Thermoelectric properties of I2-doped poly(3-butyl)thiophene

Yoshihiro Setoguchi, Keizo Okada, Hironobu Hori, Hirosato Monobe, Toshiyuki Mihara, Ryoji Funahashi, Yo Shimizu

Research output: Contribution to conferencePaperpeer-review

3 Citations (Scopus)


I2-doped regioregular poly(3-butyl)thiophene was studied in terms of thermoelectric materials. The pellet made of the powder sample and film prepared by cast technique were provided to the measurements of Seebeck coefficient, electric and thermal conductivity to give the temperature dependence. The Seebeck coefficient of the pellet shows the increase on heating up to 130 °C and attains to 200 μV/K from 110 μV/K. The electric conductivity was evaluated to be 15 S/m at 100 °C as a maximum. The thermal conductivity was measured to show the increase on heating from 0.12-0.2 W/mK, comparable to those of the ordinary polymer materials. The film prepared by casting from solution gave 170 μV/K of the Seebeck coefficient and 200 S/m of the electric conductivity at 50 °C. Considering the larger electric conductivity up to 105 S/m for conducting polymers, it is expected to find novel thermoelectric materials in conducting polymers.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: Sept 20 2005Sept 22 2005


Other54th SPSJ Symposium on Macromolecules

All Science Journal Classification (ASJC) codes

  • General Engineering


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