Abstract
Water soluble ZnS, CdS and multilayer coated ZnS/CdS/ZnS nanocomposites were successfully synthesized by chemical method in an air atmosphere. Structural, morphology and optical properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV–visible absorption (UV–vis) and photoluminescence (PL) spectrometer. The obtained particles are highly crystalline and monodisperse with an average particle size of 4.3–5.6nm range. A significant red shift was observed by increasing the CdS thickness in ZnS/CdS/ZnS nanocomposites. The PL position of ZnS and CdS compound is tuned in the visible region by the way of alteration layer thickness.
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Schedule a callMore From: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
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