11-02-2016 дата публикации
Номер: US20160043449A1
Принадлежит:
An efficient perovskite solar cells can be synthesized from used car batteries by using both the anodes and cathodes of car batteries as material sources for the synthesis of lead iodide perovskite materials. 1. A method of fabricating perovskite solar cells comprising:harvesting lead-derived materials from the anodes and cathodes of a car battery as a recovery solution;synthesizing recovered lead iodide from the lead-derived materials from the recovery solution;forming recovered lead iodide perovskite nanocrystals from the recovered lead iodide; anddepositing the recovered lead iodide perovskite nanocrystals on a substrate.2. The method of claim 1 , wherein the perovskite has the formula (I):{'br': None, 'sub': x', '1 -x', 'y', '1-y', '3±δ, 'AA′BB′O\u2003\u2003(I)'}whereineach of A and A′, independently, is a rare earth, alkaline earth metal, or alkali metal;each of B and B′, independently, is a transition metal;x is in the range of 0 to 1;y is in the range of 0 to 1; andδ is in the range of 0 to 1.3. The method of claim 2 , wherein A and A′ claim 2 , independently claim 2 , are selected from the group consisting of methylammonium claim 2 , 5-aminovaleric acid claim 2 , Mg claim 2 , Ca claim 2 , Sr claim 2 , Ba claim 2 , Pb claim 2 , and Bi; and B and B′ claim 2 , independently claim 2 , are selected from the group consisting of Pb claim 2 , Sn claim 2 , Ti claim 2 , Zr claim 2 , V claim 2 , Nb claim 2 , Mn claim 2 , Fe claim 2 , Ru claim 2 , Co claim 2 , Rh claim 2 , Ni claim 2 , Pd claim 2 , Pt claim 2 , Al claim 2 , and Mg.4. The method of claim 2 , wherein the perovskite is a strontium titanate.5. The method of claim 2 , wherein the perovskite is a bismuth ferrite.6. The method of claim 2 , wherein the perovskite is a tantalum oxide claim 2 , tantalum oxynitride or tantalum nitride.7. The method of claim 6 , wherein the perovskite is sodium tantalate claim 6 , zirconium oxide/tantalum oxynitride claim 6 , zirconium tantalum oxynitride claim 6 , tantalum ...
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