New Types Of Amorphous Silicon Solar Cells

Y. Kuwano; S. Nakano; T. Fukatsu; M. Ohnishi; H. Nishiwaki; S. Tsuda

doi:10.1117/12.935681

8 September 1983 New Types Of Amorphous Silicon Solar Cells

Y. Kuwano, S. Nakano, T. Fukatsu, M. Ohnishi, H. Nishiwaki, S. Tsuda

Proceedings Volume 0407, Photovoltaics for Solar Energy Applications II; (1983) https://doi.org/10.1117/12.935681
Event: 1983 Technical Symposium East, 1983, Arlington, United States

Abstract

We have developed a new type of amorphous silicon (a-Si) solar cell, called the integrat-ed type a-Si solar cell (cascade type a-Si solar cell), and a new fabrication method for high conversion efficiency a-Si solar cells, called the consecutive, separated reaction chamber method. With this method, we were able to improve the conversion efficiency of Glass/SnO,/p(SiC)-i-n/Metal to a level of 9.28% with a size of 2 mm x 2 mm, to a level of 7.58% with a size of 10 cm x 10 cm, and to level of 6.14% with a size of 20 cm x 20 cm. We have also proposed a new type of a-Si solar cell, called the "multi-gap amorphous solar cell (stacked cell)" which consists of a-Si:N:H, a-Si:H, and a-Si:Sn:H to improve conversion efficiency. The theoretical limit efficiency of the three band-gap amorphous solar cell is estimated to be 24%. The calculation for the optimization of the integrated type multi-gap solar cell was done. Integrated type a-Si solar cells have been applied both to consumer electronics and power generating systems.

Citation Download Citation

Y. Kuwano, S. Nakano, T. Fukatsu, M. Ohnishi, H. Nishiwaki, and S. Tsuda "New Types Of Amorphous Silicon Solar Cells", Proc. SPIE 0407, Photovoltaics for Solar Energy Applications II, (8 September 1983); https://doi.org/10.1117/12.935681

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