salt,separating the mixed fine particles from the solution after heating, andfiring the mixed fine particles at a temperature of up to 1,000° C. to form mixed oxide fine particles of rare earth oxide and alumina.2. The method of wherein the rare earth element salt used in the dissolving step contains a salt of at least one rare earth element selected from Y claim 1 , Gd and Lu and a salt of Ce and/or Tb.3. The method of wherein the rare earth element salt used in the dissolving step further contains a salt of Ga.4. A method for preparing a phosphor claim 2 , comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'combining the mixed oxide fine particles prepared by the method of ...

FLUORESCENT FILM AND DISPLAY FILM

A fluorescent film according to the present invention includes a transparent resin layer which dispersively holds semiconductor nanocrystals. The semiconductor nanocrystals are quantum dot phosphors having fluorescence excitation spectra that differ depending on particle size of the quantum dot phosphors. The transparent resin layer is either water soluble or water dispersible. This makes it possible to uniformly disperse the semiconductor nanocrystals in a highly dense and highly uniform state, which contributes to implementing a thin fluorescent film having high reliability, high efficiency, and high color rendering properties. 1. A fluorescent film comprising:semiconductor nanocrystals; anda transparent resin layer made of transparent resin that dispersively holds the semiconductor nanocrystals,wherein the semiconductor nanocrystals are quantum dot phosphors having fluorescence excitation spectra that differ depending on particle size of the quantum dot phosphors, andthe transparent resin is either water soluble or water dispersible.2. The fluorescent film according to claim 1 ,wherein each of the semiconductor nanocrystals is formed of at least three layers, and an outer-most layer of the each semiconductor nanocrystal is hydrophobic.3. The fluorescent film according to claim 1 ,wherein the transparent resin is one of acrylic based, fluorine based, and epoxy based.4. The fluorescent film according to claim 1 ,wherein the transparent resin is deposited on a transparent conductive film.5. The fluorescent film according to claim 1 ,wherein at least one surface of the transparent resin is coated with a transparent inorganic compound having oxygen barrier properties.6. The fluorescent film according to claim 1 ,wherein the transparent resin is deposited on a thin metal film.7. The fluorescent film according to claim 1 , further comprising:a transparent resin layer which does not include the semiconductor nanocrystals; andat least one fluorescent resin layer which ...

Light-Emitting Element, Light-Emitting Device, Electronic Device, Lighting Device, and Heterocyclic Compound

A light-emitting element with high heat resistance and high emission efficiency is provided. A novel heterocyclic compound that can be used in such a light-emitting element is provided. One embodiment of the present invention is a light-emitting element which includes, between a pair of electrodes, a layer containing a first organic compound, a second organic compound, and a light-emitting substance; the first organic compound includes one pyrimidine ring and one ring with a hole-transport skeleton; the second organic compound is an aromatic amine; and the light-emitting substance converts triplet excitation energy into light. A combination of the first organic compound, which includes the one pyrimidine ring and the one ring with the hole-transport skeleton, and the second organic compound, which is the aromatic amine, forms an exciplex.

LUMINOPHORES AND CORE-SHELL LUMINOPHORE PRECURSORS

A novel type of green luminophore containing mixed rare-earth phosphates is produced from precursor particles having a mean diameter ranging from 1.5 to 15 microns; such particles have an inorganic core and a shell of a mixed lanthanum and/or cerium phosphate, optionally doped with terbium, evenly covering the inorganic core with a thickness greater than or equal to 300 nm. 130.-. (canceled)31. A phosphor precursor (P) comprising particles having an average diameter ranging from 1.5 to 15 microns , the particles comprising:a mineral core based on a non-phosphor mineral material; anda shell based on a mixed phosphate of lanthanum and/or cerium, optionally doped with terbium, homogeneously covering the mineral core over a thickness greater than or equal to 300 nm.32. The phosphor precursor as defined by claim 31 , wherein the shell has a thickness from 0.3 to 1 micron.33. The phosphor precursor as defined by claim 31 , wherein the mineral core of the particles is based on a phosphate or a mineral oxide.34. The phosphor precursor as defined by claim 33 , wherein the mineral core of the particles is based on a rare earth phosphate or a mineral oxide selected from the group consisting of the oxides of zirconium claim 33 , zinc claim 33 , titanium claim 33 , aluminium and rare-earth metals.35. The phosphor precursor as defined by wherein the mineral core of the particles is based on a yttrium claim 34 , gadolinium or cerium oxide.39. The phosphor precursor as defined by claim 31 , wherein the particles have a dispersion index of less than 0.6.40. The phosphor precursor as defined by claim 31 , wherein the mineral core has a specific surface area of at most 1 m/g.41. The phosphor precursor as defined by wherein the mineral core of the particles is based on silica claim 31 , a silicate claim 31 , an aluminate claim 31 , a borate or a titanate.42. The phosphor precursor as defined by wherein the mineral core of the particles has been densified by using the technique of ...

Biscarbazole derivative and organic electroluminescent element using same

A biscarbazole derivative having a specific group, which is represented by formula (1): and an organic electroluminescence device in which a plurality of organic thin-film layers including a light emitting layer are disposed between a cathode and an anode, and at least one of the organic thin-film layers include the biscarbazole derivative. The organic electroluminescence device exhibits high emission efficiency and has a long lifetime. In formula (1), each of A 1 and A 2 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms; each of Y 1 to Y 16 independently represents C(R) or a nitrogen atom; each of R groups independently represents a hydrogen atom, etc.; and each of L 1 and L 2 independently represents a single bond, etc.; provided that at least one of A 1 , A 2 and R represents a substituted or unsubstituted fluoranthenyl group, etc.

SURFACE-MODIFIED QUANTUM DOT LUMINOPHORES

A surface-modified quantum dot luminophore includes a quantum dot luminophore and a coating includes a fluorinated coating including a fluorinated inorganic agent, a fluorinated organic agent, or a combination of fluorinated inorganic and organic agents, the fluorinated coating generating hydrophobic surface sites and the coating is disposed on the surface of the silicate luminophore. 1. A surface-modified quantum dot (QD) luminophore , comprising:a QD luminophore; anda fluorinated coating disposed on the QD luminophore and comprising a fluorinated inorganic agent, a fluorinated organic agent, or a combination of the fluorinated inorganic agent and the fluorinated organic agent, the fluorinated coating configured to generate hydrophobic surface sites.2. The surface-modified QD luminophore of claim 1 , wherein the QD luminophore comprises a II-VI group compound semiconductor or a III-V group compound semiconductor.3. The surface-modified QD luminophore of claim 2 , wherein:the II-VI group compound semiconductor comprises CdSe or CdS; andthe III-V group compound semiconductor comprises AlInGaP, AlInGaAs, or AlInGaN.4. The surface-modified QD luminophore of claim 1 , wherein the fluorinated coating comprises a fluorine—functionalized organosilane comprising the general formula Si(OR)X claim 1 , where R is CH claim 1 , CH claim 1 , or a higher alkane claim 1 , and X is a fluorine-functionalized organic ligand.5. The surface-modified QD luminophore of claim 1 , wherein the fluorinated coating comprises a surface fixed or cross-linked fluorine or fluorine compound.6. The surface-modified QD luminophore of claim 5 , further comprising a non-fluorinated layer disposed on the fluorinated coating.7. The surface-modified QD luminophore of claim 1 , further comprising a moisture barrier layer disposed between the QD luminophore and the fluorinated coating claim 1 , the moisture barrier layer comprising at least one of:{'sub': 2', '3', '2', '3', '2', '3', '2', '3', '2', '3', '2, ...

