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Issue 33, 2013
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A solution-processable dicyano-substituted quinoidal oligothiophene for air-stable ambipolar organic field-effect transistors

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Abstract

A novel solution-processable dicyano-substituted quinoidal oligothiophene molecule CDT-2T(CN)4 was synthesized and characterized. CDT-2T(CN)4 displayed high thermal stability and broad thin film absorption in the near IR region. Electrochemical results showed that CDT-2T(CN)4 exhibited reversible oxidation and reduction peaks with the LUMO energy level at −4.2 eV and the HOMO energy level at −5.3 eV. The solution processed thin film transistors of CDT-2T(CN)4 displayed electron-dominant ambipolar transport behavior under ambient conditions. The optimal saturation hole and electron mobilities were 0.003 and 0.023 cm2 V−1 s−1, respectively, one of the highest values for solution processed quinoidal based ambipolar organic semiconductors with good ambient stability.

Graphical abstract: A solution-processable dicyano-substituted quinoidal oligothiophene for air-stable ambipolar organic field-effect transistors

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Publication details

The article was received on 08 May 2013, accepted on 21 Jun 2013 and first published on 21 Jun 2013


Article type: Paper
DOI: 10.1039/C3TC30860J
Citation: J. Mater. Chem. C, 2013,1, 5128-5132
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    A solution-processable dicyano-substituted quinoidal oligothiophene for air-stable ambipolar organic field-effect transistors

    J. Li, X. Qiao, Y. Xiong, W. Hong, X. Gao and H. Li, J. Mater. Chem. C, 2013, 1, 5128
    DOI: 10.1039/C3TC30860J

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