Issue 5, 2011

Small band gap copolymers based on furan and diketopyrrolopyrrole for field-effect transistors and photovoltaic cells

Abstract

Four small band gap semiconducting copolymers based on electron deficient diketopyrrolopyrrole alternating with electron rich trimers containing furan and benzene or thiophene have been synthesized via Suzuki polymerization. The polymers have optical band gaps between 1.4 and 1.6 eV, optimized for solar energy conversion, and exhibit ambipolar charge transport in field-effect transistors with hole and electron mobilities higher than 10−2 cm2 V−1 s−1. In solar cells the polymers are used as electron donors and provide power conversion efficiencies up to 3.7% in simulated solar light when mixed with [70]PCBM as acceptor.

Graphical abstract: Small band gap copolymers based on furan and diketopyrrolopyrrole for field-effect transistors and photovoltaic cells

Supplementary files

Article information

Article type
Paper
Submitted
18 Sep 2010
Accepted
02 Nov 2010
First published
06 Dec 2010

J. Mater. Chem., 2011,21, 1600-1606

Small band gap copolymers based on furan and diketopyrrolopyrrole for field-effect transistors and photovoltaic cells

J. C. Bijleveld, B. P. Karsten, S. G. J. Mathijssen, M. M. Wienk, D. M. de Leeuw and R. A. J. Janssen, J. Mater. Chem., 2011, 21, 1600 DOI: 10.1039/C0JM03137B

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