Issue 10, 2013

Donor–acceptor copolymers containing quinacridone and benzothiadiazole for thin film transistors

Abstract

Two donor–acceptor copolymers, PQB and PQBOC8, containing a donor component quinacridone and an acceptor component benzothiadiazole were synthesized. Introduction of two additional alkoxy chains onto the benzothiadiazole in PQBOC8 not only enhanced solubility and molecular weight but also altered photo-electrochemical properties and polymer chain conformation compared with PQB. As a result, they exhibited different film microstructure and transistor performance. Indeed, PQBOC8 exhibited an ordered lamellar structure with a chain-to-chain distance of 21.5 Å and a π–π stacking distance of 4.0 Å and showed a hole mobility of up to 0.30 cm2 V−1 s−1 in ambient conditions, while PQB revealed a highly disordered film microstructure and a hole mobility of 5.77 × 10−3 cm2 V−1 s−1.

Graphical abstract: Donor–acceptor copolymers containing quinacridone and benzothiadiazole for thin film transistors

Supplementary files

Article information

Article type
Paper
Submitted
02 Nov 2012
Accepted
13 Jan 2013
First published
16 Jan 2013

J. Mater. Chem. C, 2013,1, 2021-2027

Donor–acceptor copolymers containing quinacridone and benzothiadiazole for thin film transistors

H. Li, C. Gu, L. Jiang, L. Wei, W. Hu and H. Fu, J. Mater. Chem. C, 2013, 1, 2021 DOI: 10.1039/C3TC00550J

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