The influence of defects on the cellular open circuit voltage in CuInGaSe2 thin film solar modules-An illuminated lock-in thermography study

Adams J, Vetter A, Hoga F, Fecher F, Theisen JP, Brabec C, Buerhop-Lutz C (2014)

Publication Language: English

Publication Status: Published

Publication Type: Journal article

Publication year: 2014

Journal

Solar Energy Materials and Solar Cells Elsevier

Publisher: Elsevier

Book Volume: 123

Pages Range: 159-165

DOI: 10.1016/j.solmat.2014.01.014

Abstract

CuInGaSe2 (CIGS) thin film solar modules, despite their high efficiency, may contain three different kinds of macroscopic defects referred to as bulk defects, interface defects and interconnect defects. This occurs due to film's sensitivity to inhomogeneities during the manufacturing process. The result is a decrease of electrical power output from a cell or module. In this paper, we present the influence of macroscopic defects on the electrical behavior of CIGS thin film solar cells. To accomplish this, we investigated the relation between the IR-signal emitted of a defect in a cell (measured using illuminated lock-in thermography ILIT) and the respective open circuit cell voltage (V-oc,V-cell) under low light conditions ( < 100 W/m(2)). Furthermore, we developed a modified masking method of measuring V-oc,V-cell of a single cell within a thin film solar module. (C) 2014 Elsevier B.V. All rights reserved.

Authors with CRIS profile

Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Bayerisches Zentrum für Angewandte Energieforschung e.V. (ZAE Bayern) DE Germany (DE) Manz CIGS Technology GmbH DE Germany (DE)

How to cite

APA:

Adams, J., Vetter, A., Hoga, F., Fecher, F., Theisen, J.P., Brabec, C., & Buerhop-Lutz, C. (2014). The influence of defects on the cellular open circuit voltage in CuInGaSe2 thin film solar modules-An illuminated lock-in thermography study. Solar Energy Materials and Solar Cells, 123, 159-165. https://dx.doi.org/10.1016/j.solmat.2014.01.014

MLA:

Adams, J., et al. "The influence of defects on the cellular open circuit voltage in CuInGaSe2 thin film solar modules-An illuminated lock-in thermography study." Solar Energy Materials and Solar Cells 123 (2014): 159-165.

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