245
Views
1
CrossRef citations to date
0
Altmetric
Articles

Structural, optical, and magnetic properties of pristine and Cr doped WO3 nanoparticles

, , , &
Pages 951-960 | Received 02 Dec 2020, Accepted 25 Nov 2021, Published online: 07 Jan 2022
 

Abstract

WO3 nanoparticles doped with chromium were prepared via acid-assisted precipitation method. These nanoparticles were characterized by XRD, FTIR, Raman, UV-DRS, SEM-EDS and photoluminescence (PL) spectral techniques. The XRD peaks confirmed the monoclinic arrangement with decrease in crystallite size on increasing the dopant concentration. The surface characterizations exposed the doping of chromium ions within the host lattices of WO3. From the SEM images, it can be noticed that doping changes the morphology of WO3 nanoparticles. The structure and crystal quality were studied by FTIR and Raman spectra. The absorption spectra reveals that the optical band gap energy is reduced after doping and there is rise in Urbach energies on increasing the Cr concentration. The PL spectra give an insight of increasing numbers of oxygen vacancies in WO3 after doping. The M–H hysteresis loops reveal that the ferromagnetic character is enhanced on low dopant concentration while at higher dopant concentrations, antiferromagnetism (FM) dominates.

Acknowledgments

The authors are thankful to the Nanotechnology Research Centre (NRC), SRM Institute of Science and Technology, Chennai for providing VSM facility.

Disclosure statement

The authors declare there are no conflicts of interest.

Log in via your institution

Log in to Taylor & Francis Online

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 61.00 Add to cart

Issue Purchase

  • 30 days online access to complete issue
  • Article PDFs can be downloaded
  • Article PDFs can be printed
USD 674.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.