All printed organic electrochemical transistors

The development of flexible organic electronic devices has been rapidly growing since the discovery of conducting polymers. Organic electrochemical transistor (OECT), in particular, is receiving increasing attention due to its low power consumption, high transconductance, high signal-noise ratio, and its ability to serve as versatile electronic building block in printed electronics. However, traditional silicon-based transistor fabrication methods like etching and sputtering are incompatible with organic-based electronic circuits. This project aims to develop and optimize screen-printed processes for OECT-based circuits which are compatible with large-scale manufacturing and have the potential to lower cost when combined with high production yield. The novel materials and device structure of printed OECT is compared and optimized. This printing method will enable the high production of the all- printed OECT array with fast transient response(1.9ms for switching off and 28ms for switching on) which has never been reported previously in the screen-printed OECTs area.Master of Engineerin