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Effect of the anion on the level and aging of the conducting state of electropolymerized 3-methylthiophene thin films

Authors

  • Catherine Fuvre,

    1. Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces, UMR CNRS-INPG 5631. ENSEEG BP 75, F-38402 St Martin d'Hères (France)
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  • Dr. Louis Abello,

    1. Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces, UMR CNRS-INPG 5631. ENSEEG BP 75, F-38402 St Martin d'Hères (France)
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  • Dr. Didier Delubouglise

    Corresponding author
    1. Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces, UMR CNRS-INPG 5631. ENSEEG BP 75, F-38402 St Martin d'Hères (France)
    • Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces, UMR CNRS-INPG 5631. ENSEEG BP 75, F-38402 St Martin d'Hères (France)
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Abstract

The unique character of the triffimide anion has been revealed in a study of how the doping anion affects the properties of conducting polymer thin films using poly(3-methylthiophene) doped with triflimide ((CF3SO2)2N), perchlorate (CIO). Variations in film morphology, conductivity, and the time dependence of the conductivity are described. Particularly noticeable are the differences in surface de-doping, which lasts of up the one month in the trifflimide-doped films.

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