PERSISTENT PHOSPHOR
First Claim
Patent Images
1. A phosphor of formula I
AxAlyO4:
- Euj,REk,Bm,Znn,Coo,Scp
Iwherein;
A is Ba, Sr, Ca, or a combination of these metals;
x is greater than about 0.75 and less than about 1.3;
y is greater than or equal to about 1.6 and less than or equal to 2;
j is greater than about 0.0005 and less than about 0.1;
k is greater than about 0.0005 and less than about 0.1;
m is greater than or equal to 0 and less than about 0.30;
n is greater than 0 and less than about 0.10;
o is greater than 0 and less than about 0.01;
p is greater than 0 and less than about 0.05; and
RE is Dy, Nd, or a combination thereof.
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Accused Products
Abstract
A persistent phosphor of formula I is provided, along with methods for making and using the phosphor:
AxAlyO4:Euj,REk,Bm,Znn,Coo,Scp I
wherein:
- A is Ba, Sr, Ca, or a combination of these metals;
- x is greater than about 0.75 and less than about 1.3;
- y is greater than or equal to about 1.6 and less than or equal to 2;
- j is greater than about 0.0005 and less than about 0.1;
- k is greater than about 0.0005 and less than about 0.1;
- m is greater than or equal to 0 and less than about 0.30;
- n is greater than 0 and less than about 0.10;
- o is greater than 0 and less than about 0.01;
- p is greater than 0 and less than about 0.05; and
- RE is Dy, Nd, or a combination thereof.
Applications for such phosphors include use in toys, emergency equipment, clothing, and instrument panels, among others.
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Citations
18 Claims
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1. A phosphor of formula I
AxAlyO4:- Euj,REk,Bm,Znn,Coo,Scp
Iwherein; A is Ba, Sr, Ca, or a combination of these metals; x is greater than about 0.75 and less than about 1.3; y is greater than or equal to about 1.6 and less than or equal to 2; j is greater than about 0.0005 and less than about 0.1; k is greater than about 0.0005 and less than about 0.1; m is greater than or equal to 0 and less than about 0.30; n is greater than 0 and less than about 0.10; o is greater than 0 and less than about 0.01; p is greater than 0 and less than about 0.05; and RE is Dy, Nd, or a combination thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- Euj,REk,Bm,Znn,Coo,Scp
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10. An article of manufacture comprising a phosphor of formula I
AxAlyO4:- Euj,REk,Bm,Znn,Coo,Scp
Iwherein; A is Ba, Sr, Ca, or a combination of these metals; x is greater than about 0.75 and less than about 1.3; y is greater than or equal to about 1.6 and less than or equal to 2; j is greater than about 0.0005 and less than about 0.1; k is greater than about 0.0005 and less than about 0.1; m is greater than or equal to 0 and less than about 0.30; n is greater than 0 and less than about 0.10; o is greater than 0 and less than about 0.01; p is greater than 0 and less than about 0.05; and RE is Dy, Nd, or a combination thereof. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
- Euj,REk,Bm,Znn,Coo,Scp
Specification