title: Influence of side-chain regiochemistry on the transistor performance of high-mobility, all-donor polymers.
abstract: Three novel polythiophene isomers are reported whereby the only difference in structure relates to the regiochemistry of the solubilizing side chains on the backbone. This is demonstrated to have a significant impact on the optoelectronic properties of the polymers and their propensity to aggregate in solution. These differences are rationalized on the basis of differences in backbone torsion. The polymer with the largest effective conjugation length is demonstrated to exhibit the highest field-effect mobility, with peak values up to 4.6 cm(2) V(-1) s(-1).
authors.affiliation: Department of Chemistry and Centre for Plastic Electronics, Imperial College London , Exhibition Road, London SW7 2AZ, U.K.
authors.forename: Zhuping
authors.initials: Z
authors.lastname: Fei
authors.forename: Pichaya
authors.initials: P
authors.lastname: Pattanasattayavong
authors.forename: Yang
authors.initials: Y
authors.lastname: Han
authors.forename: Bob C
authors.initials: BC
authors.lastname: Schroeder
authors.forename: Feng
authors.initials: F
authors.lastname: Yan
authors.forename: R Joseph
authors.initials: RJ
authors.lastname: Kline
authors.forename: Thomas D
authors.initials: TD
authors.lastname: Anthopoulos
authors.forename: Martin
authors.initials: M
authors.lastname: Heeney