The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 08, 2022

Filed:

Apr. 30, 2020
Applicant:

The Florida State University Research Foundation, Inc., Tallahassee, FL (US);

Inventors:

Hanwei Gao, Tallahassee, FL (US);

Biwu Ma, Tallahassee, FL (US);

Yichuan Ling, Tallahassee, FL (US);

Xi Wang, Tallahassee, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 21/00 (2006.01); H01L 33/26 (2010.01); H01L 31/0328 (2006.01); C07F 7/24 (2006.01); H01L 51/50 (2006.01); H01L 51/42 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
C01G 21/006 (2013.01); C07F 7/24 (2013.01); H01L 31/0328 (2013.01); H01L 33/26 (2013.01); H01L 51/005 (2013.01); H01L 51/4246 (2013.01); H01L 51/4273 (2013.01); H01L 51/502 (2013.01); C01P 2002/34 (2013.01); C01P 2002/60 (2013.01); C01P 2002/84 (2013.01); C01P 2002/90 (2013.01); H01L 2251/301 (2013.01);
Abstract

Bandgap-tunable perovskite compositions are provided having the formula CsPb(AB), wherein A and B are each a halogen. The mixed halide perovskite composition has a morphology which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition. For example, the perovskite may be in the form of nanocrystals embedded in a non-perovskite matrix, which, for example, may have the formula CsPb(AB), wherein A and B are each a halogen. Solar cells and light-emitting diodes comprising the mixed perovskite compositions are also provided.


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