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Spectral Influences on Measurement Uncertainty of a-Si/µc-Si Multi-Junction Solar Devices

: Seifert, H.; Hohl-Ebinger, J.; Warta, W.

Fulltext urn:nbn:de:0011-n-2210635 (116 KByte PDF)
MD5 Fingerprint: 7630bb9960df68ae406dee0eb287f032
Created on: 7.12.2012

European Commission:
26th European Photovoltaic Solar Energy Conference and Exhibition, EU PVSEC. Proceedings : 5th to 9th September 2011 at the CCH - Congress Centre and International Fair Hamburg in Germany
München: WIP-Renewable Energies, 2011
ISBN: 3-936338-27-2
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <26, 2011, Hamburg>
Conference Paper, Electronic Publication
Fraunhofer ISE ()
Solarzellen - Entwicklung und Charakterisierung; Servicebereiche; CalLab PV Cells; Kalibrierlabor für Solarzellen (CalLab PV Cells)

If multi-junction solar devices are measured at artificial sunlight, the results are strongly affected by the spectral irradiance of the sun simulator. Therefore a spectral adjustment of a multi-source solar simulator is crucial to ensure standard test conditions (STC). The calculation of the settings, in terms of spectral correction, is done with respect to the spectral response (SR) of the reference cell and all sub cells of the test device, as well as the spectral distributions of each source of the solar simulator. In this study we examine the measurement uncertainties of the SR of both sub cells of an a-Si/µc-Si tandem solar cell. The relative input data of the spectral correction procedure are varied with random walks within their uncertainty.