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Patent Searching and Data


Title:
SOLAR CELL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/188716
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a solar cell capable of achieving both improvement in light use efficiency and improvement in photogenerated carrier recovery efficiency. This solar cell is provided with: a photoelectric conversion part (60) including a semiconductor junction; and a transparent conductive layer (3) provided on a light receiving surface of the photoelectric conversion part and including crystal grains (9) of metal oxide. It is desirable that, after the transparent conductive layer with a film thickness t0 is formed, the film thickness be reduced to t by etching the transparent conductive layer. It is desirable that the film thickness t of the transparent conductive layer be 5-60 nm, and it is desirable that the average crystal grain diameter D of the metal oxide be 35 nm or more. It is desirable that D/t be 1 or more.

Inventors:
NAKANO, Kunihiro (1-1 Torikainishi 5-chome, Settsu-sh, Osaka 72, 〒5660072, JP)
KUCHIYAMA, Takashi (1-1 Torikainishi 5-chome, Settsu-sh, Osaka 72, 〒5660072, JP)
Application Number:
JP2019/011880
Publication Date:
October 03, 2019
Filing Date:
March 20, 2019
Export Citation:
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Assignee:
KANEKA CORPORATION (3-18, Nakanoshima 2-chome Kita-ku, Osaka-sh, Osaka 88, 〒5308288, JP)
International Classes:
H01L31/0224; H01L31/0747
Foreign References:
JP2009076939A2009-04-09
JP2009193674A2009-08-27
JP2011054837A2011-03-17
JP2013152827A2013-08-08
JP2012004187A2012-01-05
JP2004301962A2004-10-28
JPH03125481A1991-05-28
JPH10242494A1998-09-11
US20110177648A12011-07-21
Attorney, Agent or Firm:
SHINTAKU, Masato (IZANAGI IP LAW FIRM, Toa Bldg. 5-7, Minamihonmachi 4-chome, Chuo-ku, Osaka-sh, Osaka 54, 〒5410054, JP)
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