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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 ,
J. Yang  and
S. Guha
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
Information
MRS Online Proceedings Library (OPL) , Volume 557: Symposium A – Amorphous and Heterogeneous Silicon Thin Films—Fundamentals to Devices—1999 , 1999 , 743
Copyright
Copyright © Materials Research Society 1999

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References

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