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Preparation of conducting polyanilines doped with Keggin-type polyoxometalates and their application as counter electrode in dye-sensitized solar cells

  • ICAM 2009
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Abstract

Conducting polyanilines doped with two Keggin-type polyoxometalates (POMs) were synthesized by chemical oxidation of aniline. Both conducting polymers provided electrical conductivity values up to 0.1 S cm−1, as measured by the standard four-probe technique. Structural and morphological characterizations for these materials were achieved by FTIR spectra, X-ray diffraction, scanning electron microscopy (SEM), and thermogravimetric analysis. These conducting polyanilines doped with Keggin-type polyoxometalates (PANI–POMs) were also used to prepare a new type of counter electrode for application in dye-sensitized solar cells (DSCs). Promising results were achieved from DSCs based on PANI–POMs as the materials for the counter electrode, which provides evidence for the dopant role in enhancing the electrical conductivity of PANI.

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Acknowledgements

The authors acknowledge FAPESP (fellowships 08/53059-4), FAPERJ, and CNPq for the financial support, and Prof. Carol H. Collins for English revision.

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Authors and Affiliations

  1. Institute of Chemistry, University of Campinas—UNICAMP, P.O. Box 6154, 13083-970, Campinas, SP, Brazil

    Luiz C. P. Almeida, Agnaldo D. Gonçalves, João E. Benedetti, Paulo C. M. L. Miranda & Ana F. Nogueira

  2. Laboratório de Ciências Químicas/CCT, Universidade Estadual do Norte Fluminense—UENF, 28013-612, Campos dos Goytacazes, RJ, Brazil

    Luís C. Passoni

Authors
  1. Luiz C. P. Almeida
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  2. Agnaldo D. Gonçalves
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  3. João E. Benedetti
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  4. Paulo C. M. L. Miranda
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  5. Luís C. Passoni
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  6. Ana F. Nogueira
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Correspondence to Luís C. Passoni or Ana F. Nogueira.

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Almeida, L.C.P., Gonçalves, A.D., Benedetti, J.E. et al. Preparation of conducting polyanilines doped with Keggin-type polyoxometalates and their application as counter electrode in dye-sensitized solar cells. J Mater Sci 45, 5054–5060 (2010). https://doi.org/10.1007/s10853-010-4456-x

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  • DOI: https://doi.org/10.1007/s10853-010-4456-x

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