Method for making a calcium halophosphate phosphor

Details Method for making a calcium halophosphate phosphor Method for making a calcium halophosphate phosphor

1993-12-06

1995-09-05

Bell, Mark L.

Compositions

Inorganic luminescent compositions

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

2323014H, C09K 1173

Patent

active

054476607

ABSTRACT:
The method of this invention provides calcium halophosphate phosphors activated with antimony and manganese having higher quantum efficiencies at specific antimony concentrations. The higher quantum efficiencies are obtained as a result of increasing the phosphor's UV reflectivity by decreasing the phosphor's particle size without substantially decreasing the phosphor's emission.

REFERENCES:
patent: 3099627 (1963-07-01), Mooney et al.
patent: 3549553 (1970-12-01), Wachtel
patent: 3940343 (1976-02-01), Demarest et al.
patent: 4897217 (1990-01-01), Jackson et al.
patent: 5268124 (1993-12-01), Chau
patent: 5336437 (1994-08-01), McSweeney

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