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Recovery of light induced degradation in amorphous silicon solar cells and modules

Luczak, K., Lund, C.P., Jennings, P.J. and Cornish, J.C.L. (2006) Recovery of light induced degradation in amorphous silicon solar cells and modules. In: 2006 IEEE 4th World Conference on Photovoltaic Energy Conversion, WCPEC-4, 7-12 May 2006, Waikoloa, Hawaii pp. 2120-2123.

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This study concentrates on finding a possible method of annealing amorphous silicon solar modules degraded by prolonged exposure to light. The aim of annealing is the recovery of initial efficiency. This should be done on the module's work site or through simple indoor maintenance. Ideally the annealing temperature should be as low as possible and the annealing time as short as possible. The annealing process of laboratory cells and commercially available triple junction solar modules was performed at temperatures 70°C - 110°C The degree of efficiency recovery as a function of temperature and time of exposure to heating was investigated. The influence of factors affecting the rate of degradation and recovery such as short-circuiting, work under load or exposure to light, were also taken into account.

Item Type: Conference Paper
Murdoch Affiliation(s): School of Engineering Science
Publisher: IEEE
Copyright: ©2006 IEEE.
Conference Website:
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