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 conferencePaper

Abstract

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
Pages2879-2880
Number of pages2
Publication statusPublished - 2005 Dec 1
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: 2005 Sep 202005 Sep 22

Other

Other54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period05/9/2005/9/22

Keywords

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

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Hiraishi, K., Oikawa, H., Kasai, H., Masuhara, A., Nakanishi, H., Shinohara, Y., & Okada, S. (2005). Structure effect to thermoelectric properties of polythiophene synthesized by electrolytic polymerization. 2879-2880. Paper presented at 54th SPSJ Symposium on Macromolecules, Yamagata, Japan.