A new, solution-processable, low-bandgap, diketopyrrolopyrrole- benzothiadiazole-based, donor-acceptor polymer semiconductor (PDPP-TBT) is reported. This polymer exhibits ambipolar charge transport when used as a single component active semiconductor in OTFTs with balanced hole and electron mobilities of 0.35 cm2 V-1s-1 and 0.40 cm 2 V-1s-1, respectively. This polymer has the potential for ambipolar transistor-based complementary circuits in printed electronics. Copyright © 2010 WILEY-VCH Verlag GmbH &amp; Co. KGaA, Weinheim.

Samarendra Pratap Singh

Physics

(SoNS) School of Natural Sciences

P. Sonar

Y. Li

M.S. Soh

A. Dodabalapur

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Shiv Nadar University

Advanced Materials

A low-bandgap diketopyrrolopyrrole-benzothiadiazole-based copolymer for high-mobility ambipolar organic thin-film transistors