A Study of the Optical Properties of Sm-doped ZnWO4 Synthesized by Hydrothermal Method

Nguyen Manh Hung, Nguyen Manh An, Nguyen Van Minh
Author affiliations

Authors

  • Nguyen Manh Hung
  • Nguyen Manh An
  • Nguyen Van Minh

DOI:

https://doi.org/10.15625/0868-3166/22/2/353

Keywords:

Sm doped ZnWO4 nanoparticles, Raman spectroscopy, absorption, photoluminescence

Abstract

The ZnWO4:Sm3+ compounds were prepared by hydrothermal method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman scattering, absorption and photoluminescent (PL) techniques. This rare earth material presents high orange luminescence intensity under UV radiation. The excitation spectra of the compound presented broad bands arising from ligand-to-metal charge transfer (LMCT) (O®W and O®Sm3+) and narrow bands from 4f-intraconfigurational transitions. The emission spectra exhibited the 4G5/2®6HJ (J = 5/2, 7/2, 9/2 and 11/2) transition (direct excitation), for the system doped with Sm3+, while a broad band assigned to the LMCT (O®W) is observed when the excitation is monitored on the O®W LMCT state.

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Published

01-08-2012

How to Cite

[1]
N. M. Hung, N. M. An and N. V. Minh, A Study of the Optical Properties of Sm-doped ZnWO<sub>4</sub> Synthesized by Hydrothermal Method, Comm. Phys. 22 (2012) 147. DOI: https://doi.org/10.15625/0868-3166/22/2/353.

Issue

Vol. 22 No. 2 (2012)

Section

Papers

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Received 29-12-2011
Published 01-08-2012

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