Print Email Facebook Twitter Damp heat related degradation mechanisms within CIGS solar cells Title Damp heat related degradation mechanisms within CIGS solar cells Author Theelen, M.J. de Graaf, F. Daume, F. Barreau, N. Vroon, Z.A.E.P. Zeman, M. Publication year 2018 Abstract 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. © 2017 IEEE. Subject CIGSDamp heatHumidityModulesSolar cellsStabilityAluminumAtmospheric humidityConvergence of numerical methodsDegradationDepositionII-VI semiconductorsMolybdenumMolybdenum compoundsSelenium compoundsSemiconductor dopingZinc oxideCIGS solar cellsDegradation mechanismDeposition temperaturesDoping concentrationModulesPost deposition treatment To reference this document use: http://resolver.tudelft.nl/uuid:2f4b9b4c-2073-489a-9002-29020b28d85f TNO identifier 810211 Publisher Institute of Electrical and Electronics Engineers Inc. ISBN 9781509056057 Source 44th IEEE Photovoltaic Specialist Conference, PVSC 2017. 25 June 2017 through 30 June 2017, 1-6 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.