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Optimization of High Efficiency Amorphous Silicon Alloy based Triple-Junction Modules

Published online by Cambridge University Press:  15 February 2011

A. Banerjee
Affiliation:
United Solar Systems Corp., 1100 W. Maple Road, Troy, Michigan 48084, U.S.A.
J. Yang
Affiliation:
United Solar Systems Corp., 1100 W. Maple Road, Troy, Michigan 48084, U.S.A.
S. Guha
Affiliation:
United Solar Systems Corp., 1100 W. Maple Road, Troy, Michigan 48084, U.S.A.
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Abstract

A systematic approach has been used to scale up high efficiency 0.25cm2 active-area amorphous Si alloy based triple-junction devices to high-efficiency encapsulated modules of aperture area ~920cm2. In order to analyze the losses involved in the scale-up, intermediate aperture area, 40cm2 and 450cm2, modules have also been fabricated. The best stable active-area efficiency obtained on the small-area cells is 12.9%. The best initial efficiency of a ~920cm2 aperture area encapsulated module is 12.1%. National Renewable Energy Laboratory (NREL) has independently light soaked three of the ~920cm2 modules. They have measured a stable efficiency of 10.5% which represents a new world record. This paper presents various aspects of the large-area module work.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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References

1. Guha, S., Yang, J., Banerjee, A., Glatfelter, T., Hoffman, K., Ovshinsky, S. R., Izu, M., Ovshinsky, H.C., and Deng, X., in Amorphous Silicon Technology, edited by Schiff, E.A., Hack, M., Madan, A., Powell, M., and Matsuda, A. (Mater. Res. Soc. Proc. 336, San Francisco, CA 1994) pp. 645655.Google Scholar
2. Yang, J., Banerjee, A., Glatfelter, T., Hoffman, K., Xu, X., and Guha, S., 1st World Conf. on Photovoltaic Energy Conversion, Waikoloa, Hawaii (1994) pp. 380385.Google Scholar
3. Yang, J., Banerjee, A., and Guha, S., Appl. Phys. Lett. 70, 2975 (1997).Google Scholar
4. Yang, J., Banerjee, A., and Guha, S., in Amorphous Silicon Technology, edited by Wagner, S., Hack, M., Schiff, E.A., Schropp, R., and Shimizu, I. (Mater. Res. Soc. Proc. 467, San Francisco, CA 1997) pp. 693698.Google Scholar