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:
Mar. 13, 2018
Filed:
Aug. 01, 2014
Applicant:
Sanyo Electric Co., Ltd., Moriguchi-shi, Osaka, JP;
Inventor:
Ayumu Yano, Izumiotsu, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 31/0747 (2012.01); H01L 31/0376 (2006.01); H01L 31/028 (2006.01);
U.S. Cl.
CPC ...
H01L 31/03762 (2013.01); H01L 31/028 (2013.01); H01L 31/0747 (2013.01); Y02E 10/547 (2013.01); Y02E 10/548 (2013.01);
Abstract
A solar cell includes: a crystal silicon substrate of a first conductivity type including a first principal surface and a second principal surface; a first amorphous silicon film of a second conductivity type provided on a side of the first principal surface; and a second amorphous silicon film of the first conductivity type provided on a side of the second principal surface. At least one of the first amorphous silicon film and the second amorphous silicon film has a multi-layer structure comprising layers. An oxygen-rich layer is provided between any adjacent two of the amorphous silicon layers in the multi-layer structure.