Robust measurement of thin-film photovoltaic modules exhibiting light-induced transients

Michael G. Deceglie; Timothy J. Silverman; Bill Marion; Sarah R. Kurtz

doi:10.1117/12.2188827

5 September 2015 Robust measurement of thin-film photovoltaic modules exhibiting light-induced transients

Michael G. Deceglie, Timothy J. Silverman, Bill Marion, Sarah R. Kurtz

Proceedings Volume 9561, Thin Films for Solar and Energy Technology VII; 956108 (2015) https://doi.org/10.1117/12.2188827
Event: SPIE Optics + Photonics for Sustainable Energy, 2015, San Diego, California, United States

Abstract

Light-induced changes to the current-voltage characteristic of thin-film photovoltaic modules (i.e. light-soaking effects) frustrate the repeatable measurement of their operating power. We describe best practices for mitigating, or stabilizing, light-soaking effects for both CdTe and CIGS modules to enable robust, repeatable, and relevant power measurements. We motivate the practices by detailing how modules react to changes in different stabilization methods. We also describe and demonstrate a method for validating alternative stabilization procedures, such as those relying on forward bias in the dark. Reliable measurements of module power are critical for qualification testing, reliability testing, and power rating.

Citation Download Citation

Michael G. Deceglie, Timothy J. Silverman, Bill Marion, and Sarah R. Kurtz "Robust measurement of thin-film photovoltaic modules exhibiting light-induced transients", Proc. SPIE 9561, Thin Films for Solar and Energy Technology VII, 956108 (5 September 2015); https://doi.org/10.1117/12.2188827

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