Studies on the effect of Ni & Ba co-doping on CdS nano structures

K.Kasirajan ¹ , M.Karunakaran ² , N.Subhalakshmi ³ , S.Prabakaran ⁴

Section:Research Paper, Product Type: Isroset-Journal
Vol.7 , Issue.3 , pp.151-155, Jun-2019

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.151155

Online published on Jun 30, 2019

Copyright © K.Kasirajan, M.Karunakaran, N.Subhalakshmi , S.Prabakaran . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The pure and various metals (Ni and Ba) doped Cadmium Sulphide (CdS) nano particles were successfully synthesized by chemical co-precipitation method using analytical grade Cadmium Chloride and Sodium Sulphide chemicals. The prepared samples were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), and Optical absorption (UV- Vis) studies. The XRD results showed that the all prepared samples were polycrystalline with hexagonal structure. The peaks were identified and compared with JCPDS (File No. 89-2944) values. From the SEM studies, the particles agglomerations are decreased by the addition of metal dopants and the average grain size of the particles are found in the range 500 nm. The optical properties have been characterized. The obtained band gap values are 2.56 eV, 2.54 eV, 2.35 eV and 2.48 eV. The band gap is reduced and the crystallization is increased in the Ni and Ba doped CdS nano particles are more suitable for fabrications of Opto electronic studies.

Key-Words / Index Term :
Cadmium Sulphide, Nano particles, X-ray diffraction, Scanning Electron Microscope, Optical studies

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