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ECN publication
Long-term stability and efficiency of dye-sensitized solar cells
Kroon, J.M.; Hinsch, A.; Kern, R.; Sastrawan, R.; Meyer, A.; Uhlendorf, I.
Published by: Publication date:
ECN Solar Energy 1-10-2001
ECN report number: Document type:
ECN-RX--01-020 Conference Paper
Number of pages: Full text:
4 Download PDF  

Presented at: 17th European Photovoltaic Solar Energy Conference, Munich, Germany, 22-26 oktober 2001.

For the first time, a certified AM1.5 efficiency of 8.2% has been reached for nano-crystalline dye-sensitized solar cells (nc-DSC) on areas larger 1 cm 2 ; i.e. 2.5 cm 2 . It has been further proven, that 2-valent salts like MgI2 and CaI2 as additives to the electrolyte have a strong stabilising effect during UV-illumination. Tests under continuos light soaking for several thousand hours demonstrate the ability of nc-DSCs to operate for at least 5 ? 10 years under outdoor illumination conditions without major degradations. Continuos and periodic thermal tests according to IEC 1215 norms are promising but with 30% to 40% loss in efficiency still critical.

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