Erbium doped Barium Tungstate-Chitosan Nanocomposite: Luminescent Properties

Document Type : Original Article

Authors

1 Department of Nanotechnology, Semnan University, Semnan, Iran P.O. Box: 35131-19111

2 Faculty of Physics, Semnan University, P.O. Box:35195‑363, Semnan, Iran

Abstract

Recently, there has been an increase in the ability to adjust the optical band gap and enhance the brightness of luminescence in nanophosphors that are used in light-emitting diodes and detectors. In this study, a flexible nanocomposite of erbium-doped barium tungstate (BaWO4:Er-1at.%) thin film was  synthesized via co-precipitation method, and the structural and luminescence properties were investigated. The effect of excitation wavelength ( ) was studied on the optical properties of the synthesized composite at room temperature. Doped nanocomposite  showed the best visible emission in the blue-green range at excitation wavelength =250) of a xenon lamp and a strong violet emission under 980 nm laser excitation. The XRD results verified the presence of BWO, in the chitosan composite structure. FESEM images showed that the prepared hybrid nanocomposite's surface was smooth, consistent, and compact; The Er:BWO particles exhibited a flower-like morphology. These findings demonstrate the potential for employing this nanocomposite in the fabrication of high-performance optoelectronic devices.

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© 2023 The Author(s). Journal of Progress in Physics of Applied Materials published by Semnan University Press. This is an open access article under the CC-BY 4.0 license. (https://creativecommons.org/licenses/by/4.0/)

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Progress in Physics of Applied Materials
Volume 3, Issue 2 - Serial Number 5
December 2023
Pages 119-123

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History

  • Receive Date: 16 September 2023
  • Revise Date: 26 October 2023
  • Accept Date: 18 November 2023

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