Optical Properties of CdZnS Thin Film by CBD Method

Abstract Using chemical bath deposition (CBD) technique, (Cd-Zn)S:CdCl2 thin films were prepared on glass substrates.  Room temperature photoluminescence analysis in the 400-700 nm emission wavelength ranges for the excitation energies 365nm show the ‘well known’ green emission band related to exciton-donor complexes formed in presence of S / excess Cd are observed in the PL emission spectra of various rare earth doped  (Cd-Zn)S:CdCl2  films. In doped films, characteristic emissions of lanthanide such as Ce are observed. Some properties related to nanocrystalline effects are also found. The influence of variation of ratio of cadmium and sulphur was studied on the PL emission intensity of (Cd-Zn)S:CdCl2  thin films. In a selected ratio of cadmium and sulphur for which emission intensity was highest, the effect of impurity concentration on PL emission intensity was studied.

Keywords Photoluminescence, Chemical Bath Deposition, Thin Films, CdS.

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Influence of the Cryogenic Treatment in Micro Structure, hardness and Micro hardness of the Brass 60-40 and Bronze SAE 64

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