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Identification of degradation mechanisms in field-tested CdTe modules

Carlsson, T.; Brinkman, A.W.

Authors

T. Carlsson

A.W. Brinkman



Abstract

Field tests and accelerated ageing tests were conducted on CdTe photovoltaic modules with Sb-based back contacts. Significant performance degradation was observed during one and a half years of outdoor exposure. Small-area samples were prepared from field tested modules and characterized with current-voltage, capacitance-voltage and resistance measurements. Results show that module performance degradation in the field can be partly attributed to a decrease in doping concentration close to the CdS/CdTe junction and an increased resistance in the transparent front contact. A comparison with results in the literature indicates that bias voltage may play a role in the degradation process.

Citation

Carlsson, T., & Brinkman, A. (2006). Identification of degradation mechanisms in field-tested CdTe modules. Progress in Photovoltaics, 14(3), 213-224. https://doi.org/10.1002/pip.663

Journal Article Type Article
Publication Date 2006-09
Deposit Date Feb 14, 2007
Journal Progress in Photovoltaics
Print ISSN 1062-7995
Electronic ISSN 1099-159X
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 14
Issue 3
Pages 213-224
DOI https://doi.org/10.1002/pip.663
Keywords Photovoltaics, CdTe, Field test, Accelerated ageing, Degradation.