Journal of the American Chemical Society 2011-03-16

Thieno[3,2-b]thiophene-diketopyrrolopyrrole-containing polymers for high-performance organic field-effect transistors and organic photovoltaic devices.

Hugo Bronstein, Zhuoying Chen, Raja Shahid Ashraf, Weimin Zhang, Junping Du, James R Durrant, Pabitra Shakya Tuladhar, Kigook Song, Scott E Watkins, Yves Geerts, Martijn M Wienk, Rene A J Janssen, Thomas Anthopoulos, Henning Sirringhaus, Martin Heeney, Iain McCulloch

Index: J. Am. Chem. Soc. 133(10) , 3272-3275, (2011)

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Abstract

We report the synthesis and polymerization of a novel thieno[3,2-b]thiophene-diketopyrrolopyrrole-based monomer. Copolymerization with thiophene afforded a polymer with a maximum hole mobility of 1.95 cm(2) V(-1) s(-1), which is the highest mobility from a polymer-based OFET reported to date. Bulk-heterojunction solar cells comprising this polymer and PC(71)BM gave a power conversion efficiency of 5.4%.