Light-emitting element, light-emitting device, electronic device, and lighting device

A light-emitting element having high external quantum efficiency is provided. A light-emitting element having a long lifetime is provided. A light-emitting layer is provided between a pair of electrodes. The light-emitting layer is a stack of a first light-emitting layer, which contains a first phosphorescent compound, a first organic compound having an electron-transport property, and a second organic compound having a hole-transport property and is provided on the anode side, and a second light-emitting layer, which contains at least a second phosphorescent compound and the first organic compound having an electron-transport property. A combination of the first organic compound and the second organic compound forms an exciplex.

Particle Aggregate, Manufacturing Method for Particle Aggregate, Fluorescence Enhancing Element, and Device Using Photochemical Reactions

Provided is a hollow particle aggregate formed by aggregating a plurality of self-organizable particles, wherein a metal core is modified by a surface modifier for a metal core comprising a first segment comprising an optionally branched fluorinated alkylene glycol group, an optionally branched fluorinated alkylene group, or an optionally branched fluorinated azaalkylene group; a second segment comprising at least one hydrophilic group and bonding to one of the ends of a main chain of the first segment; and a functional group that bonds directly or indirectly to the another end of the main chain of the first segment and is able to bond to the metal core. 1. A hollow particle aggregate formed by aggregating a plurality of self-organizable particles , wherein a metal core is modified by a surface modifier for a metal core comprising a first segment comprising an optionally branched fluorinated alkylene glycol group , an optionally branched fluorinated alkylene group , or an optionally branched fluorinated azaalkylene group; a second segment comprising at least one hydrophilic group and bonding to one of the ends of a main chain of the first segment; and a functional group that bonds directly or indirectly to the another end of the main chain of the first segment and is able to bond to the metal core.3. The hollow particle aggregate according to claim 1 , wherein the aggregate being a near-spherical body.4. The hollow particle aggregate according to claim 3 , wherein the diameter of the near-spherical body being 30 to 400 nm.5. The hollow particle aggregate according claim 1 , wherein the coverage of a surface of the metal core by the surface modifier for a metal core being 20% or more.6. The hollow particle aggregate according to claim 1 , wherein the metal core comprising gold claim 1 , platinum claim 1 , silver claim 1 , copper claim 1 , iron or a semiconductor quantum dot.7. A production method for a particle aggregate comprising a step for mixing in a solvent a ...

Preparation of Nanoparticle Materials

A method of producing nanoparticles comprises effecting conversion of a nanoparticle precursor composition to the material of the nanoparticles. The precursor composition comprises a first precursor species containing a first ion to be incorporated into the growing nanoparticles and a separate second precursor species containing a second ion to be incorporated into the growing nanoparticles. The conversion is effected in the presence of a molecular cluster compound under conditions permitting seeding and growth of the nanoparticles. 1. A nanoparticle comprising a molecular cluster compound and a core semiconductor material on the molecular cluster compound.2. The nanoparticle of claim 1 , wherein the molecular cluster compound comprises one or more elements selected from the group of elements consisting of group 2 claim 1 , 12 claim 1 , 13 claim 1 , 14 claim 1 , 15 claim 1 , and 16 elements.3. The nanoparticle of claim 1 , wherein the molecular cluster compound comprises one or more group 12 elements and one or more group 16 elements.4. The nanoparticle of claim 1 , wherein the molecular cluster compound is selected from the group of molecular compounds consisting of 12-16 claim 1 , 12-15 claim 1 , 13-15 claim 1 , 13-16 claim 1 , and 14-16 molecular compounds.5. The nanoparticle of claim 1 , wherein the molecular cluster compound comprises a group 12 element.6. The nanoparticle of claim 5 , wherein the core semiconductor material does not comprise a group 12 element.7. The nanoparticle of claim 1 , wherein the core semiconductor material is selected from the group of semiconductor materials consisting of 2-16 claim 1 , 12-16 claim 1 , 12-15 claim 1 , 13-15 claim 1 , 13-14 claim 1 , 13-16 claim 1 , and 14-16 semiconductor materials.8. The nanoparticle of claim 1 , wherein the core semiconductor material comprises a group 13 element and a group 15 element.9. The nanoparticle of claim 8 , wherein the core semiconductor material is InP or InAs.10. The nanoparticle of ...

PHOSPHOR ADHESIVE SHEET, OPTICAL SEMICONDUCTOR ELEMENT-PHOSPHOR LAYER PRESSURE-SENSITIVE ADHESIVE BODY, AND OPTICAL SEMICONDUCTOR DEVICE

A phosphor adhesive sheet includes a phosphor layer containing a phosphor and an adhesive layer laminated on one surface in a thickness direction of the phosphor layer. The adhesive layer is formed from a silicone pressure-sensitive adhesive composition. A percentage of the peel strength of the phosphor adhesive sheet is 30% or more. 1. A phosphor adhesive sheet comprising:a phosphor layer containing a phosphor andan adhesive layer laminated on one surface in a thickness direction of the phosphor layer, whereinthe adhesive layer is formed from a silicone pressure-sensitive adhesive composition and {'br': None, 'sub': 75° C.', '25° C., 'Percentage of peel strength=[(peel strength PSin an atmosphere at 75° C.)/(peel strength PSin an atmosphere at 25° C.)]×100'}, 'a percentage of the following peel strength is 30% or more.'}{'sub': '75° C.', 'Peel Strength PSin an atmosphere at 75° C.: a peel strength at a temperature of 75° C. at the time of peeling a support and the adhesive layer from the phosphor layer at a peel angle of 180 degrees and a rate of 300 mm/min after allowing the adhesive layer laminated on the support to pressure-sensitively adhere to the phosphor layer.'}{'sub': '25° C.', 'Peel Strength PSin an atmosphere at 25° C.: a peel strength at a temperature of 25° C. at the time of peeling a support and the adhesive layer from the phosphor layer at a peel angle of 180 degrees and a rate of 300 mm/min after allowing the adhesive layer laminated on the support to pressure-sensitively adhere to the phosphor layer.'}2. The phosphor adhesive sheet according to claim 1 , whereinthe percentage of the peel strength is 200% or less.3. The phosphor adhesive sheet according to claim 1 , whereinthe phosphor layer is formed of a ceramic of the phosphor.4. The phosphor adhesive sheet according to claim 1 , whereinthe phosphor layer is formed from a phosphor resin composition containing the phosphor and a resin.5. An optical semiconductor element-phosphor layer pressure- ...

PHOSPHOR SHEET-FORMING RESIN COMPOSITION

A phosphor sheet-forming resin composition uses a low-cost resin material having high light fastness and low visible light absorption and is capable of providing a phosphor sheet at low cost with deterioration of a phosphor due to moisture being suppressed. The phosphor sheet-forming resin composition contains a film-forming resin composition and a powdery phosphor that emits fluorescence when irradiated with excitation light. The film-forming resin composition contains a hydrogenated styrene-based copolymer, and uses a sulfide-based phosphor as the phosphor. Examples of the hydrogenated styrene-based copolymer include hydrogenated products of styrene-ethylene-butylene-styrene block copolymers. CaS:Eu is used as a preferred sulfide-based phosphor. 1. A phosphor sheet-forming resin composition comprising a film-forming resin composition and a powdery phosphor that emits fluorescence when irradiated with excitation light , whereinthe film-forming resin composition contains a hydrogenated styrene-based copolymer, andthe phosphor contains a sulfide-based phosphor.2. The phosphor sheet-forming resin composition according to claim 1 , wherein the hydrogenated styrene-based copolymer is a hydrogenated product of a styrene-ethylene-butylene-styrene block copolymer.3. The phosphor sheet-forming resin composition according to claim 2 , wherein a ratio of the styrene unit contained in the styrene-ethylene-butylene-styrene block copolymer is 20 to 30 mol %.4. The phosphor sheet-forming resin composition according to claim 1 , wherein a ratio of the hydrogenated styrene-based copolymer contained in the film-forming resin composition is 20 to 30% by mass.5. The phosphor sheet-forming resin composition according to claim 1 , wherein the phosphor is a sulfide-based phosphor that has a red fluorescent peak at 620 to 660 nm when irradiated with blue excitation light.6. The phosphor sheet-forming resin composition according to claim 5 , wherein the sulfide-based phosphor is CaS:Eu.7. ...

