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 9640685 B1

PDF
Full Text
Expired
Date of Patent:
May. 02, 2017

Filed:

Oct. 16, 2012
Applicant:

Lg Innotek Co., Ltd., Seoul, KR;

Inventor:

Myoung Seok Sung, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0296 (2006.01); H01L 31/032 (2006.01); H01L 31/0749 (2012.01); H01L 31/18 (2006.01);
U.S. Cl.
CPC ...
H01L 31/0296 (2013.01); H01L 31/0322 (2013.01); H01L 31/0749 (2013.01); H01L 31/1828 (2013.01); Y02E 10/541 (2013.01);
Abstract

Disclosed are a solar cell and a method of fabricating the solar cell. The solar cell includes a back electrode layer; a light absorbing layer on the back electrode layer; and a buffer layer on the light absorbing layer, wherein the buffer layer includes a first buffer layer, a second buffer layer on the first buffer layer and a third buffer layer on the second buffer layer, and wherein the first buffer layer includes a group I-VI compound. A method of fabricating a solar cell includes the steps of: forming a back electrode layer on a substrate; forming a light absorbing layer on the back electrode layer; forming a second buffer layer on the light absorbing layer including selenium; and forming a third buffer layer including sulfide on the second buffer layer.


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Sung, Myoung. (2017). Solar cell and method of fabricating the same (U.S. Patent No. 9640685). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9640685

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