Persistent phosphor
First Claim
1. A phosphor of formula of Ax-y-z Al2-m-n-o-pO4:
- Euy, REz, Bm, Znn, Coo, Scp wherein;
A is Ba, Sr, Ca, or a combination of these metals;
x is between about 0.75 and 1.3;
y is between about 0.0005 and 0.1;
z is between about 0.0005 and 0.1;
m is between about 0.0005 and 0.30;
n is between about 0.0005 and 0.10;
o is between about 0 and 0.01;
p is between about 0 and 0.05; and
RE is Dy, Nd, or a combination thereof.
2 Assignments
0 Petitions
Accused Products
Abstract
A long-lived phosphor composition is provided, along with methods for making and using the composition. More specifically, in one embodiment, the phosphor comprises a material having a formula of Ax-y-zAl2-m-n-o-pO4:Euy, REz, Bm, Znn, Coo, Scp. In this formula, A may be Ba, Sr, Ca, or a combination of these metals, x is between about 0.75 and 1.3, y is between about 0.0005 and 0.1, z is between about 0.0005 and 0.1, m is between about 0.0005 and 0.30, n is between about 0.0005 and 0.10, o is between about 0 and 0.01 and p is between about 0 and 0.05. RE is Dy, Nd, or a combination thereof. In another embodiment, methods are provided for making persistent phosphors comprising the formulations above. Other embodiments provide applications for such a phosphor, comprising uses in toys, emergency equipment, clothing, and instrument panels, among others.
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Citations
6 Claims
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1. A phosphor of formula of Ax-y-z Al2-m-n-o-pO4:
- Euy, REz, Bm, Znn, Coo, Scp wherein;
A is Ba, Sr, Ca, or a combination of these metals; x is between about 0.75 and 1.3; y is between about 0.0005 and 0.1; z is between about 0.0005 and 0.1; m is between about 0.0005 and 0.30; n is between about 0.0005 and 0.10; o is between about 0 and 0.01; p is between about 0 and 0.05; and RE is Dy, Nd, or a combination thereof.
- Euy, REz, Bm, Znn, Coo, Scp wherein;
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2. An article of manufacture containing a phosphor, comprising:
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a structure; and a phosphor comprising a general formula of Ax-y-z Al2-m-n-o-pO4;
Euy, REz, BmZ nn, Coo, Scp, wherein;A is Ba, Sr, Ca, or a combination of these metals; x is between about 0.75 and 1.3; y is between about 0.0005 and 0.1; z is between about 0.0005 and 0.1; m is between about 0.0005 and 0.30; n is between about 0.0005 and 0.10; o is between about 0 and 0.01; p is between about 0 and 0.05; and RE is Dy, Nd, or a combination thereof; and the phosphor is incorporated into the material of the structure or into a film attached to the structure. - View Dependent Claims (3, 4, 5, 6)
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Specification