ZNS-ZNTE ALLOY-FILMS - PREPARATION AND PROPERTIES

ZnSxTe1-x films (0 < x < 1) have been prepared by simultaneous evapora tion of ZnS and ZnTe powders (both of 99.999% purity) from coaxial qua rtz crucibles placed inside a two-zone graphite heater. The films were characterized by measuring the electrical conductivity, optical and t hermoelectric properties. Raman scattering and structural studies usin g X-ray diffraction, transmission electron microscopy and scanning ele ctron microscopy measurements were carried out. Information on grain b oundary scattering in these films was obtained.