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Title:
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Long-term stability of dye sensitized solar cells for large area power applications (LOTS-DSC)
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Author(s):
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Hinsch, A.; Kroon, J.M.; Späth, M.; Roosmalen, J.A.M. van; Bakker, N.J.; Sommeling, P.M.; Burg, N.P.G. van der; Kinderman, R.; Kern, R.; Herber, J.; Schill, C.; Schubert, M.; Meyer, A.; Meyer, T.; Uhlendorf, I.; Holzbock, J.; Niepmann, R.
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Published by:
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Publication date:
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ECN
Solar Energy
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1-5-2000
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ECN report number:
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Document type:
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ECN-RX--00-015
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Conference Paper
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Number of pages:
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Full text:
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7
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Download PDF
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Presented at: 16th European Photovoltaic Solar Energy Conference and Exhibition, Glasgow, Scotland, 1-5 mei 2000.
Abstract:
Accelerated ageing tests on large numbers of dye sensitised solar cellsshow, that to first order a separation between the effects of the stresses
visible light soaking, UV-illumination and thermal treatment on long-term
stability can be made. The corresponding mechanisms are of electrochemical,
photochemical and pure chemical nature respectively. It was found that
visible light soaking alone is not a dominant stress factor. A dramatic
improvement in UV-stability has been reached by using MgI2
as additive to the electrolyte. Thermal stress appears to be one of
the most critical factors determining the long-term stability of nc-DSC
and is strongly related to the chemical composition of electrolyte solvents
and additives. Encouraging stability results are now obtained for cells
based on pure nitrile based solvents. (1) A minor decrease of performance
of initially 5% solar efficient cells has been found after 2000 h at
60 deg C storage i
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