Coated up-conversion nanoparticles

The invention provides novel biocompatible upconversion nanoparticle (UCNP) that comprises a core of cubic nanocrystals (e.g., comprising α-Na Lna, Lnb Lnc F4) and an epitaxial shell (e.g., formed from CaF2; wherein Lnb is Yb), and related methods of preparation and uses thereof.

COVERING READINESS INDICATOR

The present invention relates to floor levelling compositions which can be mixed with water and comprise fluorescein or a derivative thereof. The present invention further relates to the use of fluorescein or fluorescein derivatives as indicator for the readiness for being covered of a floor levelling composition mixed with water. 111-. (canceled)12. A method of determining the readiness for covering of a levelling composition which has been applied to a substrate , the method comprising:a) providing a floor levelling composition which can be mixed with water, wherein the floor levelling composition comprises a fluorescein or a derivative thereof;b) mixing the floor levelling composition with water in a suitable ratio; andc) applying and distributing the floor levelling composition on the substrate,wherein a color change of the floor levelling composition indicates the readiness for covering of the levelling composition distributed on the substrate.13. The method of claim 12 , wherein the derivative of fluorescein is selected from the group consisting of eosin claim 12 , uranin and combinations thereof.14. The method of claim 12 , wherein the fluorescein and/or fluorescein derivative is present in an amount sufficient for determining the readiness for covering.15. The method of claim 14 , wherein the fluorescein and/or fluorescein derivative is present in an amount of 0.001% to 5.0% by weight based on the total weight of the dry composition.16. The method of claim 14 , wherein the fluorescein and/or fluorescein derivative is present in an amount of 0.006% to 1.0% by weight based on the total weight of the dry composition.17. The method of claim 14 , wherein the fluorescein and/or fluorescein derivative is present in an amount of 0.01% to 0.5% by weight based on the total weight of the dry composition.18. The method of claim 12 , wherein the floor levelling composition comprises a cement-based or calcium sulphate-based floor levelling composition.19. The method of ...

USE OF FLUORESCENT POLYMERS IN MARKING COMPOSITIONS FOR THE DIAGNOSTIC DETERMINATION OF CLEANING PERFORMANCE

The present invention generally relates to fluorescent marking compositions and their use to determine whether a surface has been cleaned. More particularly, the marking compositions comprise fluorescent polymers. 135.-. (canceled)38. The composition of claim 37 , whereinthe fluorescent monomer unit has the structure (I) and is 4-methoxy-N-(3-N′,N′-dimethylaminopropyl)naphthalimide vinyl benzyl chloride quaternary salt, 4-methoxy-N-(3-N′,N′-dimethylaminopropyl)naphthalimide 2-hydroxy-3-allyloxypropyl chloride quaternary salt, or 4-methoxy-N-(3-N′,N′-dimethylaminopropyl)naphthalimide allyl chloride quaternary salt;the fluorescent monomer unit has the structure (II) and is N-allyl-4-(2-N′,N′-dimethylaminoethoxy)naphthalimide methyl sulfate quaternary salt; orthe fluorescent monomer unit has the structure (III) and is 5-allyloxy-4′-carboxy-1,8-naphthoylene-1′,2′-benzimidazole or 6-vinylbenzyloxy-4′-carboxy-1,8-naphthoylene-1′,2′-benzimidazole.40. The composition of claim 39 , whereinthe fluorescent monomer unit has the structure (IV) and is sulfonated-N-(3-N′,N′-dimethylaminopropyl)benzo (k,l) xanthene-3,4-dicarboxylic imide 2-hydroxy-3-allyloxypropyl quaternary salt, sulfonated-N-(3-N′,N′-dimethylaminopropyl)benzo (k,l) xanthene-3,4-dicarboxylic imide vinyl benzyl chloride quaternary salt, or sulfonated-N-(3-N′,N′-dimethylaminopropyl)benzo (k,l) xanthene-3,4-dicarboxylic imide allyl chloride quaternary salt; orthe fluorescent monomer unit has structure (V) and is N-(3-N′,N′-dimethylaminopropyl)benzo (k,l) xanthene-3,4-dicarboxylic imide allyl chloride quaternary salt.43. The composition of claim 42 , wherein the polymer has the formula GQWor GQWSand wherein Q is acrylic acid; the polymer has the formula GQWand wherein Q is acrylic acid and W is acrylamide; the polymer has the formula GQWand wherein Q is acrylic acid and W is 2-acrylamido-2-methylpropane sulfonic acid; or the polymer has the formula the GQWSand wherein Q is acrylic acid claim 42 , W is acrylamide claim ...

Quantum dot light-emitting device

There is provided a quantum dot light-emitting device including: a light-emitting layer containing a quantum dot luminescent material; and a metal-based particle assembly layer being a layer consisting of a particle assembly including 30 or more metal-based particles separated from each other and disposed in two-dimensions, said metal-based particles having an average particle diameter in a range of 200 to 1600 nm, an average height in a range of 55 to 500 nm, and an aspect ratio, as defined by a ratio of said average particle diameter to said average height, in a range of 1 to 8, wherein said metal-based particles that compose said metal-based particle assembly layer are disposed such that an average distance between adjacent metal-based particles may be in a range of 1 to 150 nm. The quantum dot light-emitting device provides enhanced emission via the metal-based particle assembly layer and thus presents high luminous efficiency.

USE OF FLUORESCENT POLYMERS IN MARKING COMPOSITIONS FOR THE DIAGNOSTIC DETERMINATION OF CLEANING PERFORMANCE

The present invention generally relates to fluorescent marking compositions and their use to determine whether a surface has been cleaned. More particularly, the marking compositions comprise fluorescent polymers. 1. A fluorescent marking composition comprising:a water-dispersible fluorescent polymer derived from polymerization of one or more polymerizable fluorescent monomer units and one or more polymerizable non-fluorescent monomer units;a solvent; anda thickener;wherein the polymerhas a weight average molecular weight of 2 to 2000 kDa, andhas a light absorption spectrum in the range of about 310 to about 400 nm and a light emission spectrum in the range of about 400 to about 750 nm.3. The composition of claim 2 , wherein the monomer unit has the structure (I) and is 4-methoxy-N-(3-N′ claim 2 ,N′-dimethylaminopropyl)naphthalimide vinyl benzyl chloride quaternary salt claim 2 , or 4-methoxy-N-(3-N′ claim 2 ,N′-dimethylaminopropyl)naphthalimide 2-hydroxy-3-allyloxypropyl chloride quaternary salt; 4-methoxy-N-(3-N′ claim 2 ,N′-dimethylaminopropyl)naphthalimide allyl chloride quaternary salt; the monomer unit has the structure (II) and is N-allyl-4-(2-N′ claim 2 ,N′-dimethylaminoethoxy)naphthalimide methyl sulfate quaternary salt; or the monomer unit has the structure (III) and is 5-allyloxy-4′-carboxy-1 claim 2 ,8-naphthoylene-1′ claim 2 ,2′-benzimidazole or 6-vinylbenzyloxy-4′-carboxy-1 claim 2 ,8-naphthoylene-1′ claim 2 ,2′-benzimidazole.47.-. (canceled)9. The composition of claim 8 , wherein the monomer unit has the structure (IV) and is sulfonated-N-(3-N′ claim 8 ,N′-dimethylaminopropyl)benzo (k claim 8 ,l) xanthene-3 claim 8 ,4-dicarboxylic imide 2-hydroxy-3-allyloxypropyl quaternary salt claim 8 , sulfonated-N-(3-N′ claim 8 ,N′-dimethylaminopropyl)benzo (k claim 8 ,l) xanthene-3 claim 8 ,4-dicarboxylic imide vinyl benzyl chloride quaternary salt claim 8 , or sulfonated-N-(3-N′ claim 8 ,N′-dimethylaminopropyl)benzo (k claim 8 ,l) xanthene-3 claim 8 ,4- ...

