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ECN publication
Flexible dye-sensitized nanocrystalline TiO2 solar cells
Published by: Publication date:
ECN Solar Energy 1-5-2000
ECN report number: Document type:
ECN-RX--00-020 Conference Paper
Number of pages: Full text:
5 Download PDF  

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

The Dye-sensitized nanocrystaline TiO2 solar cell (nc-DSC) developed byGraetzel has the potential to reach low costs in future outdoor power applications. In addition, due to its expected ease of production and possibilities to adjust its appearance, the potential for application is very broad. When plastic foil is used as a substrate for the nc-DSC the production and application possibilities are even bigger. Polymer foils are easier to handle in processing steps such as cutting of larger entities into smaller individual modules. Moreover the processing of foil into complete flexible solar cells could be realized by means of a continuous roll to roll process. This implies that for the flexible nc-DSC a higher throughput in production could be realized. Also special applications requiring a certain flexibility of the solar cell, such as smart cards, come into play. In this paper the differences in cell performance and -stability between glass based nc-DSCs and polymer foil based nc-DSCs are studied. The ITO coating on the polymer foil appears to be a critical factor with respect to the photoelectrode stability. TiO2 sintered at low temperatures (150 deg C) does not influence the cell stability in a negative way. 5 refs.

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