CORONA DISCHARGE - A DOPING METHOD FOR POLYANILINE

Corona discharge has been successfully employed to dope thin films of polyaniline coated on poly (ethylene terephthalate) films. Similarly t o the conventional doping with aqueous HCl, the process is accompanied by a color change from blue to green and the conductivity can be tune d in the range from 10(-10) up to 0.3 S cm(-1). This doping method pre sents several advantages over the conventional one, namely, dry proces s, use of no chemicals, rapidity and no dopant migration. (C) 1998 Ame rican Institute of Physics. [S0003-6951(98)02325-0].