Patent ID: 7485894
Filing Date: 2009-02-03
Classification: B82Y,H01L

Abstract:
1. A thin film transistor comprising: a gate electrode; source and drain electrodes insulated from the gate electrode; an organic semiconductor layer that is insulated from the gate electrode and is electrically connected to the source and drain electrodes; an insulating layer that insulates the gate electrode from the source and drain electrodes or the organic semiconductor layer; and an ohmic contact layer that is interposed between the source/drain electrodes and the organic semiconductor layer and that contains a hole transporting compound and/or is a self assembled monolayer (SAM) including a repeating unit of formula (1) below, or a moiety of formula (2) below: where X Y Y * and *′ indicate binding with the source and drain electrodes or the organic semiconductor layer, wherein the hole transporting compound is at least one selected from the group consisting of where R R Ar n is an integer from 1 to 10; and Q