PHOSPHOR DISPERSION, LED DEVICE AND METHOD FOR MANUFACTURING SAME

The purpose of the present invention is to provide an LED device having a wavelength conversion layer, which has high durability and is suppressed in chromaticity variation (chromaticity variation of emitted light among devices) and chromaticity unevenness (chromaticity unevenness of emitted light in one light emitting device). This purpose is achieved by a phosphor dispersion which contains phosphor particles, fine light scattering particles, layered clay mineral particles, silicon oxide particles and a solvent, with the content of the fine light scattering particles being 0.1-2.5% by mass. 1. A phosphor dispersion liquid containing phosphor particles , light scattering microparticles , laminar clay mineral particles , silicon oxide particles and a solvent , whereina light scattering microparticles content is 0.1 to 2.5 mass % based on the phosphor particles.2. The phosphor dispersion liquid according to claim 1 , wherein the light scattering microparticles are made of a white pigment.3. The phosphor dispersion liquid according to claim 1 , wherein a refractive index of the light scattering microparticles is 1.6 or more.4. The phosphor dispersion liquid according to having a viscosity of 80 to 1 claim 1 ,000 mPa·s.5. The phosphor dispersion liquid according to claim 1 , wherein the solvent is an aliphatic alcohol.6. An LED device comprising an LED element and a wavelength conversion layer configured to convert light from the LED element to light of another specific wavelength claim 1 , whereinthe wavelength conversion layer contains a ceramic, phosphor particles bound with the ceramic, light scattering microparticles, laminar clay mineral particles, and silicon oxide particles, whereina light scattering microparticles content based on a whole of the wavelength conversion layer is 0.05 to 2 mass % in the wavelength conversion layer.7. The LED device according to further comprising a transparent resin layer disposed on an upper surface of the wavelength conversion ...

Phosphor-Containing Curable Silicone Composition and Curable Hotmelt File Made Therefrom

A phosphor-containing curable silicone composition giving a curable hotmelt film and the curable hotmelt film used for light-emitting semiconductor device are provided. The composition containing the phosphor gives a tack free film at room temperature by half cure and the film is easy to fabricate the desired forms. The fabricated film is easy to pick up them from the support substrate and transferred onto a light emitting semiconductor device at room temperature. The laminated film is molten followed by cured by heating to give excellent permanent adhesion to the device surface. 1. A phosphor-containing curable silicone composition comprising: {'br': None, 'sup': 1', '2', '2', '2', '2', '3, 'sub': 2', '1/2', 'a', '3', '1/2', 'b', '2', '2/2', 'c', '3/2', 'd', '4/2', 'e', '1/2', 'f, '(RRSiO)(RSiO)(RSiO)(RSiO)(SiO)(RO)\u2003\u2003(1)'}, '(A) an alkenyl group-functional organopolysiloxane comprising 78 to 99% by mass of (A-1) an organopolysiloxane resin represented by the following average unit formula (1){'sup': 1', '2', '2', '3, 'wherein Ris an alkenyl group having 2 to 10 carbon atoms; Ris an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, or an aryl group having 6 to 12 carbon atoms, with the proviso that at least 40 mol % of Rare aryl groups; Ris a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; “a” is a number of 0.1 to 0.4, “b” is a number of 0 to 0.3, “c” is a number of 0 to 0.3, “d” is a number of 0.4 to 0.9, “e” is a number of 0 to 0.2, “f” is a number of 0 to 0.05, with the proviso that the sum of “a” to “e” is 1;'} {'br': None, 'sup': 5', '4', '5', '5', '5', '6, 'sub': 3', '1/2', 'g', '2/2', 'h', '2', '2/2', 'i', '3/2', 'j', '4/2', 'k', '1/2', 'l, '(RSiO)(RRSiO)(RSiO)(RSiO)(SiO)(RO)\u2003\u2003(2)'}, '1 to 7% by mass of (A-2) an organopolysiloxane resin represented by the following average unit formula (2){'sup': 4', '5', '5', '6, 'wherein Ris an alkenyl group having 2 to 10 carbon atoms; Ris an alkyl ...

CURABLE COMPOSITION INCLUDING QUANTUM DOT, RESIN LAYER USING THE SAME AND DISPLAY DEVICE

A curable composition includes: (A) a quantum dot; (B) a binder resin including a structural unit represented by Chemical Formula 1-1, a structural unit represented by Chemical Formula 1-2, a structural unit represented by Chemical Formula 1-3, and a structural unit represented by Chemical Formula 2; and (C) a solvent. A resin layer is manufactured using the curable composition, and a display device includes the resin layer. 3. The curable composition of claim 1 , wherein the binder resin satisfies Equation 1:{'br': None, 'i': 'a/a+b≤', '0.1≤0.5\u2003\u2003Equation 1'}wherein, in Equation 1,a denotes the number of acrylate groups in the binder resin, andb denotes the number of thioaryl groups in the binder resin.7. The curable composition of claim 1 , wherein the binder resin has a weight average molecular weight of about 2 claim 1 ,000 g/mol to about 12 claim 1 ,000 g/mol.8. The curable composition of claim 1 , wherein the quantum dot absorbs light at a wavelength of about 360 nm to about 780 nm and emits fluorescence at a wavelength of about 500 nm to about 700 nm.9. The curable composition of claim 1 , wherein the quantum dot comprises a green quantum dot and a red quantum dot.10. The curable composition of claim 1 , wherein the solvent comprises propylene glycol monomethylether acetate claim 1 , dipropylene glycol methylether acetate claim 1 , cyclohexyl acetate claim 1 , ethanol claim 1 , ethylene glycoldimethylether claim 1 , ethylene diglycolmethylethylether claim 1 , diethylene glycoldimethylether claim 1 , dimethyl acetamide claim 1 , 2-butoxyethanol claim 1 , N-methylpyrrolidine claim 1 , N-ethylpyrrolidine claim 1 , propylene carbonate claim 1 , γ-butyrolactone claim 1 , or a combination thereof.11. The curable composition of claim 1 , wherein the curable composition further comprises a reactive unsaturated compound.12. The curable composition of claim 1 , wherein the curable composition further comprises a diffusion agent.13. The curable composition of ...

