期刊
ORGANIC ELECTRONICS
卷 13, 期 9, 页码 1606-1613出版社
ELSEVIER
DOI: 10.1016/j.orgel.2012.04.023
关键词
Organic thin film transistors; Organic field effect transistors; Organic electronics; Printed organic electronics; Ambipolar polymer semiconductors; Ambipolar transistors
资金
- Agency of Science, Technology and Research (A*STAR), Institute of Material and Research Engineering (IMRE) of Singapore
- Canadian Government
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 (mu(h) = 0.024 cm(2) V (1) s (1) and mu(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. (C) 2012 Elsevier B. V. All rights reserved.
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