Patent ID: 8217389

Claim:
An organic thin film transistor comprising a substrate having thereon at least three terminals of a gate electrode, a source electrode and a drain electrode, an insulator layer and an organic semiconductor layer, with a current between a source and a drain being controlled upon application of a voltage to the gate electrode, wherein the organic semiconductor layer includes a compound represented by the following formula (1): in the formula (1), Ar 1 is represented by the following formula (2); and Ar 3 is represented by the following formula (3): in the formulae (2) and (3), R 1 to R 10 each independently represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 30 carbon atoms, a haloalkyl group having from 1 to 30 carbon atoms, an alkoxyl group having from 1 to 30 carbon atoms, a haloalkoxyl group having from 1 to 30 carbon atoms, an alkylthio group having from 1 to 30 carbon atoms, a haloalkylthio group having from 1 to 30 carbon atoms, an alkylamino group having from 1 to 30 carbon atoms, a dialkylamino group having from 2 to 30 carbon atoms (the alkyl groups may be bonded to each other to form a nitrogen atom-containing cyclic structure), an alkylsulfonyl group having from 1 to 30 carbon atoms, a haloalkylsulfonyl group having from 1 to 30 carbon atoms, an aromatic hydrocarbon group having from 6 to 60 carbon atoms, an aromatic heterocyclic group having from 1 to 60 carbon atoms, an optionally substituted alkylsilyl group having from 1 to 30 carbon atoms or a cyano group; and each of these groups may have a substituent, R 1 to R 5 and R 6 to R 10 may each form a saturated or unsaturated cyclic structure together with an adjacent group thereto, Ar 2 represents an optionally substituted condensed polycyclic aromatic hydrocarbon group having from 10 to 60 carbon atoms or an optionally substituted aromatic heterocyclic group having from 1 to 60 carbon atoms, and n represents an integer of from 1 to 20.