FLUORESCENT SILLCA NANOPARTICLES USING SILANE-LANTHANUM-BASE COMPLEX COMPOSITE AND CROSS-LINKING REACTION AND METHOD FOR MANUFACTURING SAME

Disclosed is a method of manufacturing lanthanide fluorescent silica nanoparticles, including a complex synthesis step of synthesizing a silane-lanthanide chelate complex, an emulsion formation step of forming a water-in-oil microemulsion by dispersing micelles, the water-phase core of which is introduced with the silane-lanthanide chelate complex, in an oil-phase solvent, a silica introduction step of introducing a silica precursor into the microemulsion, and a nanoparticle synthesis step of synthesizing fluorescent silica nanoparticles by crosslinking the silica precursor and the silane-lanthanide chelate complex in the micelles. The lanthanide fluorescent silica nanoparticles thus manufactured can be utilized in fluorescence analysis of inorganic materials or bio-derived materials. 1. A method of manufacturing lanthanide fluorescent silica nanoparticles , comprising:a complex synthesis step of synthesizing a silane-lanthanide chelate complex;an emulsion formation step of forming a water-in-oil microemulsion by introducing the silane-lanthanide chelate complex into micelles having a water-phase core and dispersing the micelles containing therein the silane-lanthanide chelate complex in an oil-phase solvent;a silica introduction step of introducing a silica precursor into the microemulsion; anda nanoparticle synthesis step of synthesizing fluorescent silica nanoparticles by crosslinking the silica precursor and the silane-lanthanide chelate complex in the micelles.2. The method of claim 1 , wherein the complex synthesis step comprises:a first complex synthesis step of synthesizing a cyanuric chloride-lanthanide chelate by adding and reacting a lanthanide chelate (*R) containing an amine group with cyanuric chloride, anda second complex synthesis step of synthesizing a silane-lanthanide chelate complex by adding and reacting the cyanuric chloride-lanthanide chelate with aminosilane.3. The method of claim 1 , wherein the complex synthesis step is synthesizing a ...

PARTICLES COMPRISING A RELEASABLE DOPANT THEREIN

A process for making particles comprising a hydrophobic dopant for subsequent release therefrom is disclosed. The process comprises providing an emulsion comprising a hydrophilic phase and a hydrophobic phase dispersed in the hydrophilic phase, and reacting the precursor material to form the particles comprising the dopant therein. The hydrophobic phase comprises a precursor material and the dopant. 125.-. (canceled)26. A process for making particles comprising a hydrophobic dopant therein said dopant being releasable from the particles , the process comprising:forming an emulsion comprising a hydrophilic phase and a hydrophobic phase dispersed in the hydrophilic phase, said hydrophobic phase comprising a precursor material and the dopant;adding an aminofunctional silane catalyst to the emulsion, whereby the catalyst penetrates into the hydrophobic phase; andreacting the precursor material in the presence of the catalyst to form the particles comprising the dopant therein,wherein (i) each of the particles is a porous solid particle and (ii) the dopant is distributed substantially homogeneously within and is releasable by diffusion from each particle.27. The process of claim 26 , wherein said hydrophobic phase additionally comprises a solvent.28. The process of claim 26 , wherein said precursor material is selected from the group consisting of hydrolysable organosilica precursors claim 26 , organotitania precursors claim 26 , organoalumina precursors claim 26 , organozirconia precursors claim 26 , and a mixture of any two or more thereof.29. The process of claim 26 , wherein the precursor material comprises an organosilane.30. The process of claim 29 , wherein the organosilane is an organotrialkoxysilane.31. The process of claim 30 , wherein the organotrialkoxysilane is selected from the group consisting of ethyltrimethoxysilane claim 30 , vinyltrimethoxysilane claim 30 , phenyltrimethoxysilane claim 30 , isopropyltrimethoxysilane claim 30 , benzyltrimethoxysilane ...

ENCODED CHROMOPHORIC POLYMER PARTICLES AND METHODS OF USE THEREOF

The present disclosure provides encoded chromophoric polymer particles that are capable of, for example, optical and/or biomolecular encoding of analytes. The present disclosure also provides suspensions comprising a plurality of encoded chromophoric polymer particles. The present disclosure also provides methods of using the encoded chromophoric polymer particles and systems for performing multiplex analysis with encoded chromophoric polymer particles. 1146.-. (canceled)147. An encoded chromophoric polymer particle comprising:a polymer matrix comprising a chromophoric polymer; anda plurality of distinct chromophores, wherein each chromophore of the plurality of distinct chromophores comprises a predetermined set of tunable optical coding parameters, thereby defining an optically detectable code for the polymer particle.148. The encoded chromophoric polymer particle of claim 147 , wherein the optically detectable code comprises a predetermined emission spectrum of the polymer particle claim 147 , a predetermined emission lifetime of the polymer particle claim 147 , or a combination thereof.149. The encoded chromophoric polymer particle of claim 147 , wherein each chromophore has an emission spectrum claim 147 , and wherein the set of tunable optical coding parameters of said chromophore comprises one or more characteristics of the emission spectrum.150. The encoded chromophoric polymer particle of claim 147 , wherein the set of tunable optical coding parameters of each chromophore comprises one or more of: an emission peak intensity claim 147 , an emission peak wavelength claim 147 , or an emission lifetime of the chromophore.151. The encoded chromophoric polymer particle of claim 147 , wherein the set of tunable optical coding parameters of two or more distinct chromophores are independently or semi-independently tunable or modulatable.152. The encoded chromophoric polymer particle of claim 147 , wherein the plurality of distinct chromophores comprises the ...

OPTICAL FILTER, AND SOLID-STATE IMAGE PICKUP DEVICE AND CAMERA MODULE USING THE OPTICAL FILTER

The problem of the present invention is to overcome drawbacks of conventional optical filters such as near-infrared cut filters and to provide an optical filter which generates little scatted light even during light absorption and has excellent transmittance property. The optical filter of the present invention is characterized by containing a squarylium-based compound and a compound which absorbs or quenches fluorescence of the squarylium-based compound. The optical filter of the present invention preferably contains a near-infrared absorbing dye containing a squarylium compound (A) and at least one compound (B) selected from the group consisting of a phthalocyanine-based compound (B-1) and a cyanine-based compound (B-2). 111-. (canceled)12. An optical filter comprising:a squarylium-based compound (A); anda compound which absorbs fluorescence of the squarylium-based compound (A),wherein a difference in the absorption maximum wavelength between the squarylium-based compound (A) and the compound which absorbs fluorescence of the squarylium-based compound (A) is from 1 to 100 nm.13. The optical filter as claimed in claim 12 , further comprising at least one near-ultraviolet absorbing agent selected from the group consisting of an azomethine-based compound claim 12 , an indole-based compound claim 12 , a benzotriazole-based compound and a triazine-based compound.14. The optical filter as claimed in claim 12 , which is for a solid-state image pickup device.15. A solid-state image pickup device equipped with the optical filter as claimed in .16. A camera module equipped with the optical filter as claimed in .17. The optical filter as claimed in claim 12 , comprising a resin substrate which comprises a resin claim 12 , the squarylium-based compound (A) claim 12 , and the compound.18. The optical filter as claimed in claim 17 , wherein the resin is at least one resin selected from the group consisting of a cyclic polyolefin-based resin claim 17 , an aromatic polyether- ...

