Preparation, crystal structure and photoluminescence of garnet-type calcium tin titanium aluminates

Hisanori Yamane, Tetsuya Kawano

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)


    Colorless and transparent single crystals of Ca3Sn 2.2Ti0.8Al2O12, which emit bluewhite light under ultraviolet light, were prepared by heating a mixture of oxides and calcium carbonate with a calcium and aluminum-rich composition at 1500 °C. Single crystal X-ray diffraction revealed that the crystal structure is the garnet-type with a cubic cell parameter (a=12.5309(3) Å) and the space group, Ia 3̄d (R1=0.0277, wR2=0.0663, and S=1.367 for all data). The structural formula is presented as Ca3[Sn0.96Ti 0.04]octa[Al0.67Ti0.24Sn 0.09]tetraO12. Polycrystalline solid solutions of Ca3Sn3-xTixAl2O12 were prepared by solid state reaction in air at 1370 °C with nominal titanium contents from x=0.6 to 1.4. The refined unit cell parameter decreased with increasing x. A broad bluewhite emission with a peak wavelength of 465 nm was observed for the solid solutions at room temperature.

    Original languageEnglish
    Pages (from-to)965-970
    Number of pages6
    JournalJournal of Solid State Chemistry
    Issue number5
    Publication statusPublished - 2011 May


    • Garnet structure
    • Photoluminescence spectra
    • Rietveld refinement
    • Single crystal
    • X-ray diffraction

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Ceramics and Composites
    • Condensed Matter Physics
    • Physical and Theoretical Chemistry
    • Inorganic Chemistry
    • Materials Chemistry


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