Luminescence behavior of Eu3+ doped LaF3 nanoparticles
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 2455-2459 |
Journal / Publication | Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy |
Volume | 61 |
Issue number | 11-12 |
Online published | 21 Nov 2004 |
Publication status | Published - Sept 2005 |
Externally published | Yes |
Link(s)
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 La3+ sites and the solid solution La1-xEuxF3 can be synthesized. Due to very low phonon energies of LaF3 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 Eu3+ 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 Eu3+ 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 et al.
In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 61, No. 11-12, 09.2005, p. 2455-2459.
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 - Publication in refereed journal › peer-review