A study of diphenylfumaronitrile and furan-substituted diketopyrrolopyrrole alternating copolymer and its thin-film transistors

Sonar, Prashant, Ha, Tae-Jun, Seong, Yuri, Yeh, Shih-Chieh, Chen, Chin-Ti, Manzhos, Sergei, & Dodabalapur, Ananth (2014) A study of diphenylfumaronitrile and furan-substituted diketopyrrolopyrrole alternating copolymer and its thin-film transistors. Macromolecular Chemistry and Physics, 215(8), pp. 725-732.

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Abstract

A fused aromatic furan-substituted diketopyrrolopyrrole and novel diphenylfumaronitrile conjugated building blocks are used for the synthesis of an alternating copolymer (DPFN-DPPF) via Suzuki polycondensation. In this paper, the first attempt to use the diphenylfumaronitrile building block for the synthesis of conjugated polymer is described. The number-average and weight-average molecular weights calculated for DPFN-DPPF are 20?661 and 66?346 g mol-1, respectively. The optical bandgap calculated for DPFN-DPPF is 1.53 eV whereas the highest occupied molecular orbital (HOMO) value calculated by photoelectron spectroscopy in air (PESA) is 5.50 eV. The calculated HOMO value is lower, which is suitable for stable organic electronic devices. DPFN-DPPF polymer is used as an active layer in bottom-contact bottom-gate organic thin-film transistor devices and the thin film exhibits a hole mobility of 0.20 cm2 V-1 s-1 in air.

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7 citations in Web of Science®

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ID Code: 75241
Item Type: Journal Article
Refereed: Yes
Keywords: diketopyrrolo[3, 4-c]pyrrole, fumaronitrile, furan, p-type organic thin-film transistors, polymer semiconductors, Chemical sensors, Copolymers, Organic pollutants, Photoelectron spectroscopy, Thin film transistors, Organic thin film transistors, Aromatic compounds
DOI: 10.1002/macp.201300588
ISSN: 1521-3935
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Deposited On: 09 Oct 2014 00:19
Last Modified: 09 Oct 2014 20:54

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