03-02-2022 дата публикации
Номер: US20220037597A1
Принадлежит:
The present disclosure relates to a composition that includes a first layer that includes a perovskite defined by ABXand a second layer that includes a perovskite-like material defined by at least one of A′B′X′, A′B′X′, A′B′X′, A′B′X′, and/or A′AB′X′, where the first layer is adjacent to the second layer, A is a first cation, B is a second cation, X is a first anion, A′ is a third cation, B′ is a fourth cation, X′ is a second anion, and A′ is different than A. 1. A composition comprising:{'sub': '3', 'a first layer comprising a perovskite defined by ABX; and'}{'sub': 2', '4', '3', '2', '9', '4', '2', '6', '2', '2', '7, 'a second layer comprising a perovskite-like material defined by at least one of A′B′X′, A′B′X′, A′B′X′, A′B′X′, or A′AB′X′, whereinthe first layer is adjacent to the second layer,A is a first cation, B is a second cation, X is a first anion,A′ is a third cation, B′ is a fourth cation, X′ is a second anion, andA′ is different than A.2. The composition of claim 1 , wherein A′ comprises an ammonium functional group.3. The composition of claim 2 , wherein A′ comprises at least one of butylammonium (BA) claim 2 , phenylethylammonium (PEA) claim 2 , 4-flouorophenethylammonium (F-PEA) claim 2 , N-methyl-1 claim 2 ,3-propane diammonium (ME-PDA) claim 2 , 1 claim 2 ,4-butane diammonium (BDA) claim 2 , or N claim 2 ,N-dimethyl-1 claim 2 ,3-propane diammonium (DMePDA) claim 2 , dipropylammonium claim 2 , or diethylammonium.4. The composition of claim 1 , wherein the second layer has a thickness between about 1 nm and about 1 μm.5. The composition of claim 4 , wherein the thickness is between about 10 nm and about 100 nm.6. The composition of claim 1 , wherein the first layer has a thickness between about 200 nm and about 1000 nm.7. The composition of claim 1 , wherein X comprises a halide.8. The composition of claim 7 , wherein X comprises at least one of iodide claim 7 , bromide claim 7 , or chloride.9. The composition of claim 1 , wherein B comprises at least ...
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