Organic field-effect transistors fabricated with N, N′ -substituted dialkyl-1,3,8,10-tetramethylquinacridone compounds

Xu, Z.-X., Xiang, H.-F., Roy, V.A.L. , Chui, S. S.-Y., Wang, Y., Lai, P.T. and Che, C.-M. (2009) Organic field-effect transistors fabricated with N, N′ -substituted dialkyl-1,3,8,10-tetramethylquinacridone compounds. Applied Physics Letters, 95(12), 123305. (doi: 10.1063/1.3233961)

Abstract

A series of robust and inexpensive p-type organic semiconductors 1,3,8,10-tetramethyl quinacridone compounds was prepared. These quinacridone compounds bearing N,N′-disubstituted long N-alkyl chains self-organize into highly oriented crystalline films, leading to high performance organic thin film transistors with the best field-effect mobility, on/off ratio, and threshold voltage being 1.6×10−1 cm2 V−1 s−1, 1×104, and −17 V, respectively. The effects of methyl substituent and N-alkyl chain length of the quinacridone compounds together with the molecular packing on the field-effect mobility are discussed.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Vellaisamy, Professor Roy
• Authors: Xu, Z.-X., Xiang, H.-F., Roy, V.A.L., Chui, S. S.-Y., Wang, Y., Lai, P.T., and Che, C.-M.
• College/School: College of Science and Engineering > School of Engineering
• Journal Name: Applied Physics Letters
• Publisher: AIP Publishing
• ISSN: 0003-6951
• ISSN (Online): 1077-3118
• Published Online: 22 September 2009