Organic thin film transistor, organic semiconductor material for non-light emitting organic semiconductor device and its application

摘要

PROBLEM TO BE SOLVED: To provide an organic thin film transistor having high carrier mobility.SOLUTION: An organic thin film transistor containing a compound represented by the following formula in a semiconductor active layer. In the formula, x represents O, S or Se atom; R,R,Rand Rto Rrepresent hydrogen or halogen atom; R,R,Rand Rrepresent hydrogen atom, alkyl group, halogen atom or -L-R; one of R,R,Rand Rrepresents -L-R; L represents specific bivalent coupling group (however, bivalent coupling group represented by -CR'- is not directly coupled to mother nucleus; R represents alkyl group, cyano group, vinyl group, ethynyl group, oxyethylene group, oligooxyetylene group in which the repetition number v of oxyethylene unit is equal to 2 or more, siloxane group, oligosiloxane in which the number of silicon atoms is equal to 2 or more, or trialkylsilyl group.