Title: Spectral Response Measurements of Multi-junction PV Modules at the European Solar Test Installation Laboratories and their Usage in Clear Day Outdoor Characterisation
Citation: 23rd European Photovoltaic Solar Energy Conference and Exhibition, Valencia 2008 p. 2908-2912
Publisher: WIP-Renewable Energies
Publication Year: 2008
JRC N°: JRC44187
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC44187
Type: Articles in periodicals and books
Abstract: Spectral response (SR) measurements on monolithic, multi-junction devices require a careful usage of coloured bias light, due to the series connection of the component sub-cells in the device. At the European Solar Test Installation laboratories, measurements of SR of single-junction solar cells and modules are currently and routinely performed, following international standard procedures. More recently the set-up has been upgraded in order to allow measurements of the SR of multi-junction photovoltaic cells and up to 30×30 cm2 mini-modules have been tested. In this work we present our test procedure for measurements of the SR of a two-terminal a-Si/a-Si thin-film larger-size (up to 1 m2) module. The same device has been characterised outdoor on a tracking system under natural sunlight on a clear day at different air masses: spectral mismatch corrections of indoor measurements on our Large Area Pulsed Solar Simulator and comparison between short-circuit current values and measured data are shown.
JRC Directorate:Energy, Transport and Climate

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