Sources of optical radiation based on ZnTe/ZnSe/ZnS heterostructures

The heterostructures of zinc chalcogenides beta-ZnTe/ZnSe/ZnS were obtained by isovalent substitution. The regimes for obtaining materials that ensured the stability of the cubic lattice of heterolayers of zinc chalcogenides beta-ZnSe and beta-ZnS were determined. The isovalent elements Se and S determined the solid-phase substitution and determined the formation of heterolayers in the lattice of the surface of the base crystal. The optical transmission, reflection, and photoluminescence spectra of the heterolayers are studied. The analysis of the results of studies of the energy structure of the obtained heterolayers was carried out, which indicates the correspondence of these heterolayers to the compounds of zinc selenide and zinc sulfide obtained by classical technological processes. They are also confirmed by the results of studies of the optical transmission of beta-ZnSe and beta-ZnS films specially obtained on transparent substrates under the same growing conditions as compared to isovalent substitution. Copyright (C)2022 Elsevier Ltd. All rights reserved.