Design of high mobility DPP-based polymer semiconductors for organic thin film transistors

Li, Y, Sonar, Prashant, Singh, S P, Soh, M S, Van Meurs, M, & Tan, J (2011) Design of high mobility DPP-based polymer semiconductors for organic thin film transistors. Polymer Preprints, 52, pp. 941-942.

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Abstract

π-Conjugated polymers are the most promising semiconductor materials to enable printed organic thin film transistors (OTFTs) due to their excellent solution processability and mechanical robustness. However, solution-processed polymer semiconductors have shown poor charge transport properties mainly originated from the disordered polymer chain packing in the solid state as compared to the thermally evaporated small molecular organic semiconductors. The low charge carrier mobility, typically < 0.1 cm2 /V.s, of polymer semiconductors poses a challenge for most intended applications such as displays and radio-frequency identification (RFID) tags. Here we present our recent results on the dike topyrrolopyrrole (DPP)-based polymers and demonstrate that when DPP is combined with appropriate electron donating moieties such as thiophene and thienothiophene, very high charge carrier mobility values of ~1 cm2/V.s could be achieved.

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ID Code: 79301
Item Type: Journal Article
Refereed: Yes
Additional URLs:
ISSN: 0032-3934
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2011 American Chemical Society
Deposited On: 08 Dec 2014 01:30
Last Modified: 10 Dec 2014 01:53

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