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Nanostructured ZnCdS thin films with variable thickness and high transparency were deposited under variable growth parameters on optical glass platelets, using chemical bath deposition. UV-VIS absorption/reflection spectroscopy, X-ray diffraction, fluorescence spectroscopy, electron microscopy investigations (SEM, EDX) were used to investigate the effect of growth and annealing regime on the films morphology and optical properties. The luminescence properties of copper activated ZnCdS thin films were also investigated. The deposition conditions (medium pH, reagent molar ratio, deposition time) and the presence of the doping ions (copper) influence the morpho-structural properties and optical characteristics of the nanocrystalline zinc-cadmium sulfide thin films.