Original Paper

Physics and Chemistry of Minerals

, Volume 39, Issue 8, pp 639-648

Open Access This content is freely available online to anyone, anywhere at any time.

The luminescence properties of rare-earth ions in natural fluorite

  • M. CzajaAffiliated withFaculty of Earth Sciences, University of Silesia Email author 
  • , S. Bodył-GajowskaAffiliated withFaculty of Earth Sciences, University of Silesia
  • , R. LisieckiAffiliated withInstitute of Low Temperature and Structure Research, Polish Academy of Sciences
  • , A. MeijerinkAffiliated withDebye Institute, Ornstein Laboratory, University of Utrecht
  • , Z. MazurakAffiliated withCenter of Polymer and Carbon Materials, Polish Academy of Sciences

Abstract

For the first time, the luminescence properties of Pr3+, Nd3+ and Tm3+ and Yb3+ ions in fluorite crystal have been obtained by steady-state measurements. In addition, the luminescence spectra of Ce3+, Sm2+, Sm3+, Dy3+, Er3+ and Yb3+ were measured. It was pointed out that λexc. = 415 nm is most suitable for measuring the Ho3+ emission beside the Er3+. The emission of trivalent holmium and erbium ions was measured independently using time-resolved measurements and tentative assignment of luminescence lines to C 3v and C 4v symmetry sites was proposed. Besides for natural fluorite crystal, the transitions between Stark energy levels of lanthanide ions were presented.

Keywords

Photoluminescence Fluorite Rare-earth ions Stark energy levels