THE MANUFACTURING METHOD OF ACTIVE CHANNEL REGION FOR ORGANIC FIELD-EFFECT TRANSISTORS USING INKJET PRINTING AND THE ORGANIC FIELD-EFFECT TRANSISTORS THEREBY

摘要

PURPOSE: A method for forming an active channel layer of an organic field effect transistor and the organic field effect transistor using the same are provided to improve an electrical property by including an active channel layer which is arranged from a grain boundary. CONSTITUTION: Disclosed is a method for forming an active channel layer between a source electrode and a drain electrode. A first liquid(105) is dropped on the drain electrode. A second liquid(106) with dissolved organic semiconductor materials is dropped on the first liquid. The evaporation speed of the first liquid is slower than the evaporation speed of the second liquid. The first liquid and the second liquid have different polarities not to be mixed. The density of the first liquid is larger than the density of the second liquid.