Fluorescent material and light-emitting device employing the same

Fluorescent material and light-emitting device employing the same

  • CN 102,161,888 A
  • Filed: 09/30/2010
  • Published: 08/24/2011
  • Est. Priority Date: 02/19/2010
  • Status: Active Application
First Claim
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1. method of making the oxynitride fluorescent material, described oxynitride fluorescent material is represented by following formula (1):

  • (M 1-xR x) 3-ySi 13-zAl 3+zO 2+uN 21-w (1) Wherein M is the element that is selected from IA family element, IIA family element, the IIIA family element except that Al, IIIB family element, rare earth element and the IVA family element except that Si;

    R is the element that is selected from Eu, Ce, Mn, Tb, Yb, Dy, Sm, Tm, Pr, Nd, Pm, Ho, Er, Cr, Sn, Cu, Zn, As, Ag, Cd, Sb, Au, Hg, Tl, Pb, Bi and Fe;

    And x, y, z, u and w are respectively and satisfy 0<

    x≤

    1 ,-0.1≤

    y≤

    0.15 ,-1≤

    z≤

    1 and-number of the condition of 1<

    u-w≤

    1.5;

    Said method comprising the steps of;

    The nitride or the carbide that mix described element M;

    The halogenide of described element M;

    The oxide compound of described element R, nitride or carbonate;

    The nitride of Si, oxide compound or carbide;

    And the nitride of Al, oxide compound or carbide, with the preparation material blends;

    Fire described material blends;

    And thenThe product that pickling is burnt till.

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