Reversible Conversion of the Majority Carrier Type in Solution-Processed Ambipolar Quinoidal Oligothiophene Thin Films

Reversible Conversion of the Majority Carrier Type in Solution-Processed Ambipolar Quinoidal Oligothiophene Thin Films

Solution‐processed organic field‐effect transistors based on the ambipolar quinoidal oligothiophene [QQT(CN)4] show either p‐ or n‐type dominant behavior depending on the solvent used for the spin‐coating of the semiconducting organic thin film. In addition, majority carrier type conversion from n‐t...

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Veröffentlicht in:Advanced materials (Weinheim) 2010-09, Vol.22 (36), p.4044-4048
Hauptverfasser: Ribierre, Jean-Charles, Watanabe, Satoshi, Matsumoto, Mutsuyoshi, Muto, Tsuyoshi, Nakao, Aiko, Aoyama, Tetsuya
Format: Artikel
Sprache:eng
Schlagworte:
Absorption
ambipolar charge transport
Benzoquinones - chemistry
Chloroform - chemistry
majority carrier-type conversion
organic field-effect transistors
Polymers - chemistry
quinoidal oligothiophenes
solution processing
Solutions
Spectrum Analysis
thin films
Thiophenes - chemistry
Transistors, Electronic
X-Ray Diffraction
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Zusammenfassung:Solution‐processed organic field‐effect transistors based on the ambipolar quinoidal oligothiophene [QQT(CN)4] show either p‐ or n‐type dominant behavior depending on the solvent used for the spin‐coating of the semiconducting organic thin film. In addition, majority carrier type conversion from n‐type to ambipolar is achieved by solvent vapor treatment.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201001170