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Ni-W-codoping effects on the optical and structural properties of SnO2 nanoparticles

A. A. DAKHEL1,*

Affiliation

  1. Department of Physics, College of Science, University of Bahrain, P.O. Box 32038, Zallaq, Kingdom of Bahrain

Abstract

Nanoparticles (NPs) of tin oxide codoped with Ni/W ions were synthesized by a co-precipitation technique. The Ni ions molar concentration was fixed at 5% while that of the W ions was varied as, 1.5%, 2.5%, and 3.5%. The present investigation was aimed to study the effect of W doping level on the structural and optical properties of the NPs. The X-ray fluorescence (XRF) technique was performed to check the purity of the nanocrystalline samples. The crystalline structure was investigated by X-ray diffraction (XRD). The results indicate that the Ni/W ions were dissolved in SnO2 lattice forming a solid solution. The variation of the optical bandgap (Eg) of the host SnO2 NPs was measured by the diffuse reflectance spectroscopy (DRS) as a function of W% doping level. The bandgap was red-shifted that improve the photocatalytic activity under visible light illumination..

Keywords

Ni/W codoped SnO2; TCO; nano particles.

Submitted at: July 4, 2022
Accepted at: Feb. 12, 2024

Citation

A. A. DAKHEL, Ni-W-codoping effects on the optical and structural properties of SnO2 nanoparticles, Journal of Optoelectronics and Advanced Materials Vol. 26, Iss. 1-2, pp. 50-53 (2024)