Method of making alkaline earth metal halophosphate phosphor usi

Details Method of making alkaline earth metal halophosphate phosphor usi Method of making alkaline earth metal halophosphate phosphor usi

1993-08-09

1994-09-27

Cooper, Jack

Compositions

Inorganic luminescent compositions

Zinc or cadmium containing

C09K 1173

Patent

active

053505409

ABSTRACT:
Metal phosphide used as a raw material in the synthesis of alkaline earth metal halophosphate phosphor activated by antimony and manganese acts as a reducing agent to prevent oxidation of the antimony and manganese. The result is maximum availability of trivalent antimony and divalent manganese for incorporation into the phosphor lattice.

REFERENCES:
patent: 2691601 (1954-10-01), Butler et al.
patent: 3378499 (1968-04-01), Hickok
patent: 3430089 (1969-02-01), Sarver et al.
patent: 4897217 (1990-01-01), Jackson et al.
patent: 5268124 (1993-12-01), Chau

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