Luminescence behavior of the europium (III) complexes with hexafluoracetylacetonate in the ORMOSIL matrices

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)147-151
Journal / PublicationMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume100
Issue number2
Publication statusPublished - 15 Jul 2003
Externally publishedYes

Abstract

The luminescence behavior of the europium (Eu) complexes with hexafluoracetylacetonate (HFA:Eu3+ complexes) in the ORMOSIL matrices has been investigated. The steady-state excitation and emission spectra of the 1 mol.% EuCl3 and the 3 mol.% hexafluoracetylacetonate (HFA) co-doped gel were similar to that of the HFA:Eu3+ complexes powders which were synthesized in ethanol solution, which indicated that the HFA:Eu3+ complexes have been synthesized in the 1 mol.% EuCl3 and the 3 mol.% HFA co-doped gel. The time-resolved spectra of the 1 mol.% EuCl3 and 3 mol.% HFA co-doped gel exhibited the ligand-to-metal energy transfer process, which also confirmed the synthesis of the HFA:Eu3+ complexes in the 1 mol.% EuCl3 and 3 mol.% HFA co-doped gel. The decay curves of the luminescence 5D0 state obtained by monitoring the 5D07F2 emission line for the HFA:Eu3+ complexes powders and for the 1 mol.% EuCl3 and 3 mol.% HFA co-doped gel could both be fitted to a single-exponential fitting function. The temperature of heat treatment has significant influence on the luminescence behavior of the 1 mol.% EuCl3 and 3 mol.% HFA co-doped gel. The luminescence intensities of the 1 mol.% EuCl3 and 3 mol.% HFA co-doped gel reached a maximum at approximately 110 °C and decreased gradually with increasing temperature. However, the 5D0 excited-state lifetimes of the Eu3+ ions in the 1 mol.% EuCl3 and 3 mol.% HFA co-doped gels increased gradually with increasing temperature. © 2003 Elsevier Science B.V. All rights reserved.

Research Area(s)

  • Lanthanide complexes, Luminescence, Sol-gel process

Citation Format(s)

Luminescence behavior of the europium (III) complexes with hexafluoracetylacetonate in the ORMOSIL matrices. / Fan, Xianping; Li, Wei; Wang, Feng et al.
In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 100, No. 2, 15.07.2003, p. 147-151.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review