Preparation and Optical Properties of Thin Films of ZnIn2S4 (I, III) Polytypes

Technological conditions were identified and thin layers of the ZnIn2S4 compound were obtained by vacuum deposition in a quasi-closed volume on non-orienting and orienting substrates made of various materials such as glass, fused quartz, glass-ceramic, transparent conducting SnO2 layers on glass, copper and steel plates, and mica. Thin layers of one- and three-packet polytypic modifications of the ZnIn2S4 compound with the crystallite plane (0001) parallel to the substrate were obtained on glass substrates. The microstructure of the films obtained under different deposition modes was studied. The optical absorption and photoluminescence excitation spectra were investigated. It was found that the layer parameters were close to those of single crystals.