(Barium hafnate: Cu) phosphors and phosphor screens

Details (Barium hafnate: Cu) phosphors and phosphor screens (Barium hafnate: Cu) phosphors and phosphor screens

1995-12-19

1997-12-16

Porta, David P.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

2523014F, C09K 1167

Patent

active

056988575

ABSTRACT:
(Barium halfnate:Cu) phosphors and phosphor screens. The phosphor screens include a support and a luminescent portion. The phosphor includes oxygen and a combination of species characterized by the relationship: (Ba.sub.1-q M.sub.q)(Hf.sub.1-z-e Zr.sub.z Mg.sub.e):yT where M is selected from the group consisting of Ca and Sr and combinations thereof; T is Cu; q is from 0 to 0.15; z is from 0 to 1; e is from 0 to 0.10; z+e is from 0 to 1; and y is from 1.times.10.sup.-6 to 0.02.

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