Metastable Changes to the Temperature Coefficients of Thin-Film Photovoltaic Modules.
Author: Deceglie, M. G.; Silverman, T. J.; Marion, B.; Kurtz, S. R.
Pages/Volumes: 4 pp.
Publication Year: 2014
Notes: Presented at the 40th IEEE Photovoltaic Specialists Conference, 8-13 June 2014, Denver, Colorado
Document Type: Conference Paper
NTIS/GPO Number: 1136576
Subject Code Description: Solar Energy - Photovoltaics
Abstract: Transient changes in the performance of thin-film modules with light exposure are a well-known and widely reported phenomenon. These changes are often the result of reversible metastabilities rather than irreversible changes. Here we consider how these metastable changes affect the temperature dependence of photovoltaic performance. We find that in CIGS modules exhibiting a metastable increase in performance with light exposure, the light exposure also induces an increase in the magnitude of the temperature coefficient. It is important to understand such changes when characterizing temperature coefficients and when analyzing the outdoor performance of newly installed modules.
Accession Number: 60443
Library Notes: NPL-1407 REV
Report Numbers: CP-5J00-61264
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