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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 10522704 B1

PDFFull Text
Date of Patent:
Dec. 31, 2019

Filed:

Feb. 12, 2016

Solar cell, method for manufacturing same

Applicant:

Kaneka Corporation, Osaka-shi, Osaka, JP;

Inventors:

Daisuke Adachi, Settsu, JP;

Toru Terashita, Settsu, JP;

Assignee:

KANEKA CORPORATION, Osaka, JP;

Attorney:

HEA Law PLLC

Primary Examiner:

Duy T Nguyen

Int. Cl.
CPC ...
H01L 31/0747 (2012.01); H01L 31/0224 (2006.01); H01L 31/20 (2006.01); H01L 31/0376 (2006.01); H01L 31/18 (2006.01); H01L 31/0745 (2012.01); H01L 31/0216 (2014.01); H01L 31/0236 (2006.01);
U.S. Cl.
CPC ...
H01L 31/0747 (2013.01); H01L 31/02167 (2013.01); H01L 31/02363 (2013.01); H01L 31/022433 (2013.01); H01L 31/022466 (2013.01); H01L 31/03762 (2013.01); H01L 31/0745 (2013.01); H01L 31/1804 (2013.01); H01L 31/208 (2013.01); Y02E 10/547 (2013.01); Y02P 70/521 (2015.11);
Abstract

The solar cell includes a collecting electrode on a first principal surface of a photoelectric conversion section. The collecting electrode comprises a first electroconductive layer and a second electroconductive layer in this order from the photoelectric conversion section side. An insulating layer is provided on the first principal surface of the photoelectric conversion section so as to cover substantially the entire surface of the region where the first electroconductive layer is not provided and a part of the first electroconductive layer. The insulating layer on the first electroconductive layer has an opening, and the second electroconductive layer is a plating layer that is in conduction with the first electroconductive layer through the opening section of the insulating layer. The first electroconductive layer contains a metal particle component and an insulating material. The metal particle component of the first electroconductive layer includes primary particles and secondary particles. It is preferable that in a cross-section of the first electroconductive layer, the area ratio of the secondary particles to the total of the primary particles and the secondary particles and the coefficient of variation of the particle size are respectively within specific ranges.

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