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
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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