Advanced phosphors
AssigneeThe Regents of the University of California
InventorsXiao-Dong Xiang, Xiaodong Sun, Peter G. Schultz
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Abstract
This invention relates to new phosphor materials and to combinatorial methods of synthesizing and detecting the same. In addition, methods of using phosphors to generate luminescence are also disclosed.
Claims10
A phosphor having the empirical formula
- (Gd.sub.2-a Zn.sub.a)O.sub.3-.delta. :EU.sup.3+.sub.b
- wherein about 0.0<a<about 2.0;
- about 0.0<b<about 0.02;
- and 0.ltoreq..delta..ltoreq.1.
A phosphor wherein said phosphor is a member selected from the group consisting of (Gd.sub.0.5 Sr.sub.0.4)AlO.sub.3+.delta. :Eu.sup.2+.sub.0.1, and (La.sub.0.5 Sr.sub.0.4)AlO.sub.3+.delta. :Eu.sup.2+.sub.0.1 wherein 0.ltoreq..delta..ltoreq.1.
A phosphor having the empirical formula
- LnAlO.sub.p F.sub.s :Activator.sub.t
- wherein Ln is a member selected from the group consisting of La.sub.m Sr.sub.n and Gd.sub.m Sr.sub.n ;
- Activator is a member selected from the group consisting of Eu.sup.2+, Eu.sup.3+, Tb.sup.3+, Ce.sup.3+ and mixtures thereof;
- the sum of (p+s) is 3+.delta.;
- 0<m.ltoreq.1;
- p is greater than or equal to zero;
- s is greater than or equal to zero;
- 0<n<1;
- 0.ltoreq..delta..ltoreq.1;
- and
- 0<t<1.
A phosphor wherein said phosphor is a member selected from the group consisting of La.sub.0.43 Sr.sub.0.24 Al.sub.1.33 O.sub.p :Eu.sup.2+.sub.0.10, (Gd.sub.0.40 Sr.sub.0.31)Al.sub.1.23 O.sub.p F.sub.1.38 :Eu.sup.2+.sub.0.06 and Gd.sub.0.59 Sr.sub.0.18 Al.sub.1.23 O.sub.p :Eu.sup.2+.sub.0.06.
Dependencies are inferred from the claim text.