Organic-inorganic hybrid perovskite compounds
AssigneeNorthwestern University
InventorsWeijun Ke, Konstantinos Stoumpos, Ioannis Spanopoulos, Mercouri G. Kanatzidis
Life of this patent
Estimating the term…
Abstract
Photoactive materials comprising organic-inorganic hybrid halide perovskite compounds are provided. Photovoltaic cells and light-emitting devices incorporating the photoactive materials into their light-absorbing and light-emitting layers, respectively, are also provided. The halide perovskites have an amAMX3 perovskite crystal structure, wherein am is an alkyl diamine cation, an aromatic diamine cation, an aromatic azole cation, a cyclic alkyl diamine cation or a hydrazinediium cation; A is a monovalent alkylammonium cation or an alkali metal cation; X is a halide ion or a combination of halide ions; and M is an octahedrally coordinated bivalent metal atom.
Claims17
A crystalline halide perovskite having a three-dimensional amAMX3 perovskite crystal structure, wherein am is an alkyl diamine cation, an aromatic diamine cation, an aromatic azole cation, a cyclic alkyl diamine cation or a hydrazinediium cation;
- A is an alkali metal cation, X is a halide ion, and M is an octahedrally coordinated bivalent metal atom.
A crystalline halide perovskite selected from:
- amASnI3, where A is methylammonium and am is an alkyl diamine cation, an aromatic diamine cation, an aromatic azole cation, a cyclic alkyl diamine cation or a hydrazinediium cation;
- enASnI3, where en is ethylene diammonium and A is formamidinium;
- and enAPbI3, where en is ethylene diammonium and A is formamidinium.
Dependencies are inferred from the claim text.