STUDY OF CHEMICALLY (ASF5) AND ELECTROCHEMICALLY DOPED ALUMINUM POLYFLUOROPHTHALOCYANINE, (PCA1F)N

Chemical AsF//5 and electrochemical AsF//6** minus doping of aluminum polyfluorophthalocyanine, (AlPcF)//n, has been studied. Thermogravimetric analysis, infrared spectroscopy, X-ray diffraction and electrical conductivity measurements were used to characterize the doped materials. A qualitative structural model is proposed to explain the low electrical conductivity of these samples. Results are compared with those for iodine-doped (AlPcF)//n and (GaPcF)//n. Cyclic voltammetry performed on polymer films revealed the existence of two oxidation peaks. While it is very likely that the second peak is accompanied by a chemical reaction taking place at the polymer electrode, it is possible to obtain a lightly AsF//6** minus -doped sample for applied potentials lower than 0. 6 V (versus Ag/Ag** plus ). Very similar results are obtained with BF//4** minus and ClO//4** minus doping anions.