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Proceedings Paper

New Types Of Amorphous Silicon Solar Cells
Author(s): Y. Kuwano; S. Nakano; T. Fukatsu; M. Ohnishi; H. Nishiwaki; S. Tsuda
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Paper 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.

Paper Details

Date Published: 8 September 1983
PDF: 8 pages
Proc. SPIE 0407, Photovoltaics for Solar Energy Applications II, (8 September 1983); doi: 10.1117/12.935681
Show Author Affiliations
Y. Kuwano, SANYO Electric Co., Ltd. (Japan)
S. Nakano, SANYO Electric Co., Ltd. (Japan)
T. Fukatsu, SANYO Electric Co., Ltd. (Japan)
M. Ohnishi, SANYO Electric Co., Ltd. (Japan)
H. Nishiwaki, SANYO Electric Co., Ltd. (Japan)
S. Tsuda, SANYO Electric Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 0407:
Photovoltaics for Solar Energy Applications II
David Adler, Editor(s)

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