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Issue 12, 2011
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Modification of nonlinear optical dyes for dye sensitized solar cells: a new use for a familiar acceptor

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Abstract

The chemistry of electron deficient π-acceptors offers unique challenges in the rational design and synthesis of organic dyes for use in solar cells. We have synthesized 2-cyano-2-(3-cyano-4-((E)-4-(dibutylamino)styryl)-5,5-dimethylfuran-2(5H)-ylidene)ethanoic acid (2), a dye containing an carboxylated version of the strongly electron withdrawing TCF group by way of stepwise synthesis and isolation of 2,5-dihydro-2-imino-4,5,5-trimethylfuran-3-carbonitrile (5), previously only available as an intermediate available via microwave chemistry. We use this dye to sensitize nanocrystalline TiO2 in order to examine its efficacy in dye-sensitized solar cells. Crystal structures of an intermediate and the final dye are presented and the isomerization about the terminal alkene is discussed in addition to preliminary solar cell data.

Graphical abstract: Modification of nonlinear optical dyes for dye sensitized solar cells: a new use for a familiar acceptor

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Publication details

The article was received on 03 Nov 2010, accepted on 21 Dec 2010 and first published on 09 Feb 2011


Article type: Paper
DOI: 10.1039/C0JM03774E
Citation: J. Mater. Chem., 2011,21, 4242-4250
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    Modification of nonlinear optical dyes for dye sensitized solar cells: a new use for a familiar acceptor

    D. G. Patel, N. M. Bastianon, P. Tongwa, J. M. Leger, T. V. Timofeeva and G. P. Bartholomew, J. Mater. Chem., 2011, 21, 4242
    DOI: 10.1039/C0JM03774E

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