Luminance behavior of Ce³⁺ doped ZnS nanostructures

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• 作者：N. Shanmugam ; S. Cholan ; N. Kannadasan ; K. Sathishkumar ; G. Viruthagiri
• 关键词：ZnS nano structure ; Flowerlike structure ; FESEM ; HRTEM ; EDS
• 刊名：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
• 出版年：24 January, 2014
• 年：2014
• 卷：118
• 期：Complete
• 页码：557-563
• 全文大小：2091 K

文摘

We report the synthesis and characterization of undoped and various levels of Ce³⁺ 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 Ce³⁺ 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 Ce³⁺ 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).