Damp heat related degradation mechanisms within CIGS solar cells

Damp heat related degradation mechanisms within CIGS solar cells

Theelen, M.
de Graaf, F.
Daume, F.
Barreau, N.
Vroon, Z.
Zeman, M.

2016

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.

Nano Technology
TFT - Thin Film Technology
TS - Technical Sciences
Materials
Industrial Innovation
CIGS
Damp heat
Humidity
Modules
Molybdenum
Solar cells
Stability
ZnO Al
Zinc oxide
Aluminum

http://resolver.tudelft.nl/uuid:b7f490f0-61f3-42f9-a1ef-1017e95f5df2

https://doi.org/10.1109/pvsc.2016.7750045

575369

Institute of Electrical and Electronics Engineers Inc.

9781509027248

0160-8371

43rd IEEE Photovoltaic Specialists Conference, PVSC 2016. 5 June 2016 through 10 June 2016, 2292-2297

7750045

conference paper