Magnetic, Structural And Optical Properties Of Nickel Doped Zinc Sulphide Nanoparticles

A. Maria Bernadette Leena¹ , K.Raji ²

Section:Research Paper, Product Type: Isroset-Journal
Vol.7 , Issue.3 , pp.17-21, Jun-2019

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i3.1721

Online published on Jun 30, 2019

Copyright © A. Maria Bernadette Leena , K.Raji . 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 wide bandgap metal sulfide semiconductors, such as ZnS when doped with transition metal ion Ni2+ have shown promises in versatile applications such as spintronics devices, solar energy conversion, optoelectronics, and photonics. Nickel doping leads to substantial modification in technology for ZnS semiconductors, as it suitably tunes the optical, electrical and magnetic properties of materials. Here 2%, 4%, and 6% of Nickel ion( (Ni2+)is doped with ZnS nanoparticles, which were synthesized via a simple chemical precipitation route. The resultant nanoparticles were characterized by FTIR, UV-Vis spectroscopy, XRD, Photo luminance, SEM, and VSM. The results showed that all the nickel-doped ZnS samples were successfully obtained with a cubic structure with crystallites in 4.5 nm to 5.5nm range. The band gap energies of the Nickel doped ZnS were also estimated by UV –visible absorbance spectra which is found to decrease with the increase of crystallite size. The SEM results showed the appearance cubic structure of the samples. The VSM study showed that these particles have room temperature ferromagnetism or superparamagnetism, essential for the discovery of new spintronic devices.

Key-Words / Index Term :
Nickel doped ZnS Chalcogenides, co-precipitation, optical properties and superparamagnetic

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