OPTICAL FILTER, AND SOLID-STATE IMAGE PICKUP DEVICE AND CAMERA MODULE USING THE OPTICAL FILTER

The problem of the present invention is to overcome drawbacks of conventional optical filters such as near-infrared cut filters and to provide an optical filter which generates little scatted light even during light absorption and has excellent transmittance property. The optical filter of the present invention is characterized by containing a squarylium-based compound and a compound which absorbs or quenches fluorescence of the squarylium-based compound. The optical filter of the present invention preferably contains a near-infrared absorbing dye containing a squarylium compound (A) and at least one compound (B) selected from the group consisting of a phthalocyanine-based compound (B-1) and a cyanine-based compound (B-2). 116-. (canceled)17: An optical filter comprising:a resin substrate which comprises a resin and a near-infrared absorbing dye; anda near-infrared reflecting film,wherein the near-infrared absorbing dye comprises a squarylium-based compound (A) and at least one compound (B) selected from the group consisting of a phthalocyanine-based compound (B-1) and a cyanine-based compound (B-2).18: The optical filter according to claim 17 , wherein the absorption maximum of the squarylium-based compound (A) is present on the side of shorter wavelength than the absorption maximum of the compound (B).19: The optical filter according to claim 18 , wherein the squarylium-based compound (A) has an absorption maximum in the wavelength region of not less than 600 nm but less than 800 nm claim 18 , and the compound (B) has an absorption maximum in the wavelength region of more than 600 nm but not more than 800 nm.20: The optical filter according to claim 19 , wherein a difference in the absorption maximum wavelength between the squarylium-based compound (A) and the compound (B) is from 1 to 100 nm.21: The optical filter according to claim 20 , wherein when the amount of the total near-infrared absorbing dye is 100% by weight claim 20 , the content of the squarylium- ...

Led device manufacturing method and fluorescent material-dispersed solution used in same

The present invention addresses the problem of providing an LED device having no color unevenness in light emission. In order to solve the problem, this LED device manufacturing method includes: a step of providing an LED chip-mounted package; a step of film-forming a fluorescent material layer by applying a fluorescent material-dispersed solution to a emission surface of the LED chip, said fluorescent material-dispersed solution containing a solvent, a fluorescent material, clay minerals and porous inorganic particles, and by drying the fluorescent material-dispersed solution; and a step of film-forming a wavelength conversion section by applying, to the fluorescent material layer, a precursor solution having a precursor of a light transmissive ceramic dispersed in a solvent, and by firing the layer, said wavelength conversion section being composed of a light transmissive ceramic layer having the fluorescent material, the clay minerals and the porous inorganic particles dispersed therein.

HYBRID NANOPARTICLES AND ILLUMINATION DEVICES USING THE HYBRID NANOPARTICLES

Hybrid nanoparticles and transparent light guides using the hybrid nanoparticles are disclosed. In some examples, a hybrid nanoparticle may include an organic blue-light emitting material, and an inorganic material bonded to the organic blue-light emitting material. 1. A hybrid nanoparticle comprising:an organic blue-light emitting material; andan inorganic material bonded to the organic blue-light emitting material.2. The hybrid nanoparticle of claim 1 , wherein the organic blue-light emitting material comprises at least one of a blue fluorescent material and a blue phosphorescent material.3. The hybrid nanoparticle of claim 2 , wherein the blue fluorescent material comprises at least one of 9 claim 2 ,10-dibromoanthracene claim 2 , a bis-(triazinylamino)stilbenedisulfonic acid derivative claim 2 , a bis-stilbiphenyl derivative claim 2 , and 2 claim 2 ,5-bis(5-tert-butyl-2-benzoxazolyl)thiophene and wherein the blue phosphorescent material comprises an iridium(III) complex including at least one of tris(2-(2 claim 2 ,4-difluorophenyl)pyridinate)iridium(III) claim 2 , bis(2-(2 claim 2 ,4-difluorophenyl)pyridinate)picolinic acid iridium(III) claim 2 , tris(3 claim 2 ,4 claim 2 ,7 claim 2 ,8-tetramethyl-1 claim 2 ,10-phenantrolinato)iridium(III) claim 2 , and tris(2 claim 2 ,9-dimethyl-4 claim 2 ,7-diphenyl-1 claim 2 ,10-phenanthrolinato)iridium(III).4. (canceled)5. The hybrid nanoparticle of claim 1 , wherein the inorganic material comprises silica.6. The hybrid nanoparticle of claim 1 , wherein the inorganic material is physically bonded to the organic blue-light emitting material claim 1 , covalently bonded to the organic blue-light emitting material claim 1 , or hydrogen-bonded to a resin containing the organic blue-light emitting material.7. (canceled)8. (canceled)9. (canceled)10. The hybrid nanoparticle of claim 1 , further comprising:an inorganic shell encapsulating the organic blue-light emitting material and the inorganic material bonded to each other.11. The ...

Medium For Resin Particles Containing Fluorescent Dye

An object of the present invention is to provide a medium which is capable of inhibiting precipitation and/or aggregation of fluorescent dye-containing resin particles and enables to use the fluorescent dye-containing resin particles for staining after a long-term storage without having to perform complicated operations. The present invention provides a medium for storing fluorescent dye-containing resin particles, wherein, in a particle-containing liquid obtained by adding fluorescent dye-containing resin particles to the medium, the rate of change in the backscatter intensity (transmitted light) at the center of the height of the particle-containing liquid left to stand for 24 hours after the addition is not less than −1% based on the particle-containing liquid immediately after the addition. 1. A medium for storing fluorescent dye-containing resin particles ,wherein, in a particle-containing liquid obtained by adding fluorescent dye-containing resin particles to said medium, the rate of change in the backscatter intensity (transmitted light) at the center of the height of said particle-containing liquid left to stand for 24 hours after said addition is not less than −1% based on said particle-containing liquid immediately after said addition.2. The medium according to claim 1 , comprising a buffer claim 1 , a protein and a surfactant.3. The medium according to claim 2 , wherein said surfactant is a nonionic surfactant.4. The medium according to claim 1 , wherein said fluorescent dye-containing resin particles have a particle size of 40 nm to 200 nm.5. The medium according to claim 1 , wherein the wavelength of a light irradiated at said center of said height is longer than the particle size of said fluorescent dye-containing resin particles.6. The medium according to claim 1 , wherein said fluorescent dye-containing resin particles are used for pathological staining.7. The medium according to claim 1 , wherein said fluorescent dye-containing resin particles ...

Medium For Resin Particles Containing Fluorescent Dye

A method of storing fluorescent dye-containing resin particles comprising adding the fluorescent dye-containing resin particles in a liquid comprising a buffer, a protein, and a surfactant, thereby obtaining a particle-containing liquid. The rate of change in the backscatter intensity (transmitted light) at the center of the height of the particle-containing liquid left to stand for 24 hours after the adding is not less than −1% based on the particle-containing liquid immediately after the adding. 1. A method of storing fluorescent dye-containing resin particles comprising adding the fluorescent dye-containing resin particles in a liquid comprising a buffer , a protein , and a surfactant , thereby obtaining a particle-containing liquid , wherein the rate of change in the backscatter intensity (transmitted light) at the center of the height of said particle-containing liquid left to stand for 24 hours after said adding is not less than −1% based on said particle-containing liquid immediately after said adding.2. The method according to claim 1 , wherein said surfactant is a nonionic surfactant.3. The method according to claim 1 , wherein said fluorescent dye-containing resin particles have a particle size of 40 nm to 200 nm.4. The method according to claim 1 , wherein the wavelength of a light irradiated at said center of said height is longer than the particle size of said fluorescent dye-containing resin particles.5. The method according to claim 1 , wherein said fluorescent dye-containing resin particles are capable of being used for pathological staining.6. The method according to claim 1 , wherein said fluorescent dye-containing resin particles further comprise a reactive functional group.7. The method according to claim 1 , wherein a resin constituting said fluorescent dye-containing resin particles is a thermosetting resin.8. The method according to claim 1 , wherein the protein is casein.9. The method according to claim 1 , wherein the protein comprises 0.6% ...

