Luminescence behavior of Eu3+ doped LaF3 nanoparticles

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

  • Daibo Pi
  • Feng Wang
  • Xianping Fan
  • Minquan Wang
  • Yong Zhang

Detail(s)

Original languageEnglish
Pages (from-to)2455-2459
Journal / PublicationSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume61
Issue number11-12
Publication statusPublished - Sep 2005
Externally publishedYes

Abstract

Europium-doped LaF3 nanoparticles have been prepared by the ionic reaction in the ethanol at 60 °C. From the XRD pattern of nanoparticles and the emission spectra of Eu3+ ions, it has been concluded that the Eu3+ ions could easily substitute the La 3+ sites and the solid solution La1-xEuxF 3 can be synthesized. Due to very low phonon energies of LaF 3 matrix, the 5D1 emission of Eu3+ ions in La1-xEuxF3 nanoparticles can be observed at room temperature when doping concentration of Eu3+ ions is lower than 30 mol%. The quenching process of 5D1 emission can be attributed to cross-relaxation. Since clusters of Eu 3+ ions and resonance energy transfer only occurs within one particle due to the hindrance by the particle boundary, the concentration quenching resulted from resonance energy transfer between neighboring Eu 3+ ions occurs at higher Eu3+ concentrations in the Eu3+ doped LaF3 nanoparticles. © 2004 Elsevier B.V.

Research Area(s)

  • Eu3+ ions, LaF3 nanoparticles, Luminescence

Citation Format(s)

Luminescence behavior of Eu3+ doped LaF3 nanoparticles. / Pi, Daibo; Wang, Feng; Fan, Xianping; Wang, Minquan; Zhang, Yong.

In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 61, No. 11-12, 09.2005, p. 2455-2459.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review