title: Alpha,omega-distyryl oligothiophenes: high mobility semiconductors for environmentally stable organic thin film transistors.
abstract: Critical to the development of organic electronics is the design and synthesis of new organic semiconductors with improved electrical performance and enhanced environmental stability. We present in this communication the synthesis of a series of simple oligothiophene derivatives that bear the styryl unit as terminal substituent. Thin film field-effect transistors incorporating these compounds show high electrical performance, such as mobilities as high as 0.1 cm2/Vs, along with exceptional stability under ambient conditions. Especially, the longer oligomer, DS-4T, containing the quaterthiophene core gives rise to devices that show no decrease in performance after more than 17 months of storage and under continuous operation. Such stability features are unprecedented in the oligothiophene series.
authors.affiliation: Laboratoire des Matériaux Moléculaires et des Biomatériaux, GCOM2 UMR CNRS 6114, Université de la Méditerranée, Faculté des Sciences de Luminy, Case 901, 13288 Marseille Cedex 9, France. videlot@luminy.univ-mrs.fr
authors.forename: Christine
authors.initials: C
authors.lastname: Videlot-Ackermann
authors.forename: Jörg
authors.initials: J
authors.lastname: Ackermann
authors.forename: Hugues
authors.initials: H
authors.lastname: Brisset
authors.forename: Koji
authors.initials: K
authors.lastname: Kawamura
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Yoshimoto
authors.forename: Pascal
authors.initials: P
authors.lastname: Raynal
authors.forename: Ahmed
authors.initials: A
authors.lastname: El Kassmi
authors.forename: Frédéric
authors.initials: F
authors.lastname: Fages