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Performance of a-Si-H Solar Cells at Higher Growth Rates

Published online by Cambridge University Press:  15 February 2011

G. Ganguly
Affiliation:
Solarex, A Business Unit of BP/Amoco Solar, 3601 LaGrange Parkway, Toano, VA 23168
G. Lin
Affiliation:
Solarex, A Business Unit of BP/Amoco Solar, 3601 LaGrange Parkway, Toano, VA 23168
L.F. Chen
Affiliation:
Solarex, A Business Unit of BP/Amoco Solar, 3601 LaGrange Parkway, Toano, VA 23168
M. He
Affiliation:
Solarex, A Business Unit of BP/Amoco Solar, 3601 LaGrange Parkway, Toano, VA 23168
G. Wood
Affiliation:
Solarex, A Business Unit of BP/Amoco Solar, 3601 LaGrange Parkway, Toano, VA 23168
D. Carlson
Affiliation:
Solarex, A Business Unit of BP/Amoco Solar, 3601 LaGrange Parkway, Toano, VA 23168
R. Arya
Affiliation:
Solarex, A Business Unit of BP/Amoco Solar, 3601 LaGrange Parkway, Toano, VA 23168
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Abstract

We have studied the effects of external growth parameters during the deposition of the i-layers of a-Si p-i-n solar cells using dc plasma decomposition of silane-hydrogen mixtures at growth rates of up to 3A/s. The loss of initial performance with increasing growth rate is mainly due to a loss of short-circuit current. The relative degradation of efficiency upon extended light soaking also increases with growth rate, and is mainly due to a decrease in the fill factor. Systematic comparisons of the performance and its degradation with changes in growth conditions reveal that these two components of the total degradation have distinct origins.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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