Spectroscopic Investigation Of Pr3+ Fluorapatite Crystals

    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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