Terbium or europium activated highly charged fluoropholopite pho

Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides

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2523014P, 2523014F, C09K 1161, C09K 1159

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active

056561997

ABSTRACT:
Inorganic intercalation phosphors having either the general formula Na.sub.2 (Mg.sub.3-x Tb.sub.x) Al.sub.2 Si.sub.2 O.sub.10 F.sub.2 or Na.sub.2 Mg.sub.3 {(Al.sub.2-x Eu.sub.x)Si}O.sub.10 F.sub.2, were made by doping an inorganic, intercalation, highly charged fluorophlogopite compound having an atomic structure interspersed with vacant spaces with selected activator ions such as terbium or europium capable of luminescent emission when excited by external radiation such as cathode rays.

REFERENCES:
patent: 5597511 (1997-01-01), Cox et al.

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