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Erschienen in: Journal of Materials Science: Materials in Electronics 9/2016

18.05.2016

A comparative study of bithiophene and thienothiophene based polymers for organic field-effect transistor applications

verfasst von: Ping Deng, Shendong Ren, Kangli Cao, Hongxiang Li, Qing Zhang

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 9/2016

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Abstract

2,2′-Bithiophene and thieno[3,2-b]thiophene were polymerized separately with bis(2,3-dialkylthienyl)benzo[1,2-b:4,5-b’]dithiophene by Stille coupling reactions to afford new conjugated polymer PBDTT-2T and PBDTT-TT. The polymers showed band gaps about 1.90 eV and the highest occupied molecular orbital (HOMO) energy levels below −5.20 eV. The PBDTT-2T and PBDTT-TT achieved hole mobilities of 0.035 and 0.008 cm2 V−1 s−1 in top-contact/bottom-gate organic field-effect transistor devices. The investigation of thin-film microstructures and morphologies showed that PBDTT-2T thin films had more uniform surface and better crystalline quality than PBDTT-TT did.

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Metadaten
Titel
A comparative study of bithiophene and thienothiophene based polymers for organic field-effect transistor applications
verfasst von
Ping Deng
Shendong Ren
Kangli Cao
Hongxiang Li
Qing Zhang
Publikationsdatum
18.05.2016
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 9/2016
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-016-4950-2

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