Secondary excitation type yellowish green fluorescent powder and preparation method thereof

Secondary excitation type yellowish green fluorescent powder and preparation method thereof

  • CN 102,703,078 A
  • Filed: 06/25/2012
  • Published: 10/03/2012
  • Est. Priority Date: 06/25/2012
  • Status: Active Grant
First Claim
Patent Images

1. secondary excitation type yellow-green fluorescence powder is characterized in that the Sr that consists of of fluorescent material X-a-cAl 3+2x-zY 5-b-yRE yM zO 12+4x:

  • aEu 2+, bCe 3+, cDy 3+, wherein RE is at least a among Tb, Gd, the Lu;

    M is at least a among Ga, Zn, Ge, the Si;

    0<

    x<

    10;

    0<

    y<

    1;

    0<

    z<

    1;

    0<

    a<

    0.8;

    0<

    b<

    0.5;

    0<

    c<

    0.5.

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