Preparation and Physical Properties of Superionic Cu7-GeS5I-based Nano-ceramic and Thin Film

Cu
₇
GeS
₅
I superionic ceramics were prepared from nanocrystalline powder, obtained by ball milling. From the structural investigations the average grain size of nanocrystalline powder was determined. Electrical conductivity measurements were carried out in the temperature interval 300-400 K. The temperature dependence of electrical conductivity was analyzed. Cu
₇
Gex
₅
I-based thin film was obtained by the high target utilisation sputtering. The structural properties were investigated by X-ray diffraction and scanning electron microscopy studies. Optical parameters were obtained using technique of ellipsometry and absorption spectroscopy.