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Issue 42, 2013
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Phenanthro[1,2-b : 8,7-b’]dithiophene: a new picene-type molecule for transistor applications

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Abstract

A new picene-type molecule, phenanthro[1,2-b : 8,7-b’]dithiophene, has been synthesized for use in organic field-effect transistors (OFETs). The molecule consists of a phenanthrene core with two thiophene rings fused on the ends. This molecule can be recognized as a picene analogue. The electronic structure of the molecule was determined by its optical absorption spectrum together with a theoretical calculation based on density functional theory (DFT). The topological and electronic structures of thin films produced by direct thermal evaporation of the compounds and by deposition from a solution were characterized by optical imaging, X-ray diffraction, and atomic force microscopy. FET devices were fabricated with these thin films, and showed field-effect mobility as high as 10−1 cm2 V−1 s−1.

Graphical abstract: Phenanthro[1,2-b : 8,7-b’]dithiophene: a new picene-type molecule for transistor applications

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Supplementary files

Article information


Submitted
11 Jul 2013
Accepted
08 Aug 2013
First published
12 Aug 2013

RSC Adv., 2013,3, 19341-19347
Article type
Paper

Phenanthro[1,2-b : 8,7-b’]dithiophene: a new picene-type molecule for transistor applications

Y. Nishihara, M. Kinoshita, K. Hyodo, Y. Okuda, R. Eguchi, H. Goto, S. Hamao, Y. Takabayashi and Y. Kubozono, RSC Adv., 2013, 3, 19341
DOI: 10.1039/C3RA44050H

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