COPPER(I) HALIDE-PHOSPHORUS ADDUCTS - A NEW FAMILY OF COPPER(I) ION CONDUCTORS

Ion exchange experiments and impedance spectroscopy investigations wer e performed on adducts of copper(I) halides to phosphorus and polyphos phorchalcogenide polymers, respectively. All compounds under investiga tion except one showed an ion exchange reaction (Cu+ <-> Ag+) in an aq ueous silver nitrate solution at room temperature and are therefore co nsidered to contain mobile copper ions. Impedance measurements on (CuI )(8)P-12, (CuI)(3)P-12 and Cu3P15I2 demonstrated that the total conduc tivity of (CuI)(8)P-12 and (CuI)(3)P-12 is predominantly ionic with co rresponding activation energies of 0.45 and 0.59 eV,respectively, whil e the conductivity of Cu3P15I2 is mainly electronic with a related act ivation energy of about 0.72 eV.