Damp heat related degradation mechanisms within CIGS solar cells
conference paper
Degradation rates and mechanisms for molybdenum back contacts and ZnO:Al front contacts exposed to damp heat were obtained from literature and experiments. It was found that molybdenum back contacts with a higher density and covered by a MoSe2 film are more stable than their low density, bare counterparts. For ZnO:Al front contacts, various material changes, including thickness, deposition temperatures and doping concentration increase as well as post-deposition treatments can lead to a more stable material. Moreover, the degradation rate of encapsulated and non-encapsulated CIGS solar cells and modules exposed to damp heat were determined It was observed that in general, exposure to damp heat led to a reduction in efficiency, mostly caused by a reduction in Voc and FF. However, it was found that very large differences exist
between samples.
between samples.
TNO Identifier
575369
DOI
https://dx.doi.org/10.1109/PVSC.2016.7750045
ISSN
01608371
ISBN
9781509027248
Publisher
Institute of Electrical and Electronics Engineers Inc.
Article nr.
7750045
Source title
43rd IEEE Photovoltaic Specialists Conference, PVSC 2016. 5 June 2016 through 10 June 2016
Pages
2292-2297
Files
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