An investigation of amorphous silicon solar cells with a gettering layer
Luczak, K., de Mont-Marin, G.D., Lund, C.P., Jennings, P.J. and Cornish, J.C.L. (2003) An investigation of amorphous silicon solar cells with a gettering layer. In: 3rd World Conference on Photovoltaic Energy Conversion 2003, 11 - 18 May 2003, Osaka, Japan pp. 1856-1858.
Hydrogenated amorphous silicon solar cells (a-Si:H) with a modified intrinsic layer (in this case a so called "gettering layer") show an interesting pattern of photo-degradation during long exposure to simulated sunlight. This work presents some initial results from a careful examination of the behaviour of minority carrier lifetimes and spectral responses of standard, normal cells and cells with a modified intrinsic layer at all stages throughout the photo-degradation. The observed changes in the spectral responses and minority carrier lifetimes during degradation are remarkably different in the two types of solar cells under investigation. Cells with a modified intrinsic layer seem to be more stable during all stages of prolonged photo-degradation. We suspect that processes involving the formation of light induced defects and their migration inside the intrinsic layer can at least partially explain the differences in changes observed in these samples.
|Publication Type:||Conference Paper|
|Murdoch Affiliation:||School of Engineering Science|
|Notes:||Appears in: Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on (Volume:2 )|
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