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

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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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Supplementary files

Article information

10 May 2011
09 Jun 2011
First published
21 Jul 2011

J. Mater. Chem., 2011,21, 12462-12472
Article type

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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