MSM optical detector on the basis of II-type ZnSe/ZnTe superlattice

On the basis of a type-II ZnSe/ZnTe superlattice, a MSM (metal–semiconductor–metal) photodetector is fabricated and investigated. The detector features low dark currents and a high sensitivity. The spectral characteristic of the detector provides the possibility of the selective detection of three separate spectral portions of visible and near-infrared radiation.