Organic thin film transistor, organic semiconductor thin film, and organic semiconductor material

摘要

An organic thin film transistor containing a compound represented by the formula (1) in a semiconductor active layer has a high carrier mobility and a small fluctuation of the threshold voltage after repeated driving. R1 to R12 represent a hydrogen atom or a substituent, provided that at least one of R1 to R12 represents a substituent represented by the formula (W), or all of R1 to R12 represent a hydrogen atom. * represents a position bonded to the naphthobisbenzofuran skeleton. L represents a single bond, a divalent linking group, an oligoethyleneoxy group having a repeating number of an ethyleneoxy unit of 2 or more, or an oligosiloxane group having 2 or more silicon atoms.;

主权项

1. An organic thin film transistor containing a compound represented by the following formula (1) in a semiconductor active layer: wherein R1 to R12 each independently represent a hydrogen atom or a substituent, provided that at least one of R1 to R12 represents a substituent represented by the following formula (W), or all of R1 to R12 represent a hydrogen atom:
*-L-R  Formula (W) wherein * represents a position bonded to the naphthobisbenzofuran skeleton; L represents a single bond, a divalent linking group represented by any one of the following formulae (L-1) to (L-12), or a divalent linking group containing 2 or more divalent linking groups each represented by any one of the following formulae (L-1) to (L-12) bonded to each other; and R represents a substituted or unsubstituted alkyl group having 6 to 12 carbon atoms, an oligoethyleneoxy group having a repeating number of an ethyleneoxy unit of 2 or more, or an oligosiloxane group having 2 or more silicon atoms: wherein in the formulae (L-1) to (L-12), the wavy line represents a position bonded to the naphthobisbenzofuran skeleton, and * represents a position bonded to R in the formula (W); in the formula (L-1), n represents an integer of 1 or more; in the formula (L-10), m represents 4; in the formulae (L-11) and (L-12), m represents 2; and in the formulae (L-2), (L-10), (L-11) and (L-12), R′ each independently represent a hydrogen atom or a substituent.