Method of making red-emitting borate phosphor

Details Method of making red-emitting borate phosphor Method of making red-emitting borate phosphor

2008-02-13

2010-12-07

Koslow, C. Melissa (Department: 1734)

Compositions

Inorganic luminescent compositions

Zinc or cadmium containing

C252S30140R

Reexamination Certificate

active

07846354

ABSTRACT:
There is described a method of producing a red-emitting manganese and cerium co-activated gadolinium magnesium zinc pentaborate phosphor that comprises combining a hydrated hexaborate of zinc, magnesium, and manganese with oxides of Gd and Ce to form a mixture, and firing the mixture in a slightly reducing atmosphere to form the phosphor. Preferably, the hydrated hexaborate has an approximate composition represented by (Zn,Mg,Mn)B6O10.XH2O, where X is 5.3 to 6.2.

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U.S. Appl. No. 12/030,374, filed Feb. 13, 2008.
U.S. Appl. No. 12/030,247, filed Feb. 13, 2008.

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