Highly soluble [1]benzothieno[3,2-b]benzothiophene (BTBT) derivatives for high-performance, solution-processed organic field-effect transistors

Hideaki Ebata; Takafumi Izawa; Eigo Miyazaki; Kazuo Takimiya; Masaaki Ikeda; Hirokazu Kuwabara; Tatsuto Yui

doi:10.1021/ja074841i

Highly soluble [1]benzothieno[3,2-b]benzothiophene (BTBT) derivatives for high-performance, solution-processed organic field-effect transistors

J Am Chem Soc. 2007 Dec 26;129(51):15732-3. doi: 10.1021/ja074841i. Epub 2007 Nov 29.

Authors

Hideaki Ebata¹, Takafumi Izawa, Eigo Miyazaki, Kazuo Takimiya, Masaaki Ikeda, Hirokazu Kuwabara, Tatsuto Yui

Affiliation

¹ Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.

PMID: 18044892
DOI: 10.1021/ja074841i

Abstract

2,7-Dialkyl[1]benzothieno[3,2-b]benzothiophenes were tested as solution-processible molecular semiconductors. Thin films of the organic semiconductors deposited on Si/SiO2 substrates by spin coating have well-ordered structures as confirmed by XRD analysis. Evaluations of the devices under ambient conditions showed typical p-channel FET responses with the field-effect mobility higher than 1.0 cm2 V-1 s-1 and Ion/Ioff of approximately 10(7).