Research Information System
3rd International Conference on Materials and Applications for Sensors and Transducers (IC-MAST), Prague, Czech Republic, 13 - 17 September 2013, vol.605, pp.531-535
Among the conducting polymers, polyaniline is of vital importance as an electronic material [1, 2, 3, 4] because of its easy synthesis, environmental stability, reversible proton dopability, redox recyclability, cost-effectiveness, and reasonable electrical conductivity. Electrical and optoelectronic applications of conducting polymers often require high current densities that can be achieved by either heavy doping or a high-level carrier injection. Polyaniline occurs in four oxidation states (i.e., leucoemeraldine, emeraldine base, emeraldine salt, and pernigraniline), out of which only emeraldine salt is conductive in nature (the others are insulating in nature). Polyaniline (PANI) exists in a variety of forms that differ in chemical and physical properties [5, 6, 7, 8, 9].