A straightforward approach to the synthesis of electrically conducting PEDOT thin films using metastable and organic solvent processable mixtures that rapidly polymerize upon solvent evaporation is presented This one-step synthetic procedure, previously used to prepare well behaved polypyrrole and polythiophene films, has now been extended to one of the most academically/Industrially studied and commercially successful polythiophene based polymers, PEDOT The methodology can be used to synthesize smooth, uniform, homogeneous, crack and pinhole free, conducting (0 02-0 47 S/cm), and highly transmissive PEDOT films with well-defined spectroelectrochemistry by spin-coating organic-solvent processable mixtures of EDOT monomer and phosphomolybdic acid oxidant onto conductive and nonconductive glass substrates