Optical properties of trivalent terbium doped calcium fluorapatite

M. Tachihante, D. Zambon*, A. Arbus, M. Zahir, A. Sadel, J. C. Cousseins

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The fluorescence of the Tb3+ ion in the apatite Ca10-2xNaxTbxF2(PO4)6 (0 ≤ x ≤ 2) is reported. The active ion is quasi exclusively located in the Cs site of the apatitic structure. Non radiative de-excitation from the 5D3 level to the 5D4 can be explained using cross-relaxation; the process is well described using the Inokuti and Hirayama model for a dipole-quadrupole interaction, leading to a Tb3+ critical concentration of 2.9% and to a critical distance of 1.21 nm. Moreover, at room temperature, phonons play a role in the 5D35D4 relaxation, with a very weak probability.

Original languageEnglish
Pages (from-to)605-613
Number of pages9
JournalMaterials Research Bulletin
Volume28
Issue number6
DOIs
StatePublished - Jun 1993
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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