Ambipolar field-effect transistor (FET) and redox characteristics of a π-conjugated thiophene/ 1,3,4-thiadiazole CT-type copolymer

Takakazu Yamamoto, Takuma Yasuda, Yoshimasa Sakai, Shinji Aramaki

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

A π-conjugated charge transfer-type copolymer consisting of an electron-donating thiophene and an electron-accepting 1,3,4-thiadiazole, P(ThdzTh), underwent facile electrochemical p- and n-doping, as revealed by cyclic voltammetry. The copolymer gave a new ambipolar field-effect transistor (FET), which showed typical IDS (source-drain current)-VDS (source-drain voltage) curves in both a p-type working mode and an n-type working mode. In the n-type working mode, the polymer showed a carrier mobility of about 5 × 10-3 cm2 · V-1 · s-1 and an on/off ratio of about 3 × 104.

Original languageEnglish
Pages (from-to)1214-1217
Number of pages4
JournalMacromolecular Rapid Communications
Volume26
Issue number15
DOIs
Publication statusPublished - Aug 5 2005
Externally publishedYes

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Thiophenes
Thiophene
Field effect transistors
Copolymers
Electrons
Drain current
Carrier mobility
Cyclic voltammetry
Charge transfer
Polymers
Doping (additives)
Electric potential
Oxidation-Reduction
1,3,4-thiadiazole

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Ambipolar field-effect transistor (FET) and redox characteristics of a π-conjugated thiophene/ 1,3,4-thiadiazole CT-type copolymer. / Yamamoto, Takakazu; Yasuda, Takuma; Sakai, Yoshimasa; Aramaki, Shinji.

In: Macromolecular Rapid Communications, Vol. 26, No. 15, 05.08.2005, p. 1214-1217.

Research output: Contribution to journalArticle

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