Journal of the American Chemical Society 2004-04-28

2,6-Diphenylbenzo[1,2-b:4,5-b']dichalcogenophenes: a new class of high-performance semiconductors for organic field-effect transistors.

Kazuo Takimiya, Yoshihito Kunugi, Yasushi Konda, Naoto Niihara, Tetsuo Otsubo

Index: J. Am. Chem. Soc. 16th ed., 126 , 5084-5085, (2004)

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Abstract

2,6-Diphenylbenzo[1,2-b:4,5-b']dichalcogenophenes including thiophene, selenophene, and tellurophene analogues as organic semiconductors for field-effect transistors were effectively synthesized in three steps from commercially available 1,4-dibromobenzene. All three benzodichalcogenophenes acted as good p-type semiconductors, and particularly the selenophene analogue, 2,6-diphenylbenzo[1,2-b:4,5-b']diselenophene, showed high FET mobility of 0.17 cm2 V-1 s-1.