title: Synthesis of Arylamine Tribenzopentaphenes and Investigation of their Hole Mobility.
abstract: We report the versatile synthesis of two tribenzo[fj,ij,rst]pentaphene (TBP) derivatives bearing two diarylamine substituents attached at the opposite ends of the aromatic core. Field effect transistor (FET) devices of the bis-diarylamine-TBP compounds were fabricated using spin coating under different concentrations, spin speed, and solvent conditions. Emission spectra and surface investigation by atomic force microscopy (AFM) reveal the formation of aggregates induced by the strong π-π stacking of the aromatic core leading to island features, and thus, unexpected low hole mobilities. The synthetic strategy we show herein, however, offers the possibility to decorate the TBP core structure with various charge-carrier peripheral groups and optimized alkyl chains, which should improve the crystalline property of their thin films upon deposition, leading consequently to a better hole transport mobility.
authors.affiliation: Department of Mathematics and Natural Sciences, Gulf University for Science and Technology Hawally, 32093, Kuwait.
authors.forename: Bassam
authors.initials: B
authors.lastname: Alameddine
authors.affiliation: Materials Science and Engineering Department, University of Washington Seattle, WA, 98195-2120, USA.
authors.forename: Andrew H
authors.initials: AH
authors.lastname: Rice
authors.affiliation: Materials Science and Engineering Department, University of Washington Seattle, WA, 98195-2120, USA.
authors.forename: Christine
authors.initials: C
authors.lastname: Luscombe
authors.affiliation: Chemistry Department, University of Fribourg Chemin du Musée 9, 1700, Fribourg, Switzerland.
authors.forename: Titus A
authors.initials: TA
authors.lastname: Jenny
keywords: Pi interactions; conducting materials; cross-coupling; fused-ring systems; thin films