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

Hisanori Yamane, Tetsuya Kawano

    研究成果: Article査読

    7 被引用数 (Scopus)

    抄録

    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.

    本文言語English
    ページ(範囲)965-970
    ページ数6
    ジャーナルJournal of Solid State Chemistry
    184
    5
    DOI
    出版ステータスPublished - 2011 5

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • セラミックおよび複合材料
    • 凝縮系物理学
    • 物理化学および理論化学
    • 無機化学
    • 材料化学

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