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Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Seasonal performance of a-SI single- and multi-junction modules in two locations

Gottschalg, R. and del Cueto, J.A. and Betts, T.R. and Infield, D.G. (2005) Seasonal performance of a-SI single- and multi-junction modules in two locations. In: 31st IEEE Photovoltaic Specialist Conference, 2005-01-03 - 2005-01-07.

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Abstract

Module performance data collected at two sites are analyzed in order to identify the respective magnitudes of seasonal annealing and degradation in comparison to spectral effects. It is demonstrated in this paper that at one site (Loughborough, UK) the spectrum dominates and very little seasonal annealing is observed. In contrast, at the other site (Golden, US), half of the seasonal variation can be attributed to spectral changes while the other half must be attributed to thermal annealing of defects. Differences between multi-junction categories are investigated and it is shown that singlejunction devices exhibit a greater seasonal annealing than multi-junctions, while the latter tend to be more influenced by spectral effects.