Synthesis of Arylamine Tribenzopentaphenes and Investigation of their Hole Mobility

ChemistryOpen

Prof. Bassam Alameddine²  Dr. Andrew H. Rice¹  Prof. Christine Luscombe¹ 

[1] Materials Science and Engineering Department, University of Washington, Seattle, WA, USA;Department of Mathematics and Natural Sciences, Gulf University for Science and Technology, Hawally, Kuwait

关键词: conducting materials;    cross-coupling;    fused-ring systems;    Pi interactions;    thin films;   

DOI  :  10.1002/open.201500064

来源: Wiley

【 摘 要 】

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.

【 授权许可】

CC BY-NC-ND   
© 2015 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.

Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.