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Double-Stacked a-Si/a-Si and a-Sic/a-Si Tandem Solar Cells with High Efficiency and High Reliability

Published online by Cambridge University Press:  25 February 2011

Hiroshi Sakai ,
Takashi Yoshida ,
Shinji Fujikake  and
Yukimi Ichikawa
Hiroshi Sakai
Affiliation:
Fuji Electric Corporate Research and Development, Ltd. 2-2-1 Nagasaka, Yokosuka, Kanagawa 240-01Japan
Takashi Yoshida
Affiliation:
Fuji Electric Corporate Research and Development, Ltd. 2-2-1 Nagasaka, Yokosuka, Kanagawa 240-01Japan
Shinji Fujikake
Affiliation:
Fuji Electric Corporate Research and Development, Ltd. 2-2-1 Nagasaka, Yokosuka, Kanagawa 240-01Japan
Yukimi Ichikawa
Affiliation:
Fuji Electric Corporate Research and Development, Ltd. 2-2-1 Nagasaka, Yokosuka, Kanagawa 240-01Japan
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Abstract

Amorphous silicon (a-Si) based solar cells with a double-stacked tandem structure have been studied with a view to reduce light-induced degradation in photovoltaic performance without lowering the initial conversion efficiency. We have attained a conversion efficiency of 11.3% in a 1cm2 a-Si/a-Si tandem cell and 10.8% in a 1cm2 a-SiC/a-Si tandem cell. Using an a-Si/a-Si tandem cell with an initial efficiency of more than 10%, we have carried out a light soaking test, and found that the degradation in conversion efficiency was about 10% under open-circuit condition after 600 hours exposure.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 149: Symposium E – Amorphous Silicon Technology - 1989 , 1989 , 477
Copyright
Copyright © Materials Research Society 1989

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References

REFERENCES

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