BPTs: thiophene-flanked benzodipyrrolidone conjugated polymers for ambipolar organic transistors

Joseph W. Rumer; Matthew Levick; Sheng-Yao Dai; Stephan Rossbauer; Zhenggang Huang; Laure Biniek; Thomas D. Anthopoulos; James R. Durrant; David J. Procter; Iain McCulloch

doi:10.1039/C3CC40811F

BPTs: thiophene-flanked benzodipyrrolidone conjugated polymers for ambipolar organic transistors†

Joseph W. Rumer,*^a Matthew Levick,^b Sheng-Yao Dai,^b Stephan Rossbauer,^c Zhenggang Huang,^a Laure Biniek,^a Thomas D. Anthopoulos,^c James R. Durrant,^a David J. Procter^b and Iain McCulloch^a

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* Corresponding authors

^a Department of Chemistry and Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, UK
E-mail: jwrumer@imperial.ac.uk

^b School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK

^c Department of Physics and Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, UK

Abstract

A series of novel thiophene-flanked benzodipyrrolidone (BPT)-based alternating copolymers are synthesised, their optical and electrical properties evaluated. The BPT unit promotes a conjugated, planar polymer backbone, with a low bandgap, primarily due to low lying LUMO energy levels. Copolymerisation with thiophene exhibits well balanced ambipolar organic field-effect transistor performance, with electron and hole mobilities 0.1 and 0.2 cm² V⁻¹ s⁻¹, respectively.

Chemical Communications

BPTs: thiophene-flanked benzodipyrrolidone conjugated polymers for ambipolar organic transistors†

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BPTs: thiophene-flanked benzodipyrrolidone conjugated polymers for ambipolar organic transistors

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