Conductive characteristics of radical-bearing polythiophenes using a microcomb-shaped electrode

Manabu Tanaka, Kaoru Hatta, Tomohiko Edura, Ken Tsutsui, Yasuo Wada, Hiroyuki Nishide

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The electric conductivity of π-conjugated and radical-bearing polymers, i.e., polythiophenes bearing pendant galvinoxyl and phenoxyl radical groups, was measured using a microcomb-shaped electrode. The electric conductivity was found to be enhanced by the radical content in the polymer. The infrared (IR) and Raman spectroscopies suggested a structural change from an aromatic form to a quinoid one in the polythiophene backbone by the phenoxyl radical generation. The effect of the pendant galvinoxyl. radical's unpaired electron on the electric conductivity of the polythiophene was discussed by comparing the conductivity of a radical-bearing polystyrene and a polythiophene mixed with low-molecular radical molecules.

Original languageEnglish
Pages (from-to)925-931
Number of pages7
JournalPolymers for Advanced Technologies
Volume18
Issue number11
DOIs
Publication statusPublished - 2007 Nov

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Bearings (structural)
Electrodes
Polymers
Polystyrenes
Raman spectroscopy
Infrared spectroscopy
Molecules
polythiophene
Electrons

Keywords

  • π-conjugated polymer
  • Charge transport
  • Conducting polymer
  • Polythiophene
  • Radical polymer

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Conductive characteristics of radical-bearing polythiophenes using a microcomb-shaped electrode. / Tanaka, Manabu; Hatta, Kaoru; Edura, Tomohiko; Tsutsui, Ken; Wada, Yasuo; Nishide, Hiroyuki.

In: Polymers for Advanced Technologies, Vol. 18, No. 11, 11.2007, p. 925-931.

Research output: Contribution to journalArticle

Tanaka, Manabu ; Hatta, Kaoru ; Edura, Tomohiko ; Tsutsui, Ken ; Wada, Yasuo ; Nishide, Hiroyuki. / Conductive characteristics of radical-bearing polythiophenes using a microcomb-shaped electrode. In: Polymers for Advanced Technologies. 2007 ; Vol. 18, No. 11. pp. 925-931.
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