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Open Access research with a European policy impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

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Modelling spectral irradiation effects on single and multi-junction amorphous silicon photovoltaic devices

Betts, T.R. and Gottschalg, R. and Infield, D.G. (2002) Modelling spectral irradiation effects on single and multi-junction amorphous silicon photovoltaic devices. In: 29th IEEE Photovoltaic Specialists Conference, 2002-05-19 - 2002-05-24.

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Abstract

It has been previously reported that variations in the spectral irradiance under which an amorphous silicon device operates can have a significant effect on its electrical performance, often contributing to enhanced system yields compared to crystalline-based systems. In this work, spectral irradiance data based on models and measurements taken at the Centre for Renewable Energy Systems Technology (CREST) in the UK are presented. These are input into electrical models for amorphous silicon devices incorporating different number of junctions in order to investigate the impact of changing spectral irradiation. The results can be classified broadly as primary effects, those accounting for the available spectrally useful irradiance and secondary effects that consider the effects of mismatched currents in the stacked cells of multi-junction devices. The modeled short circuit currents correlate well with measurements and are demonstrated as a useful tool for further investigation.