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.:
Date of Patent:
Dec. 31, 2024
Filed:
Sep. 16, 2021
Applicant:
The University of North Carolina AT Chapel Hill, Chapel Hill, NC (US);
Inventors:
Shangshang Chen, Chapel Hill, NC (US);
Jinsong Huang, Chapel Hill, NC (US);
Assignee:
THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL, Chapel Hill, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 71/20 (2023.01); B08B 7/00 (2006.01); C07F 7/24 (2006.01); C07F 19/00 (2006.01); H10K 30/40 (2023.01); H10K 30/50 (2023.01); H10K 85/50 (2023.01);
U.S. Cl.
CPC ...
H10K 71/20 (2023.02); B08B 7/0028 (2013.01); C07F 7/24 (2013.01); C07F 19/00 (2013.01); H10K 30/40 (2023.02); H10K 30/50 (2023.02); H10K 85/50 (2023.02);
Abstract
Described herein are surface treatment methods for removing one or more surface defect layers from polycrystalline films, polycrystalline films that are free of one or more defect surface layers, and use of the films in solar cells. In certain embodiments, the method is conducted by means of an adhesive tape or mechanical polishing. As described herein, solar cells containing the surface treated perovskite films show enhanced efficiency and stability.