Perovskite photoelectric functional material modified with amphipathic molecule, and methods for preparing and using the same

Patent metadata

Field	Value
Publication number	US-10059875-B2
Application number	US-201514979477-A
Country	US
Kind code	B2
Filing date	Dec 27, 2015
Priority date	Jan 21, 2014
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A perovskite-based photoelectric functional material having a general formula M z A y BX z+y+2 . The matrix of the photoelectric functional material is a perovskite material ABX 3 , M is an organic amphipathic molecule used as a modification component of the matrix, 0<z≤0.5, 0<y≤1, and y+z≥1.

First claim

The invention claimed is:

1. A photoelectric material, having a general formula M z A y BX z+y+2 , wherein:
a matrix of the photoelectric functional material is a perovskite material ABX 3 ;
A is a monovalent ion;
B is a divalent metal ion;
X is a halide ion;
0<z≤0.5;
0<y≤1;
y+z≥1; and
M is an organic amphipathic molecule used as a modification component of the matrix, and has a formula of R 1 —R—R 2 , wherein R 1 is selected from the group consisting of —NH 2 , —NH—C(NH 2 )═NH and —N═CH—NH 2 , R 2 is selected from the group consisting of —COOH, —OSiOH, —O 3 POH and —O 2 SOH, and R is an organic group.

2. The material of claim 1 , wherein A is an organic amine cation or an alkali metal ion, and A is selected from the group consisting of methylammonium ion, formamidine ion, and cesium ion.

3. The material of claim 1 , wherein B is selected from the group consisting of lead, tin, copper and germanium.

4. The material of claim 2 , wherein B is selected from the group consisting of lead, tin, copper and germanium.

5. The material of claim 1 , wherein R is selected from the group consisting of linear alkyl, branched alkyl and halogenated C 1-30 -alkyl, C 3-12 -cycloalkyl, C 1-12 -heterocycle, C 2-8 -alkenyl, C 2-8 -alkynyl, C 6-12 -aryl, C 6-30 -aralkyl, C 6-30 -alkylaryl, C 1-12 -heteroaryl, C 6-30 -alkyl heteroaryl and C 6-30 -alkyl heterocycle.

6. The material of claim 1 , wherein X is selected from the group consisting of chlorine, bromine and iodine.

Assignees

• Univ Huazhong Science Tech
• Wonder Solar Llc

Inventors

• Han Hongwei
• Mei Anyi

Classifications

• C09K2211/10

  Non-macromolecular compounds · CPC title

• Y02E10/549

  Organic PV cells · CPC title

• H01L2031/0344

  Electricity · mapped topic

• C01P2006/40

  Electric properties · CPC title

• C09K9/02 Primary

  Organic tenebrescent materials · CPC title