title: Cyanated isoindigos for n-type and ambipolar organic thin film transistors.
abstract: A set of three core-cyanated isoindigos was synthesized by palladium-catalyzed cyanation of core-brominated isoindigos. With decreased LUMO level to -3.88 eV, the dicyanated isoindigo 5 showed ambient-stable electron mobility up to 0.044 cm(2) V(-1) s(-1) in OTFTs with SAMs of TPA, while it exhibited ambipolar charge transport behaviour (0.11 cm(2) V(-1) s(-1) for electrons and 0.045 cm(2) V(-1) s(-1) for holes) on FOPA-modified substrates.
authors.affiliation: Universität Würzburg, Institut für Organische Chemie & Center for Nanosystems Chemistry, 97074 Würzburg, Germany. wuerthner@chemie.uni-wuerzburg.de.
authors.forename: Wan
authors.initials: W
authors.lastname: Yue
authors.forename: Tao
authors.initials: T
authors.lastname: He
authors.forename: Matthias
authors.initials: M
authors.lastname: Stolte
authors.forename: Marcel
authors.initials: M
authors.lastname: Gsänger
authors.forename: Frank
authors.initials: F
authors.lastname: Würthner