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US 2024/0373736 A1Published application
Materials and Methods to Improve the Stability of Metal Halide Perovskites
AssigneeThe University of Toledo
InventorsYanfa Yan, Chongwen Li, Baicheng Weng
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Abstract
Materials and methods for improving the stability of perovskites are described.
Claims15
A solar cell comprising:
- a front contact comprising a first electrically conductive material;
- a photovoltaic heterojunction on the front contact, wherein the photovoltaic heterojunction is formed between a first semiconductor layer and a second semiconductor layer, the second semiconductor layer comprising an absorber, wherein the absorber comprises a metal halide perovskite having a formula of ABX3 wherein:
- A is methylamine (MA), formamidine (FA), or cesium (Cs),
- B is lead (Pb), tin (Sn), or a combination thereof;
- and
- X is a halogen;
- a hydrophobic molecule bonded to the metal halide perovskite, wherein the hydrophobic molecule coordinates with the lead or tin in the metal halide perovskite;
- and
- a back contact comprising a second electrically conductive material on the absorber layer.
6 more elements
A solar cell comprising:
- a front contact comprising a first electrically conductive material;
- an absorber on the front contact, wherein the absorber comprises a metal halide perovskite having a formula of ABX3 wherein:
- A is methylamine (MA), formamidine (FA), or cesium (Cs),
- B is lead (Pb), tin (Sn), or a combination thereof;
- and
- X is a halogen;
- a hydrophobic molecule bonded to the metal halide perovskite, wherein the hydrophobic molecule coordinates with the lead or tin in the metal halide perovskite;
- a back contact comprising a second electrically conductive material on the absorber layer;
- and
- a hole transport layer disposed between the absorber layer and the back contact.
7 more elements
Dependencies are inferred from the claim text.