Patent ID: 7714319
Filing Date: 2010-05-11
Classification: H01L

Abstract:
1. An organic thin film transistor comprising: at least three terminals comprising a gate electrode, a source electrode and a drain electrode; and an insulating layer and an organic semiconductor layer on a substrate, which controls an electric current flowing between the source electrode and the drain electrode by applying an electric voltage across the gate electrode, a distance between the source electrode and the drain electrode being 1 μm to 1 mm; wherein the organic semiconductor layer comprises a heterocyclic compound containing a nitrogen atom expressed by formula (II): wherein R Z wherein the substituents represented by R said substituents are each independently unsubstituted or further substituted with an alkyl group, an alkenyl group, an aralkyl group, an aryl group, an acyl group, an alkoxyl group, an aryloxy group, an acyloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbonylamino group, a sulfonyl amino group, a sulfamoyl group, a carbamoyl group, a cyano group, a halogen atom, a hydroxy group or a heterocyclic group.