Cu(In,Ga)(Se,S) sub(2) solar cell research in Solar Frontier: Progress and current status

As the largest manufacturer of Cu(In,Ga)(Se,S) sub(2)(CIGS) thin-film photovoltaic modules with more than 1 GW/year production volume, Solar Frontier K.K. has continuously improved module performance and small-area cell efficiencies in the laboratory. Because of our low-cost and environmentally-frie...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 56; no. 4; p. 04CA02
Main Author Kato, Takuya
Format Journal Article
LanguageEnglish
Published 01.04.2017
Subjects
Buffers
CIGS
COPPER SELENIDE
Efficiency
Laboratories
Mass production
Modules
Photovoltaic cells
Solar cells
THIN FILMS
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Summary:As the largest manufacturer of Cu(In,Ga)(Se,S) sub(2)(CIGS) thin-film photovoltaic modules with more than 1 GW/year production volume, Solar Frontier K.K. has continuously improved module performance and small-area cell efficiencies in the laboratory. Because of our low-cost and environmentally-friendly process, Solar Frontier's CIGS is a promising technology for the mass production of photovoltaic modules to fill ever-increasing demand. Recently we have achieved certified efficiencies of 22.3 and 22.0% on CdS-buffered and Cd-free buffered small-area cells, respectively, as well as 18.6% on a Cd-free mini-module. In this paper, a review of our CIGS technology and recent progress on the development of the module and the small-area cell is presented.
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ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.56.04CA02