Bilayer electronically conductive polymers and process for their production

Abstract From the Canadian patent

An electronically-conducting film is provided herein which may be either as a coherent coatincl on an electrode or as an unbacked film. The film is a bilayer, electronically-conducting film consisting of an outer film of a polypyrrole and a intermediate film of a polycarbazole in contact with a metal substrate. The bilayer film is suitably formed by a polycarbazole being electrodeposited, e.g. by galvanostatic electrolysis or by pulsed electrolysis on a suitable electrode which already has a, continuous film of polypyrrole thereon the electrode being, e.g. gold, silver copper, a piatinum group metal truthenium rhodium, palladium, osmium, iridium and platinum with platinum, or palladium …