The role of Al2O3 interlayer in the synthesis of ZnS/Al2O3/MoS2 core-shell nanowires

During the synthesis of heterostructured nanomaterials, unwanted structural and morphological changes in nanostructures may occur, especially when multiple sequential growth steps are involved. In this study, we describe a strategy ZnS/Al2O3/MoS2 core-shell nanowires (NWs), explore role Al2O3 interlayer during synthesis. Core-shell NWs were produced via four-step route: (1) ZnO on silicon wafer, (2) deposition thin layer by ALD, (3) magnetron MoO3 layer, (4) annealing sample sulphur atmosphere. sulphurization, is converted into ZnS, MoS2, while preserves smooth surface an NW required for continuous MoS2 shell. The resulting characterized transmission electron microscopy, X-ray diffraction photoelectron spectroscopy, Raman optical photoluminescence spectroscopy. A reported can be used other with transition metal dichalcogenides (TMDs) shell to protect core material that otherwise altered or damaged reactive chalcogenides at high temperatures.