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 (JP)
KUCHIYAMA TAKASHI (JP)
KUCHIYAMA TAKASHI (JP)
Application Number:
PCT/JP2019/011880
Publication Date:
October 03, 2019
Filing Date:
March 20, 2019
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
H01L31/0224; H01L31/0747
Foreign References:
| JP2009076939A | 2009-04-09 | |||
| JP2009193674A | 2009-08-27 | |||
| JP2011054837A | 2011-03-17 | |||
| JP2013152827A | 2013-08-08 | |||
| JP2012004187A | 2012-01-05 | |||
| JP2004301962A | 2004-10-28 | |||
| JPH03125481A | 1991-05-28 | |||
| JPH10242494A | 1998-09-11 | |||
| US20110177648A1 | 2011-07-21 |
Attorney, Agent or Firm:
SHINTAKU, Masato (JP)
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