Material issues for construction of organic and polymeric driving circuitsfor display and electronic applications

Organic and polymeric driving circuits may be a possible alternative to rea lize low cost flexible and large area flat panel displays. Recent efforts h ave been directed to the discovery of solution processable polymeric semico nductors for the ease of fabrication and low cost. In this paper, we report the investigation of various 3-substituted regioregular polythiophenes as active semiconductors for field-effect transistors. The best transistor per formance has been found with regioregular poly(3-heaxylthiophene). The diff erence in their device performance was correlated to the structure and morp hological behavior of these regioregular polythiophenes.