ELECTRICAL AND OPTICAL-PROPERTIES OF ZNSEMG CRYSTALS

ZnMgSe mixed crystals were obtained by the high pressure Bridgman meth od and by thermal diffusion of Mg metal into ZnSe crystals. Measuremen ts of luminescence and transmission spectra show that the band-gap ene rgy of such mixed crystals is larger than that of ''pure'' ZnSe. ZnMgS e crystals exhibit n-type conductivity and electrical parameters compa rable with that of ZnSe. Blue-violet luminescence in the temperature r ange from 40 K to room temperature was observed. This feature makes th is material very promising for future applications in constructing sho rt wavelength electroluminescent devices.