Abstract
Europium doped CaS nanophosphors capped with polyethylene glycol (PEG) have been synthesized by a low temperature wet chemical coprecipitation method. Multiple characterization techniques including X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy (TEM), photoluminescence (PL) and UV-Vis absorption spectroscopy were employed to study the structure, morphology and luminescence properties of CaS:Eu nanophosphors. The PL emission was obtained in the yellow region with peaks attributed to 5D0 - 7FJ(J= 0,1,2,3,…) electronic transitions of Eu3+ ions incorporated into the CaS host lattice. Hence PEG capped CaS:Eu nanoparticles could be used as a potential luminescent material for various optoelectronic applications.
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