Articles using persistent phosphors

An article of manufacture comprising:

• a structure, wherein the structure is one selected from a group consisting of:
• a security system device, a portion of a security system device, a fire system device and a portion of fire system device;
• at least one of a persistent phosphor and a persistent phosphor blend, wherein the persistent phosphor and the persistent phosphor blend is one of:
• integrated in a coating on the structure;
• applied on the structure;
• and
• integrated in the structure,
• wherein the persistent phosphor comprises at least one of a first phosphor and a second phosphor and the persistent phosphor blend comprises at least one of a first persistent phosphor blend and a second persistent phosphor blend,
• wherein the first phosphor is at least one of:
• a phosphor selected from phosphors of formula I and phosphors of formula II;
• M1F2-M1S:Eu2+,Ln3+ (I)
• M23M32O5X2:Eu2+,Ln3+ (II)
• wherein
• M1 is Ba, Sr, Ca, Zn, Mg, or a combination thereof;
• M2 is Ba, Sr, Ca, Mg, Zn, or a combination thereof;
• M3 is Al, Ga, B, In, or a combination thereof;
• X is F, Cl, Br, I, or a combination thereof;
• and
• Ln is Dy, Yb, Tm, Er, Ho, Sm, Nd, or a combination thereof;
• and
• wherein the second phosphor comprises a general formula of Ax-y-z Al2-m-n-o-pO4:Euy, REz, Bm, Znn, Coo, Scp wherein:
• 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;
• p is between about 0 and 0.05;
• and
• RE is Dy, Nd, or a combination thereof;
• and
• wherein the first persistent phosphor blend comprises:
• at least one persistent phosphor;
• and
• at least one other persistent phosphor, where an excitation spectrum of the at least one other persistent phosphor partially overlaps an emission spectrum of the at least one persistent phosphor;
• and
• wherein the second persistent phosphor blend comprises:
• at least one persistent phosphor comprising a composition selected from the group consisting of:
• a) a composition having a general formula Ax-y-zAl2-m-n-o-pO4:Euy, Dyz, Bm, Znn, Coo, Scp, where A is Ba, Sr, Ca, or a combination of these elements, x is between about 0.75 and 1.3, y is between about 0.0005 and about 0.1, z is between about 0.0005 and about 0.1, m is between about 0.0005 and about 0.30, n is between about 0.0005 and about 0.10, o is between about 0 and about 0.01 and p is between about 0 and about 0.05, and
• b) a composition having general formula Ax-y-zAl2-m-n-o-pO4:Euy, Ndz, Bm, Znn, Coo, Scp, where A is Ba, Sr, Ca, or a combination of these elements, x is between about 0.75 and about 1.3, y is between about 0.0005 and about 0.1, z is between about 0.0005 and about 0.1, m is between about 0.0005 and about 0.30, n is between about 0.0005 and about 0.10, o is between about 0 and about 0.01, and p is between about 0 and about 0.05;
• and
• at least one other phosphor, wherein the excitation spectrum of the at least one other phosphor partially overlaps the emission spectrum of the persistent phosphor.