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Issue 33, 2011
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Modifying organic phenoxazine dyes for efficient dye-sensitized solar cells

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Abstract

Four organic dyes bearing the phenoxazine chromophore have been synthesized and applied in dye-sensitized solar cells (DSCs). The effect of different dye structures on the performance of the DSCs was investigated systematically with photophysical, photovoltaic as well as photoelectrochemical methods. Due to the slow recombination process between injected electrons and electrolyte, the IB3 dye with two 2,4-dibutoxyphenyl units showed the best efficiency of 7.0% under 100 mW cm−2 light illumination in the liquid state-DSCs. Moreover, the phenoxazine dyes-based solid state-DSCs were fabricated for the first time. With the IB4 dye, a higher efficiency of 3.2% has been achieved under the same light intensity.

Graphical abstract: Modifying organic phenoxazine dyes for efficient dye-sensitized solar cells

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Publication details

The article was received on 10 May 2011, accepted on 09 Jun 2011 and first published on 21 Jul 2011


Article type: Paper
DOI: 10.1039/C1JM12071A
Citation: J. Mater. Chem., 2011,21, 12462-12472
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    Modifying organic phenoxazine dyes for efficient dye-sensitized solar cells

    H. Tian, I. Bora, X. Jiang, E. Gabrielsson, K. M. Karlsson, A. Hagfeldt and L. Sun, J. Mater. Chem., 2011, 21, 12462
    DOI: 10.1039/C1JM12071A

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