Luminance behavior of Ce3+ doped ZnS nanostructures.

Spectrochim Acta A Mol Biomol Spectrosc

Department of Physics, Annamalai University, Annamalai Nagar, Chidambaram 608 002, Tamilnadu, India. Electronic address:

Published: January 2014

We report the synthesis and characterization of undoped and various levels of Ce(3+) doped ZnS nanocrystal. The structure and size of the products were studied by X-ray diffraction (XRD). The existence of functional groups was identified by Fourier transform infrared spectrometry (FT-IR). The UV-Visible measurements reveal that the synthesized products are blue shifted when compared with bulk phase of ZnS as a result of quantum confinement effect. The PL studies show an enhancement in the intensity of emission band in the UV region on increased Ce(3+) doping. The morphology of the products was evaluated by Field emission scanning electron microscope (FESEM) and High resolution transmission electron microscopy (FESEM). The presence of Ce(3+) was confirmed by Energy dispersive spectral analysis (EDS). The thermal stability of pure and doped products was analyzed by thermo gravimetric and differential thermal analysis (TG-DTA).

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http://dx.doi.org/10.1016/j.saa.2013.09.012DOI Listing

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