Morphology-controlling Synthesis Of ZnS Through Hydrothermal/solvothermal Method

Recently, there has been growing interest in fabrication of nanometer to micrometer scale inorganic materials with special morphologies owing to the expectation of novel properties. Zinc sulfide, as an important semiconductor compound of theⅡ-Ⅵgroups, has been successfully synthesized some particular structures like quantum dots, nanowires, hollow spheres, nanosheets, and so on. Some methods have been developed to prepare the ZnS with different phases and morphologies, among which the hydrothermal or solvothermal route show many advantages such as mild reaction conditions, less energy consumption, simple equipment required, and the most important advantage is large number of variable factors to control the sample morphology, because the reaction path is very sensitive to the experimental conditions such as source species, surfactant molecules, reaction temperature, time and solvent.So far, to our knowledge, laminated ZnS was not synthesized by solvothermal route before. Herein, a solvothermal approach was developed to prepare laminated ZnS at 160℃for 12h starting from Zn(CH3COO)2·2H2O with SC(NH2)2 in mixed solvents of ethylenediamine and water, using C12H25SO3Na as the surfactant. The effect of ethylenediamine and C12H25SO3Na on the morphology of products was studied too. This reaction route can further be applied to prepare other metal sulfides.Zinc sulphide (ZnS) thin film is an important photoelectric semiconductor material, especially used in solar cell, has received a wide publicity, and the research has yielded substantial results.A hydrothermal approach was developed to prepare ZnS nano thin film at 160℃for 12h starting from Zn(CH3COO)2·2H2O with SC(NH2)2, using NH3 and N2H4 as complexing agent, and the thin film was deposited on glass. the ZnS thin film was net-like, which was not got by hydrothermal route before. We also discuss the influence of the complexing agents upon hydrothermal approach depositing ZnS thin films.