High-quantum efficiency, long-lived luminescing refractory oxide

Details High-quantum efficiency, long-lived luminescing refractory oxide High-quantum efficiency, long-lived luminescing refractory oxide

1982-12-07

1984-01-24

Edmundson, F.

Compositions

Inorganic luminescent compositions

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

423636, 423640, C09K 1112, C01F 500

Patent

active

044275706

ABSTRACT:
A crystal having a high-quantum efficiency and a long period of luminescence is formed of an oxide selected from the group consisting of magnesium oxide and calcium oxide and possessing a concentration ratio of H.sup.- ions to F centers in the range of about 0.05 to about 10.

REFERENCES:
patent: 636865 (1899-11-01), Straub
patent: 3829391 (1974-08-01), Chen et al.
Point Defects in Solids by Crawford et al., vol. 1, pp. 430-435 pub. by Plenum Press, New York (1972).
Edel et al., J. Phys. C.; Solid State Phys., vol. 12 pp. 5245-5252 (1979).
Gonzalez et al., Phys. Rev. B, vol. 24, No. 12, pp. 6862-6868 (Dec. 15, 1981).
Henderson et al., Phys. Rev., vol. 183, No. 3 pp. 826-831 (Jul. 13, 1969).
Welch et al., J. Phys. C.; Solid St. Phys, vol. 13, pp. 1791-1804 (1980).
Jeffries et al., Physical Rev. B, vol. 25, No. 3, pp. 2077-2080, Feb. 1, 1982.

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