Electrochemical synthesis of poly(dithienothiophene)

Electrochemical characterization of the preparation procedure and the properties of poly(dithieno[3,4-b: 3?,4? - d] thiophene) is performed. This new conjugated system has the unique property of high transparency in the conductive state. By means of cyclic voltammetry and impedance spectroscopy it was found that oxidation of the monomer starts at 0.95 V vs Ag/AgCl and the created polymer easily deteriorates at potentials exceeding 1.1 V. The overoxidation results in decay of electroactivity and conductivity.