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.

Date of Patent:
Jul. 10, 2018

Filed:

Sep. 26, 2014
Applicant:

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

Inventor:

Dong Keun Lee, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/00 (2006.01); H01L 31/0749 (2012.01); H01L 31/0224 (2006.01); H01L 31/0463 (2014.01); H01L 31/0352 (2006.01);
U.S. Cl.
CPC ...
H01L 31/0749 (2013.01); H01L 31/022425 (2013.01); H01L 31/022441 (2013.01); H01L 31/035281 (2013.01); H01L 31/0463 (2014.12); Y02E 10/541 (2013.01); Y02P 70/521 (2015.11);
Abstract

A solar cell, according to one embodiment, comprises: a support substrate; a rear electrode layer arranged on the support substrate; an optical absorption layer arranged on the rear electrode layer; a buffer layer arranged on the optical absorption layer; and a front electrode layer arranged on the buffer layer, wherein a first through-groove penetrating through the rear electrode layer and the optical absorption layer is formed on the rear electrode layer and the optical absorption layer, and the optical absorption layer comprises: a first optical absorption layer arranged on the rear electrode layer; and a second optical absorption layer arranged to make contact with an inner side surface of the rear electrode layer exposed by the first through-groove.


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