Polymer field effect transistors fabricated by dewetting

Electronic industry in polymer transistor circuits requires patterning techniques that are capable of defining critical features down to submicrometer- or even nanometer-scale resolution. Employing conducting polymer as electrodes instead of inorganic noble metals, is highly industry needed towards low-cost fabrication of plastic electronic chips. We developed a dewetting process for fabricating short-channel polymer field effect transistors with conducting polymer employed as electrodes. Source and drain contacts were patterned by splitting conducting polymer water solution by a hydrophobic self-assembled monolayer, elevated by a hydrophilic insulating mesa, with the channel length actually determined by the length of the mesa. Polymer transistors with channel length down to 500 nm have been fabricated. (C) 2004 Elsevier B.V. All rights reserved.