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ECN publicatie:
Titel:
Long-term stability of dye sensitized solar cells for large area power applications (LOTS-DSC)
 
Auteur(s):
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.
 
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 1-5-2000
 
ECN publicatienummer: Publicatie type:
ECN-RX--00-015 Conferentiebijdrage
 
Aantal pagina's: Volledige tekst:
7 Download PDF  (233kB)

Gepresenteerd op: 16th European Photovoltaic Solar Energy Conference and Exhibition, Glasgow, Scotland, 1-5 mei 2000.

Samenvatting:
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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