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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.

Patent No.:

US 12707885 B1

PDFFull Text
Date of Patent:
Aug. 11, 2026

Filed:

Jan. 25, 2023

Defect engineering in wide bandgap perovskites for efficient and stable fully textured perovskite-silicon tandem solar cells

Applicant:

The University of North Carolina AT Chapel Hill, Chapel Hill, NC (US);

Inventors:

Jinsong Huang, Chapel Hill, NC (US);

Guang Yang, Chapel Hill, NC (US);

Assignee:

THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL, Chapel Hill, NC (US);

Attorney:

Alston & Bird LLP

Primary Examiner:

Eli S Mekhlin

Int. Cl.
CPC ...
H10K 85/50 (2023.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01); C09D 11/52 (2014.01); H10F 77/70 (2025.01); H10K 30/10 (2023.01); H10K 30/57 (2023.01); H10K 85/10 (2023.01); H10K 85/20 (2023.01); H10K 85/60 (2023.01);
U.S. Cl.
CPC ...
H10K 85/50 (2023.02); C09D 11/033 (2013.01); C09D 11/037 (2013.01); C09D 11/52 (2013.01); H10F 77/703 (2025.01); H10K 30/10 (2023.02); H10K 30/57 (2023.02); H10K 85/111 (2023.02); H10K 85/211 (2023.02); H10K 85/658 (2023.02);
Abstract

Described herein are perovskite ink solutions comprising a composition of Formula I (APbIBr), a tribromide salt, and a solvent, wherein z is defined herein. Further described are perovskite films prepared using the ink solutions, methods for preparing the perovskite films, and use of the films in wide band gap single junction and tandem solar cells. As shown herein, solar cells fabricated using the perovskite films prepared from ink solutions comprising a tribromide salt achieve enhanced efficiency compared to solar cells comprising a perovskite film prepared without the tribromide salt.

Find Patent Forward Citations

Huang, Jinsong. (2026). Defect engineering in wide bandgap perovskites for efficient and stable fully textured perovskite-silicon tandem solar cells (U.S. Patent No. 12707885). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12707885

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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