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:
Jun. 25, 2024
Filed:
Dec. 23, 2019
Applicant:
First Solar, Inc., Tempe, AZ (US);
Inventors:
Rick Powell, Ann Arbor, MI (US);
Jongwoo Choi, Boise, ID (US);
Assignee:
First Solar, Inc., Tempe, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/044 (2014.01); H01L 31/073 (2012.01);
U.S. Cl.
CPC ...
H01L 31/073 (2013.01);
Abstract
A photovoltaic device includes an electron blocking layer (EBL) and an absorber layer. The EBL is positioned between the absorber layer and a back contact layer. A material of the EBL is a cadmium zinc telluride CdZnTe, and a material of the absorber layer is a cadmium telluride selenide CdTeSeproducing a lattice mismatch between the materials of the EBL and between the materials of the absorber of less than about two tenths of a percent when x˜y and has a value less than about 0.4.