Electrochemical Deposition and Characterization of Doped Poly (3,4-Ethylene Dioxythiophene) for Potential Use as a Biosensor

Abstract

In this study, conducting polymer films of poly(3,4-ethylenedioxythiophene) (PEDOT) were electrodeposited onto a platinum electrode from an aqueous micellar medium. The electroactivity of the undoped and doped PEDOT films were compared. The electrodeposition was characterised by cyclic voltammetry and galvanostatic mode from LiClO₄ solution containing appropriate monomer concentrations and sodium dodecyl sulphate (SDS) as a wetting agent. The resulting polymer films were characterised using cyclic voltammetry in neutral phosphate buffer solutions, SEM and IR spectroscopy.