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

doi:10.1002/marc.200500276

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 journal › Article › peer-review

68 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 I_DS (source-drain current)-V_DS (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 language	English
Pages (from-to)	1214-1217
Number of pages	4
Journal	Macromolecular rapid communications
Volume	26
Issue number	15
DOIs	https://doi.org/10.1002/marc.200500276
Publication status	Published - Aug 5 2005
Externally published	Yes

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1002/marc.200500276

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

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.",

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AU - Sakai, Yoshimasa

AU - Aramaki, Shinji

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AB - 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.

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