Organic Electrodes Consisting of Dianthratetrathiafulvalene and Fullerene and Their Application in Organic Field Effect Transistors

A double layer of dianthratetrathiafulvalene (DATTF) and fullerene (C-60) on an n(++)-Si wafer pretreated with n-octyltrichlorosilane exhibited a high electrical conductivity of sigma = 0.12 S/cm and was used as source-drain electrodes in organic field effect transistors (OFETs). A simplified OFET device architecture composed of an organic semiconducting active layer and an organic electrode layer was easily fabricated by successive vacuum deposition of organic donor and acceptor layers. It was confirmed that this device configuration is applicable for both p-and n-type FET operation. (C) 2011 The Japan Society of Applied Physics