DEPOSITION AND CHARACTERIZATION OF CONDUCTING POLYMER THIN-FILMS ON INSULATING SUBSTRATES

Chemical polymerization of aniline and pyrrole in dilute aqueous solut ion was used to produce coatings having a conductivity as high as 0.72 and 0.073 S/cm for films having optical absorbance of 0.032 (800 nm) and 0.012 (1000 nm), respectively. Assessment of the stability of the conductivity for films having optical properties of the coatings durin g weathering, salt fog and humidity exposure showed that there was som e loss in conductivity over an eight-day period, but no deterioration in optical transparency. Electron spectroscopy for chemical analysis w as used to determine changes in surface composition and bonding during the environmental exposure tests.