Garnet phosphor materials having enhanced spectral...

Details Garnet phosphor materials having enhanced spectral... Garnet phosphor materials having enhanced spectral...

2007-08-07

2007-08-07

Koslow, C. Melissa (Department: 1755)

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

C313S503000, C257S098000, C252S30140F, C252S30160F, C252S30140H, C252S30140P, C252S30160P, C252S30140S, C252S301500

Reexamination Certificate

active

10910991

ABSTRACT:
Phosphor compositions having the formula (Y1-x-y-zTbxGdyCez)3(M1M2)t(Al1-r-sGarIns)A-2tO12+D, where M1is Mg or Zn, M2is Si or Ge, 0<x+y<1, 0.01<z<0.1, 0.1<t<1.5, 0<r, s<0.5, 4.5<A<5.0, and −1<D<1. Also disclosed are light emitting devices including a light source and at least one phosphor having the above formula. Such phosphors exhibit a deeper red emission when compared to conventional TAG phosphors, allowing the production of white light sources having improved properties.

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