Red emitting phosphors

Details Red emitting phosphors Red emitting phosphors

1975-05-19

1976-06-22

Cooper, Jack

Compositions

Inorganic luminescent compositions

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

2523014F, C09K 1130

Patent

active

039650316

ABSTRACT:
This application relates to red emitting phosphors of the formula Li.sub.1.sub.-x Ca.sub.2x Al.sub.5.sub.-x O.sub.8 :Fe.sup.+.sup.3 or LiCa.sub.x Al.sub.5.sub.-2x Si.sub.x O.sub.8 :Fe.sup.+.sup.3 wherein 0.005.ltoreq.x.ltoreq.0.25. These phosphors may be used in fluorescent lamps or in cathodoluminescent screens for cathode-ray tubes where red emission is desired.

REFERENCES:
patent: 3836477 (1974-09-01), Lagos
patent: 3838060 (1974-09-01), Kaduk
mochel "J. of the Electrochem. Soc." pp. 398-399, 1966
Jaffe "J. of the Electrochem. Soc." pp. 1203-1205, 1968.

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