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Importance of C<inf>2</inf> symmetry for the device performance of a newly synthesized family of fused-ring thiophenes

He, M and Li, J and Tandia, A and Sorensen, M and Zhang, F and Fong, HH and Pozdin, VA and Smilgies, DM and Malliaras, GG (2010) Importance of C<inf>2</inf> symmetry for the device performance of a newly synthesized family of fused-ring thiophenes. Chemistry of Materials, 22. pp. 2770-2779. ISSN 0897-4756

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Abstract

We investigated the relationship between molecular structure and field-effect hole mobility in a family of fused-ring polythiophene copolymers that we designed recently. The results suggest that a repeat unit that possesses a C -axis perpendicular to the conjugation plane is important to achieve a high mobility. Our finding is supported by a review of literature data. Many polymer semiconductors showing a hole or electron mobility of >0.1 cm /(V s) feature a repeat unit with C symmetry; however, exceptions have been found from some push-pull polymer structures. © 2010 American Chemical Society. 2 2 2

Item Type: Article
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 10 Sep 2017 20:11
Last Modified: 10 Apr 2021 01:01
DOI: 10.1021/cm100524p