Conducting polyaniline as a potential ITO replacement for flat panel applications

Abstract

A highly soluble conducting polyaniline derivative having conductivity in the hundreds of S/cm has been studied as a potential spin-applied electrode material for flat panel applications. It has been found that the polyaniline can be easily patterned using conventional photoresist technology which involves no harsh etchants as does the patterning of ITO. The optical transmission, sheet and contact resistance of the polyaniline film as well as the transmission versus voltage curve, charge retention, and image sticking properties of test liquid crystal panels using polyaniline as an electrode are reported and compared to those characteristic of ITO.