Luminescent body and optical device including the same

Luminescent body and optical device including the same

  • CN 1,729,268 B
  • Filed: 12/19/2003
  • Issued: 12/19/2012
  • Est. Priority Date: 12/20/2002
  • Status: Active Grant
First Claim
Patent Images

1. the twinkler that temperature stability is improved is characterized in that,Described twinkler is to comprise silicate-germanate and europium doped and the twinkler that improved temperature stability and fluorescence lifetime, and wherein said twinkler also comprises the doping agent of interpolation and is equivalent to following empirical formula:

  • M’

    aM”

    b(Si l-zGe z) c(Al,

    Ga,

    In) d(Sb,

    V,

    Nb,

    Ta) eO (a+b+2c+3d/2+5e/2-n/2)X n

    Eu x

    R y

    In said empirical formula,The element of more than one that M '"'"' expression is selected among the group of being made up of calcium (Ca), strontium (Sr), barium (Ba) and zinc (Zn);

    M " be more than one the element of among the group of forming by magnesium (Mg), cadmium (Cd), manganese (Mn) and beryllium (Be), selecting;

    R is more than one the element of selecting among the group of forming from La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Bi, Sn and Sb;

    X is the ion of selecting among the group of being made up of fluorine (F), chlorine (C1), bromine (Br) for the equilibrated of obtaining electric charge;

    Wherein0.5≤

    a≤

    8,

    0≤

    b≤

    5,

    0<

    c≤

    10,

    0<

    d≤

    2,

    0≤

    e≤

    2,

    0≤

    n≤

    4,

    0<

    x≤

    0.5,

    0<

    y≤

    0.5, and0<

    z<

    1,

    Wherein the gallium in germanium in the lattice silicate and the aluminate lattice produces lattice dilatation all smallly.

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