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

1992-10-22

1993-12-07

Cooper, Jack

Compositions

Inorganic luminescent compositions

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

2523016P, C09K 1173

Patent

active

052681246

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.

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