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:
Feb. 20, 2018
Filed:
Sep. 14, 2015
Applicant:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Inventors:
Zhenqiang Ma, Middleton, WI (US);
Kanglin Xiong, Madison, WI (US);
Hongyi Mi, Madison, WI (US);
Tzu-Hsuan Chang, Madison, WI (US);
Shaoqin Gong, Middleton, WI (US);
Jung-Hun Seo, Madison, WI (US);
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0693 (2012.01);
U.S. Cl.
CPC ...
H01L 31/0693 (2013.01); Y02E 10/544 (2013.01);
Abstract
Tandem solar cells comprising two or more solar cells connected in a solar cell stack via pn diode tunnel junctions and methods for fabricating the tandem solar cells using epitaxial lift off and transfer printing are provided. The tandem solar cells have improved tunnel junction structures comprising a current tunneling layer integrated between the p and n layers of the pn diode tunnel junction that connects the solar cells.