SURFACE MODIFICATION METHOD FOR FLUORIDE LUMINESCENT MATERIAL AND FLUORIDE LUMINESCENT MATERIAL PREPARED THEREFROM

In a surface modification method for fluoride luminescent materials, an inorganic coating layer AMFcoated substrate AMF:Mn is mixed with an organic solution containing a metal phosphate, an alkoxysilane, an organic carboxylic acid or an organic amine. The solution is evaporated to give the organic-inorganic coating layer coated surface-modified fluoride luminescent material. The phosphor photoluminescence intensity and quantum efficiency of the modified phosphors can be maintained at 85%-95% under high temperature and high humidity conditions. After being coated with the inorganic coating layer, the surface defects of the phosphor are reduced, and the photoluminescence intensity and quantum yield of the phosphor are increased by 5%-15%. After being coated with the organic coating layer, the photoluminescence intensity of the phosphor is reduced <3%. 1. A surface-modified fluoride luminescent material , wherein the luminescent material comprises a substrate , an inorganic coating layer and an organic coating layer , the inorganic coating layer being coated on the outer surface of the substrate , and the organic coating layer being coated on the outer surface of the inorganic coating layer; wherein{'sub': x', 'y', 'x', 'y', 'y, 'sup': 4+', '4+, 'the substrate is AMF:Mn, and the inorganic coating layer is AMF; wherein A is selected from one of alkali metals Li, Na, K, Rb and Cs and a combination thereof; M is selected from one of Ti, Si, Ge, Sn, Zr, Al, Bi, Ga and In, and a combination thereof; x is an absolute value of the charge of [MF] ion; y is 4, 5, 6 or 7; and Mn is a luminescence center ion.'}2. The surface-modified fluoride luminescent material according to claim 1 , wherein x is an absolute value of the charge of [MF] ion claim 1 , and y is 6.3. The surface-modified fluoride luminescent material according to claim 1 , wherein the inorganic coating layer can be a single layer or multiple layers claim 1 , and the organic coating layer coated on the outer surface ...

LIGHT EMITTING APPARATUS, LIGHTING APPARATUS, AND GRIPPING UNIT

A light emitting apparatus includes a light emitting element for emitting light specified by a spectrum having a peak wavelength in a wavelength range from 360 nm to 430 nm, and a wavelength conversion member for converting at least a portion of light emitted by the light emitting element into light specified by a spectrum having a peak wavelength in a wavelength range from 360 nm to 780 nm. The light emitting apparatus emits illumination light formed by a combination of light that is not converted by the wavelength conversion member, from among light emitted by the light emitting element, and light that is converted by the wavelength conversion member. A total energy of light having a wavelength in a range from 360 to 430 nm is between 3% and 18% of a total energy of light having a wavelength included in a range from 360 nm to 780 nm. 1. A light emitting apparatus comprising:a light emitting element configured to emit light specified by a spectrum having a peak wavelength in a wavelength range from 360 nm to 430 nm; anda wavelength conversion member configured to convert at least a portion of light emitted by the light emitting element into light specified by a spectrum having a peak wavelength in a wavelength range from 360 nm to 780 nm,wherein the light emitting apparatus is configured to emit emitted light including light that is not converted by the wavelength conversion member, from among light emitted by the light emitting element, and light that is converted by the wavelength conversion member, anda total energy of light having a wavelength included in the wavelength range from 360 nm to 430 nm in the emitted light is between 3% and 18% of a total energy of light having a wavelength included in the wavelength range from 360 nm to 780 nm.2. The light emitting apparatus according to claim 1 ,wherein the emitted light is specified by a spectrum having a peak wavelength in a wavelength range from 400 nm to 410 nm.3. The light emitting apparatus according to ...

Wavelength conversion member and light emitting device

The present invention has an object of providing a wavelength conversion member and a light emitting device which have a high luminescence intensity. A wavelength conversion member 10 contains phosphor particles 2 in a matrix 1 and has a haze value of 0.7 to 0.999 in a visible wavelength range where an excitation spectrum of the phosphor particles 2 shows a spectral intensity of 5% or less of a maximum peak intensity.

Novel transparency and color tunable electro-optical device using colloidal core/shell nanoparticles

According to one embodiment, a product is a mixture including a solvent and generally spherical colloidal nanoparticles, the colloidal nanoparticles each having a core and a shell surrounding the core, and an electrode. In addition, the mixture is characterized as having a transparency to light in a predetermined wavelength range, where the transparency increases as a voltage of the electrode increases.

COLOR CONVERSION LAYER AND DISPLAY APPARATUS HAVING THE SAME

Disclosed is a color conversion layer including at least one light emitting material including at least one composite particle surrounded partially or totally by at least one surrounding medium; wherein the light emitting material is configured to emit light in response to an excitation and the at least one composite particle includes a plurality of nanoparticles encapsulated in an inorganic material; and wherein the inorganic material has a difference of refractive index compared to the at least one surrounding medium superior or equal to 0.02 at 450 nm. Also disclosed is a display apparatus. 147171. A color conversion layer () comprising at least one light emitting material () comprising at least one composite particle () surrounded partially or totally by at least one surrounding medium ();{'b': 7', '1', '3', '2', '2', '71, 'wherein said at least one light emitting material () is configured to emit a secondary light in response to an excitation and the at least one composite particle () comprises a plurality of nanoparticles () encapsulated in an inorganic material (); and wherein said inorganic material () has a difference of refractive index compared to the at least one surrounding medium () superior or equal to 0.02 at 450 nm.'}2422. The color conversion layer () according to claim 1 , wherein the inorganic material () limits or prevents the diffusion of outer molecular species or fluids (liquid or gas) into said inorganic material ().34171. The color conversion layer () according to claim 1 , wherein the at least one composite particle () in the at least one surrounding medium () is configured to scatter light.44171. The color conversion layer () according to claim 1 , wherein the at least one composite particle () in the at least one surrounding medium () is configured to serve as a waveguide.544. The color conversion layer () according to claim 1 , wherein the color conversion layer () absorbs at least 70% of incident light on a thickness less or equal to 5 ...

Compound, organic electroluminescent device material, organic electroluminescent device, and electronic equipment

Disclosed are a compound having, as a main skeleton, a polycyclic structure represented by the following general formula (1), a material for organic electroluminescence devices including the compound, an organic electroluminescence device using the compound, and electronic equipment having the organic electroluminescence device mounted thereon. A compound capable of realizing an organic EL device with high emission efficiency, a material for organic electroluminescence devices including the compound, an organic electroluminescence device using the compound, and electronic equipment having the organic electroluminescence device mounted thereon, are provided. In the formula (1), A, L, X 1 to X 16 , R, R A , and R B are those defined in the specification.

