Structure effect to thermoelectric properties of polythiophene synthesized by electrolytic polymerization

Kentaro Hiraishi, Hidetoshi Oikawa, Hitoshi Kasai, Akito Masuhara, Hachiro Nakanishi, Yoshikazu Shinohara, Shuji Okada

    Research output: Contribution to conferencePaperpeer-review


    Polythiophene films were synthesized by electrolytic polymerization using nitrobenzene as a solvent and tetra-π-butylammonium peichrorate as electrolyte. We have evaluated thermoelectric properties of Seebeck coefficient, electrical conductivity, hall mobility and career concentration of the films in the in-plane direction The films showed tendency that Seebeck coefficient decreased with an increasing electrical conductivity. The Seebeck coefficient of potythiophene was larger than other conductive polymers. Electrical conductivity was strongly dependent on hall mobility. High conductivity was due to smooth surfaces, high compactness, and high crystallinity of monoclinic structure. In addition, the conductive mechanism was analyzed by measuring the temperature dependency of the electrical conductivity, and was evaluated the relation to the structure.

    Original languageEnglish
    Number of pages2
    Publication statusPublished - 2005 Dec 1
    Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
    Duration: 2005 Sep 202005 Sep 22


    Other54th SPSJ Symposium on Macromolecules


    • Electrical conductivity
    • Electrolytic polymerization
    • Polythiophene
    • Seebeck coefficient
    • Thermoelectric material

    ASJC Scopus subject areas

    • Engineering(all)


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