title: Tetrathienoacene copolymers as high mobility, soluble organic semiconductors.
abstract: Increasing the rigidity of the thiophene monomer through the use of an alkyl-substituted core that consists of four fused thiophene rings is shown to be a promising route toward high-performance organic semiconductors. We report on a dialkylated tetrathienoacene copolymer that can be deposited from solution to yield ordered films with a short pi-pi distance of 3.76 A and with a field-effect hole mobility that exceeds 0.3 cm2/V.s. This polymer enables simple transistor fabrication at relatively low temperatures, which is particularly important for the realization of large-area, mechanically flexible electronics.
authors.affiliation: Materials Science and Engineering, Cornell University, Ithaca New York 14853, USA.
authors.forename: Hon Hang
authors.initials: HH
authors.lastname: Fong
authors.forename: Vladimir A
authors.initials: VA
authors.lastname: Pozdin
authors.forename: Aram
authors.initials: A
authors.lastname: Amassian
authors.forename: George G
authors.initials: GG
authors.lastname: Malliaras
authors.forename: Detlef-M
authors.initials: DM
authors.lastname: Smilgies
authors.forename: Mingqian
authors.initials: M
authors.lastname: He
authors.forename: Susan
authors.initials: S
authors.lastname: Gasper
authors.forename: Feixia
authors.initials: F
authors.lastname: Zhang
authors.forename: Michael
authors.initials: M
authors.lastname: Sorensen