In situ monitoring of vapor-phase polymerization and characterization of poly(3,4-ethylenedioxythiophene) thin films

Yasuko Koshiba, Mana Hirai, Shohei Horike, Masahiro Morimoto, Masahiro Misaki, Tastuya Fukushima, Kenji Ishida*

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

3 被引用数 (Scopus)

抄録

Thin films of poly(3,4-ethylenedioxythiophene) (PEDOT) were fabricated via the vapor-phase polymerization (VPP) of the monomer 3,4-ethylenedioxythiophene (EDOT) with FeCl3·6H2O as the oxidant. The doping level and electrical properties of the VPP-PEDOT films were investigated by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and electrical conductivity measurements. The VPP of EDOT was observed by in situ ultraviolet–visible (UV–Vis) absorption spectroscopy. The results showed that highly doped PEDOT films were formed in the initial stages of VPP, and the doping level increased as the reaction proceeded. The doping level eventually decreased because of the limited amount of the oxidant. Therefore, it was concluded that the doping level of VPP-PEDOT thin films could be changed depending on the initial amount and supply of the oxidant. The thermoelectric properties of the as-synthesized VPP-PEDOT films were also studied, with the aim of applying them as an energy harvester and/or a temperature sensor.

本文言語英語
ページ(範囲)2873-2879
ページ数7
ジャーナルSensors and Materials
30
12
DOI
出版ステータス出版済み - 2018

ASJC Scopus 主題領域

  • 器械工学
  • 材料科学一般

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