White-light-emission Afterglow Phosphor CaZnGe_2O_6:Dy^<3+>

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A novel phosphor, CaZnGe<SUB>2</SUB>O<SUB>6</SUB>:Dy<SUP>3+</SUP>, which emits white long-lasting phosphorescence (LLP) upon UV excitation, is prepared by a conventional high-temperature solid-state method, and its luminescent properties are systematically reported in this letter. These phosphors are well crystallized by calcination at 1150 °C for 3 h and possess excellent performance. After irradiation under 240-nm UV light, CaZnGe<SUB>2</SUB>O<SUB>6</SUB>:2% Dy<SUP>3+</SUP> emits intense white emission with color coordinate values of <I>x</I>=0.36, <I>y</I>=0.39, and its afterglow can be seen with the naked eye in the dark clearly for more than 3 h after removal of the excitation source.

収録刊行物

  • Chemistry letters

    Chemistry letters 37(2), 136-137, 2008-02-05

    The Chemical Society of Japan

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各種コード

  • NII論文ID(NAID)
    10021077164
  • NII書誌ID(NCID)
    AA00603318
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    03667022
  • データ提供元
    CJP書誌  J-STAGE 
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