Title

Spectroscopic Investigation Of Pr3+ Fluorapatite Crystals

Authors

Authors

A. O. Wright; M. D. Seltzer; J. B. Gruber; B. Zandi; L. D. Merkle;B. H. T. Chai

Comments

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Abbreviated Journal Title

J. Phys. Chem. Solids

Keywords

inorganic compounds; luminescence; crystal fields; optical properties; SITE-SELECTIVE SPECTROSCOPY; ENERGY-LEVELS; FIELD ANALYSIS; LASER; SPECTRA; IONS; FLUOROPHOSPHATE; LUMINESCENCE; ABSORPTION; APATITES; Chemistry, Multidisciplinary; Physics, Condensed Matter

Abstract

Spectroscopic data is presented for Pr3+-doped calcium fluorapatite (Ca-5(PO4)(3)F) and strontium fluorapatite (Sr-5(PO4)(3)F) crystals which were studied using polarized absorption and laser-induced fluorescence as optical probes. Complete tabulation of experimental energy levels is provided for strontium fluorapatite, where only one Pr3+ site, having C-s symmetry, is measurable. In calcium fluorapatite, at least three Pr3+ sites of appreciable concentration are evident, though the majority site is demonstrated to show similarity to the site in the strontium fluorapatite host. An unusually high crystal field splitting of Pr3+ energy levels is exhibited in both hosts. Intersite energy transfer, upconversion and cross relaxation are discussed for Pr3+ in the calcium fluorapatite crystal.

Journal Title

Journal of Physics and Chemistry of Solids

Volume

57

Issue/Number

9

Publication Date

1-1-1996

Document Type

Article

Language

English

First Page

1337

Last Page

1350

WOS Identifier

WOS:A1996VC87900022

ISSN

0022-3697

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