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US 2022/0037597 A1Published application
Compositions and methods for stabilizing perovskite interfaces
AssigneeAlliance for Sustainable Energy, LLC
InventorsAxel Finn PALMSTROM, Kai ZHU, Fei ZHANG, Joseph Jonathan BERRY
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Abstract
The present disclosure relates to a composition that includes a first layer that includes a perovskite defined by ABX3 and a second layer that includes a perovskite-like material defined by at least one of A′2B′X′4, A′3B′2X′9, A′B′X′4, A′2B′X′6, and/or A′2AB′2X′7, 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.
Claims20
A composition comprising:
- a first layer comprising a perovskite defined by ABX3;
- and
- a second layer comprising a perovskite-like material defined by at least one of A′2B′X′4, A′3B′2X′9, A′B′X′4, A′2B′X′6, or A′2AB′2X′7, wherein:
- 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.
4 more elements
A device comprising:
- a first layer comprising:
- a perovskite;
- a surface that is substantially planar;
- the surface comprises a cut into the surface;
- and
- the cut penetrates the surface and the first layer and comprises a width, a depth, a length, and an internal surface;
- a second layer comprising a perovskite-like material, wherein:
- the second layer covers at least a portion of the internal surface.
5 more elements
A method comprising:
- depositing a second layer onto a first layer, wherein:
- the first layer comprises a perovskite,
- the second layer comprises a perovskite-like layer, and
- the depositing is performed using at least one of a solution method and/or a vapor-phase method.
1 more element
Dependencies are inferred from the claim text.