Issue 12, 2013

Pyrroloindacenodithiophene polymers: the effect of molecular structure on OFET performance

Abstract

The synthesis, characterization and testing of four novel pyrroloindacenodithiophene (NIDT) copolymers, in organic field effect transistor (OFET) devices, is reported. Copolymerization of thiophene, thienothiophene, thienopyrrolodione and diketopyrrolopyrrole with NIDT, to form alternating copolymers, is described. Two-dimensional Grazing Incidence Wide Angle X-ray Diffraction (2D GIWAXD) is used to probe the thin film molecular structure and, together with DFT studies, help to explain why the diketopyrrolopyrrole containing polymer outperforms the others in terms of hole transport, exhibiting an average mobility of 0.01 cm2 Vāˆ’1 sāˆ’1.

Graphical abstract: Pyrroloindacenodithiophene polymers: the effect of molecular structure on OFET performance

Supplementary files

Article information

Article type
Paper
Submitted
12 Mar 2013
Accepted
25 Apr 2013
First published
26 Apr 2013

Polym. Chem., 2013,4, 3537-3544

Pyrroloindacenodithiophene polymers: the effect of molecular structure on OFET performance

J. E. Donaghey, E. Sohn, R. S. Ashraf, T. D. Anthopoulos, S. E. Watkins, K. Song, C. K. Williams and I. McCulloch, Polym. Chem., 2013, 4, 3537 DOI: 10.1039/C3PY00335C

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