The Manufacture of Conductive paste for OTFT source & drain contacts Fabricated by Direct printing method

Direct Printing법에 의해 제작된 OTFT용 source & drain 전극용 전도성 페이스트 제조

We studied about conductive pastes of the source-drain contacts for OTFTs(organic thin-film transistors) fabricated by direct printing(screen printing) method. We used Ag and conductive carbon black powder as the conductive fillers of pastes. The conductive pastes were manufactured by various dispersing agents and dispersing conditions and source-drain contacts with $100{\mu}m$ of channel length were fabricated. We could obtain the OTFTs which exhibited different field-effect behaviors over a range of source-dram and gate voltages depending on a kind of conductive fillers used conductive pastes.