Patent ID: 7645497

Claim:
An electronically conductive article comprising, in order, a substrate, a discrete continuous conductive layer comprising an electronically conductive polymer, and at least one conductive carbon nanotube layer in contact with and formed over the discrete continuous conductive layer, and wherein said electronically conductive polymer comprises a polythiophene and a polyanion, wherein said polythiophene has the following formula in a cationic form, wherein each of R 1 and R 2 independently represents hydrogen or a C1-4 alkyl group or together represent an optionally substituted C1-4 alkylene group or a cycloalkylene group, an ethylene group, an optionally alkyl-substituted methylene group, an optionally C1-12 alkyl- or phenyl-substituted 1,2-ethylene group, a 1,3-propylene group or a 1,2-cyclohexylene group; and n is 3 to 1000; and wherein said carbon nanotube layer contains carbon nanotubes that are functionalized with covalently attached hydrophilic groups comprising carboxylic acid or carboxylic acid salt, or mixtures thereof, or a sulfur-containing group selected from: SOxZy, wherein x ranges from 1-3, Z is a hydrogen atom or a metal cation and y ranges from 0 or 1 or mixtures thereof.