Synthesis, crystal structure and luminescent properties of titanium(IV)-doped calcium borostannates, CaSn1-xTix(BO3)2

Tetsuya Kawano, Hisanori Yamane

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    13 Citations (Scopus)

    Abstract

    Compounds in the CaO-B2O3-SnO2 system were prepared by solid-state reaction at 700-1100 °C in air. The phase relations in this system were investigated by powder X-ray diffraction (XRD). A previously reported calcium borostannnate, CaSn(BO3)2 (rhombohedral, R over(3, -) (No. 148), Z = 3, a = 4.85872(3), c = 16.07750(11) Å), was synthesized in this system. Titanium(IV)-doped solid solutions, CaSn1-xTix(BO3)2 (0 < x < 0.30), were prepared, and their cell parameters were refined by the Rietveld method. A broad blue-green emission at 489 nm was observed in the photoluminescence (PL) spectra of CaSn1-xTix(BO3)2. The maximum emission intensity was measured for CaSn0.99Ti0.01(BO3)2. The PL excitation peak of CaSn0.99Ti0.01(BO3)2 was observed at 263 nm (4.71 eV).

    Original languageEnglish
    Pages (from-to)443-447
    Number of pages5
    JournalJournal of Alloys and Compounds
    Volume490
    Issue number1-2
    DOIs
    Publication statusPublished - 2010 Feb 4

    Keywords

    • Crystal structure
    • Phase relation
    • Photoluminescence
    • Powder X-ray diffraction
    • Solid-state reaction
    • Titanium(IV)-doped calcium borostannates

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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