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Synthesis and Characterization of Zn-doped CuWO4 Nanoparticles and Their Opto-structural Properties

 

V.Balasubramaniana, S. Kannanb, T. Daniela, J. Henrya, K. Mohanraja

and G. Sivakumarc

 aDepartment of Physics, Manonmaniam Sundaranar University, Tirunelveli – 627 012, Tamil Nadu, India.

bDepartment of Physics, Excel Engineering College, Namakkal-637 303, Tamil Nadu, India.

cCISL, Department of Physics, Annamalai University, Annamalai Nagar – 608 002, Tamil Nadu, India.

 

Corresponding Author: K. Mohanraj                  Email: kmohanraj.msu@gmail.com

Doi: https://doi.org/10.47011/14.5.7

Cited by : Jordan J. Phys., 14 (5) (2021) 451-456

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Received on: 01/05/2020;                            Accepted on: 15/9/2020

Abstract: CuWO4 and Zn-doped CuWO4 nanoparticles were prepared by a solid-state reaction method. The XRD study confirms the triclinic crystal structure for both samples and the peak shift is noticed for Zn-doped CuWO4 particles with high crystallinity. The FTIR spectra show metal oxide vibration which arose from the CuWO4 and Zn-doped CuWO4 particles. The optical absorption spectra exhibit strong absorption in the visible region and the band gap of Zn-doped CuWO4 is found to be increased to 2.44 eV compared to that of CuWO4 (2.36 eV), which is due to the elevated conduction band levels after Zn-doping. The SEM images of both CuWO4 and Zn-doped CuWO4 nanoparticles show densely aggregated particles.

Keywords: Copper tungstate, Zn-doped CuWO4, Absorption, Nanoparticles.

 

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