title: Synthesis, crystal structure, and transistor performance of tetracene derivatives.
abstract: The substitution of chloro or bromo groups in tetracene gives rise to the change of crystal structure, having a substantial effect on carrier transport. Halogenated tetracene derivatives were synthesized and grown into single crystals. Monosubstituted 5-bromo- and 5-chlorotetracenes have the herringbone-type structure, while 5,11-dichlorotetracene has the slipped pi stacking structure. Mobility of 5,11-dichlorotetracene was measured to be as high as 1.6 cm2/V.s in single-crystal transistors. The pi stacking structure, which enhances pi orbital overlap and facilitates carrier transport, may thus be responsible for this high mobility.
authors.affiliation: Bell Laboratories, Lucent Technologies, Murray Hill, NJ 07974, USA.
authors.forename: Hyunsik
authors.initials: H
authors.lastname: Moon
authors.forename: Roswitha
authors.initials: R
authors.lastname: Zeis
authors.forename: Evert-Jan
authors.initials: EJ
authors.lastname: Borkent
authors.forename: Celine
authors.initials: C
authors.lastname: Besnard
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Lovinger
authors.forename: Theo
authors.initials: T
authors.lastname: Siegrist
authors.forename: Christian
authors.initials: C
authors.lastname: Kloc
authors.forename: Zhenan
authors.initials: Z
authors.lastname: Bao