CONDENSED CYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME

A condensed cyclic compound represented by Formula 1, comprising at least one cyano (—CN) group: 3. The condensed cyclic compound of claim 1 , wherein{'sub': 1', '2', '2', '3', '3', '4', '4', '5', '5', '6', '6', '7', '7', '8', '8', '11', '11', '12', '12', '13', '13', '14', '14', '15', '15', '16', '16', '17', '17', '18', '18, 'Xis N, Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), and Xis C(R),'}{'sub': 1', '1', '2', '3', '3', '4', '4', '5', '5', '6', '5', '7', '7', '8', '8', '11', '11', '12', '12', '13', '13', '14', '14', '15', '15', '16', '16', '17', '17', '18', '18, 'Xis C(R), Xis N, Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), and Xis C(R),'}{'sub': 1', '1', '2', '2', '3', '4', '4', '5', '5', '6', '6', '7', '7', '8', '8', '11', '11', '12', '12', '13', '13', '14', '14', '15', '15', '16', '16', '17', '17', '13', '18, 'Xis C(R), Xis C(R), Xis N, Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R); and Xis C(R),'}{'sub': 1', '1', '2', '2', '3', '3', '4', '5', '5', '6', '6', '7', '7', '8', '8', '11', '11', '12', '12', '13', '13', '14', '14', '15', '15', '16', '16', '17', '17', '18', '18, 'Xis C(R), Xis C(R), Xis C(R), Xis N, Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), and Xis C(R),'}{'sub': 1', '1', '2', '2', '3', '3', '4', '4', '5', '6', '6', '7', '7', '8', '8', '11', '11', '12', '12', '13', '13', '14', '14', '15', '15', '16', '16', '17', '17', '18', '18, 'Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis N, Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), Xis C(R), and Xis C(R),'}{'sub': 1', '1', '2', '2', '3', '3', '4', '4', '5', '5', '6', '7', '7', '8', '8', '11', '11', '12', '12', '13', '13', '14', '14', '15', '15', '16', ' ...

COMPOUND FOR ORGANIC OPTOELECTRONIC DIODE, ORGANIC OPTOELECTRONIC DIODE COMPRISING SAME, AND DISPLAY DEVICE

The present invention relates to: a compound for an organic optoelectronic diode, represented by a combination of chemical formulas 1 and 2; an organic optoelectronic diode comprising the same; and a display device comprising the organic optoelectronic diode. The detailed contents of formulas 1 and 2 are the same as those defined in the specification. 3. The compound for an organic optoelectronic diode as claimed in claim 1 , wherein the Xis C-L-Rand Xis C-L-R.4. The compound for an organic optoelectronic diode as claimed in claim 1 , wherein the Rto Rare independently hydrogen claim 1 , deuterium claim 1 , a substituted or unsubstituted C6 to C30 arylamine group claim 1 , a substituted or unsubstituted phenyl group claim 1 , a substituted or unsubstituted biphenyl group claim 1 , a substituted or unsubstituted terphenyl group claim 1 , a substituted or unsubstituted quaterphenyl group claim 1 , a substituted or unsubstituted naphthyl group claim 1 , a substituted or unsubstituted anthracenyl group claim 1 , a substituted or unsubstituted phenanthrenyl group claim 1 , a substituted or unsubstituted pyrenyl group claim 1 , a substituted or unsubstituted triphenylene group claim 1 , a substituted or unsubstituted fluorenyl group claim 1 , a substituted or unsubstituted imidazolyl group claim 1 , a substituted or unsubstituted triazolyl group claim 1 , a substituted or unsubstituted tetrazolyl group claim 1 , a substituted or unsubstituted oxadiazolyl group claim 1 , a substituted or unsubstituted oxatriazolyl group claim 1 , a substituted or unsubstituted thiatriazolyl group claim 1 , a substituted or unsubstituted benzimidazolyl group claim 1 , a substituted or unsubstituted benzotriazolyl group claim 1 , a substituted or unsubstituted pyridinyl group claim 1 , a substituted or unsubstituted pyrimidinyl group claim 1 , a substituted or unsubstituted triazinyl group claim 1 , a substituted or unsubstituted pyrazinyl group claim 1 , a substituted or unsubstituted ...

ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES

New metal complexes containing a substituted fused aromatic moiety is disclosed. The substituents on the fused aromatic moiety fine-tune molecular energy levels and solid-state self-assembly, conducive to improved material performance in devices useful for phosphorescent organic light emitting devices. 2. The compound of claim 1 , wherein M is selected from the group consisting of Ir claim 1 , Rh claim 1 , Re claim 1 , Ru claim 1 , Os claim 1 , Pt claim 1 , Au claim 1 , and Cu.3. The compound of claim 1 , wherein M is Ir or Pt.4. (canceled)5. (canceled)6. The compound of claim 1 , wherein Zis a carbon.7. The compound of claim 1 , wherein ring A is benzene.10. The compound of claim 1 , wherein Rand Gare each independently selected from the group consisting of alkyl claim 1 , cycloalkyl claim 1 , and substituted variants thereof.14. The compound of claim 13 , wherein the compound has the formula of Ir(L)(L); wherein n is 1 claim 13 , 2 claim 13 , or 3.16. The compound of claim 15 , wherein the compound is Compound x having the formula Ir(L)(L);wherein x=300i+j−300; i is an integer from 1 to 232, and j is an integer from 1 to 300.18. The OLED of claim 17 , wherein the organic layer is an emissive layer and the compound is an emissive dopant or a non-emissive dopant.19. (canceled)20. The OLED of claim 17 , wherein the organic layer further comprises a host claim 17 , wherein host comprises at least one chemical group selected from the group consisting of triphenylene claim 17 , carbazole claim 17 , indolocarbazole claim 17 , dibenzothiophene claim 17 , dibenzofuran claim 17 , dibenzoselenophene claim 17 , azatriphenylene claim 17 , azacarbazole claim 17 , aza-indolocarbazole claim 17 , aza-dibenzothiophene claim 17 , aza-dibenzofuran claim 17 , and aza-dibenzoselenophene.22. (canceled)24. The consumer product of claim 23 , wherein the consumer product is selected from the group consisting of flat panel displays claim 23 , computer monitors claim 23 , medical monitors ...

Color conversion composition, color conversion sheet, and light source unit, display and lighting device each comprising same

A color conversion composition that converts incident light into light having a longer wavelength than the incident light is described, the color conversion composition including the following components (A) and (B): component (A): an organic light-emitting material; and component (B): a resin whose molecular structure has a fluorene skeleton.

SEMICONDUCTOR NANOPARTICLES AND METHOD OF PRODUCING SEMICONDUCTOR NANOPARTICLES

A semiconductor nanoparticle includes a core and a shell covering a surface of the core. The shell has a larger bandgap energy than the core and is in heterojunction with the core. The semiconductor nanoparticle emits light when irradiated with light. The core is made of a semiconductor that contains M, M, and Z. Mis at least one element selected from the group consisting of Ag, Cu, and Au. Mis at least one element selected from the group consisting of Al, Ga, In and Tl. Z is at least one element selected from the group consisting of S, Se, and Te. The shell is made of a semiconductor that consists essentially of a Group 13 element and a Group 16 element. 1. A semiconductor nanoparticle comprising:a core comprising a semiconductor being adapted to emit photoluminescence upon being irradiated with light; anda shell covering a surface of the core and having a bandgap energy larger than a bandgap energy of the core, the shell being in heterojunction with the core,{'sup': 1', '2', '1, 'claim-text': [{'sup': '2', 'Mis at least one element selected from the group consisting of Al, Ga, In, and Tl, and comprises at least In,'}, 'and Z is at least one element selected from the group consisting of S, Se, and Te, and comprises at least S,, 'wherein the semiconductor contains M, M, and Z, wherein Mis at least one element selected from the group consisting of Ag, Cu, and Au, and comprises at least Ag,'}wherein the shell comprises a semiconductor containing a Group 13 element and a Group 16 element, andwherein a photoluminescence lifetime of the semiconductor nanoparticles is 200 ns or less.2. The semiconductor nanoparticle according to claim 1 , wherein the shell contains In as the Group 13 element.3. The semiconductor nanoparticle according to claim 2 , wherein the shell contains S as the Group 16 element.4. The semiconductor nanoparticle according to claim 1 , wherein the shell contains Ga as the Group 13 element.5. The semiconductor nanoparticle according to claim 4 , wherein ...