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Issue 10, 2009
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Long-term stability of organic–dye-sensitized solar cells based on an alkyl-functionalized carbazole dye

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Abstract

We investigated the long-term stability of performance for dye-sensitized solar cells (DSSCs) based on an alkyl-functionalized carbazole dye (MK-2) and used in conjunction with ionic liquid-based electrolytes. We observed good long-term stability of the performance of the DSSCs during 60 days under visible-light irradiation at ca. 50 °C. The performance of the DSSC decreased gradually under white-light irradiation including UV light or at 80 °C under dark conditions. However, no decomposition or detachment of the dye molecule from the TiO2electrode was observed after these measurements. These results indicate that the MK-2dye molecule in the cell was stable even under white-light irradiation and at 80 °C under dark conditions.

Graphical abstract: Long-term stability of organic–dye-sensitized solar cells based on an alkyl-functionalized carbazole dye

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Publication details

The article was received on 14 Apr 2009, accepted on 14 Jul 2009 and first published on 23 Jul 2009


Article type: Paper
DOI: 10.1039/B907486D
Citation: Energy Environ. Sci., 2009,2, 1109-1114
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    Long-term stability of organic–dye-sensitized solar cells based on an alkyl-functionalized carbazole dye

    K. Hara, Z. Wang, Y. Cui, A. Furube and N. Koumura, Energy Environ. Sci., 2009, 2, 1109
    DOI: 10.1039/B907486D

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