Enhanced performance characteristics of electropolymerized poly (3, 4 ethylenedioxythiophene) films on ITO by one step cyclic voltammetry

Abstract

Thin films of Poly (3, 4 ethylenedioxythiophene) (PEDOT) was electropolymerized onto indium tin oxide (ITO) coated glass substrate by simple one step cyclic voltammetry technique in an aqueous potassium nitrate medium. PEDOT films deposited on ITO/glass substrates were characterized for its, electrical, optical and structural properties. The redox properties of PEDOT thin films were carried out using cyclic voltammetry. The diffusion coefficient of the polymer films was calculated from cyclic voltammogram, which showed a less value when compared to the previous reports. The FTIR spectrum revealed the presence of PEDOT polymer on the substrate and SEM result showed flower–like structures of PEDOT thin film on ITO/glass with particle size of ~150 nm.