Highly efficient luminous substance

Details Highly efficient luminous substance Highly efficient luminous substance

2004-09-24

2009-06-23

Koslow, C. Melissa (Department: 1793)

Compositions

Inorganic luminescent compositions

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

C252S30160F, C257S098000, C313S503000

Reexamination Certificate

active

07550095

ABSTRACT:
Phosphor from the class of the oxynitridosilicates, having a cation M which is doped with divalent europium, and having the empirical formula M(1-c)Si2O2N2:Dc, where M=Sr or M=Sr(1-x-y)BayCaxwith x+y<0.5, the oxynitridosilicate completely or predominantly comprising the high-temperature-stable modification HT.

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W.H. Zu, et al., “Phase relationships in the Sr-Si-O-N system”, Journal of Materials Science Letters vol. 13, pp. 560-562, 1994.
J. van Krevel, “On new rare-earth doped M-Si-Al-O-N materials”, Chapter 6, pp. 73-87, 2000.

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