Solution processable poly(2,5-dialkyl-2,5-dihydro-3,6-di-2-thienyl- pyrrolo[3,4-c]pyrrole-1,4-dione) for ambipolar organic thin film transistors
Li, Yuning, Sun, Bin, Sonar, Prashant, & Singh, Samarendra P. (2012) Solution processable poly(2,5-dialkyl-2,5-dihydro-3,6-di-2-thienyl- pyrrolo[3,4-c]pyrrole-1,4-dione) for ambipolar organic thin film transistors. Organic Electronics, 13(9), pp. 1606-1613.
Solution processable diketopyrrolopyrrole (DPP)-bithiophene polymers (PDBT) with long branched alkyl side chains on the DPP unit are synthesized. These polymers have favourable highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels for the injection and transport of both holes and electrons. Organic thin film transistors (OTFTs) using these polymers as semiconductors and gold as source/drain electrodes show typical ambipolar characteristics with very well balanced high hole and electron mobilities (μ h = 0.024 cm 2 V -1 s -1 and μ e = 0.056 cm 2 V -1 s -1). These simple and high-performing polymers are promising materials for ambipolar organic thin film transistors for low-cost CMOS-like logic circuits.
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|Item Type:||Journal Article|
|Keywords:||Ambipolar polymer semiconductors, Ambipolar transistors, Organic electronics, Organic field effect transistors, Organic thin film transistors, Printed organic electronics, Polymer semiconductors, Electron energy levels, Electron mobility, Logic circuits, Quantum chemistry, Thin film transistors, Polymers|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2012 Elsevier B.V.|
|Deposited On:||09 Oct 2014 00:19|
|Last Modified:||09 Oct 2014 21:52|
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