Nanophase luminescence particulate material
AssigneeNomadics, Inc.
InventorWei Chen
Life of this patent
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Abstract
The present invention relates in general to nanoparticles exhibiting luminescence such as photostimulated luminescence or photoluminescence and optical switching processes based upon such properties, in more particular, the use of such photostimulated luminescence exhibiting nanoparticles and switching nanoparticle for optical storage apparatuses and sensors as well as methods of making and using same.
Claims25
A nanophase luminescence particulate material having a size less than 100 nm and having the general formula X/Y, wherein X is at least two dopants selected from the group of ion pairs consisting of (Mn,Eu), (Ce,Tb), (Ag,Eu), (Ce,Eu), (Eu,Tb), (Ce,Yb), (Tb,Yb), (Yb,Eu), (Pr,Tm), (Pr,Sm), (Pr,Dy), (Dy,Sm), (Dy,Tm), (Eu2+, Eu3+) and (Sm,Tm), and further wherein Y is a nanoparticle host represented by the general formula (M1−zNz)xA1−yBy, wherein M=Zn, Cd or Hg;
- N=Zn, Cd, Pb, Ca, Ba, Sr, Mg, Hg;
- A=S, Se, Te, or O;
- B=S, Se, Te, or O;
- and wherein 0<x≦1, 0<y≦1, 0<z≦1.
A nanophase luminescence particulate material having a size less than 100 nm and having the general formula X/Y, wherein X is at least one dopant and Y is a nanoparticle host, wherein the nanoparticle host is represented by the general formula (MxAyB2−y), wherein M=Ca, Ba, Sr, or Mg;
- A=F, Cl, Br, or I;
- B=F, Cl, Br, or I, and 0<x≦1 and 0<y<2, wherein the nanoparticle host is selected from the group consisting of BaF2−xBrx, BaF2−xClx wherein 0<x<2.
A nanophase luminescence particulate material having the formula Y2O3:Tb3+,Eu3+.
A film comprising a nanophase luminescence particulate material, wherein the nanophase luminescence particulate material has a size less than 100 nm and is of the general formula X/Y, wherein X is at least two dopants selected from the group of ion pairs consisting of (Mn,Eu), (Ce,Tb), (Ag,Eu), (Ce,Eu), (Eu,Tb), (Ce,Yb), (Tb,Yb), (Yb,Eu), (Pr,Tm), (Pr,Sm), (Pr,Dy), (Dy,Sm), (Dy,Tm), (Eu2+, Eu3+) and (Sm,Tm), and further wherein Y is a nanoparticle host represented by the general formula (M1−zNz)xA1−yBy, wherein M=Zn, Cd or Hg;
- N=Zn, Cd, Pb, Ca, Ba, Sr, Mg, Hg;
- A=S, Se, Te, or O;
- B=S, Se, Te, or O;
- and wherein 0<x≦1, 0<y≦1, 0<z≦1.
A colloidal solution comprising a nanophase luminescence particulate material and an aqueous or non-aqueous solvent, wherein the nanophase luminescence particulate material has a size less than 100 nm and is of the general formula X/Y, wherein X is at least two donants selected from the group of ion pairs consisting of (Mn,Eu), (Ce,Tb), (Ag,Eu), (Ce,Eu), (Eu,Tb), (Ce,Yb), (Tb,Yb), (Yb,Eu), (Pr,Tm), (Pr,Sm), (Pr,Dy), (Dy,Sm), (Dy,Tm), (Eu2+, Eu3+) and (Sm,Tm), and further wherein Y is a nanoparticle host reDresented by the general formula (M1−zNz)xA1−yBy, wherein M=Zn, Cd or Hg;
- N=Zn, Cd, Pb, Ca, Ba, Sr, Mg, Hg;
- A=S, Se, Te, or O;
- B=S, Se, Te, or O;
- and wherein 0<x≦1, 0<y≦1, 0<z≦1.
A nanophase luminescence particulate material having a size less than 100 nm and having the general formula X/Y, wherein X is at least one dopant and Y is a nanoparticle host, wherein the nanoparticle host is represented by the general formula (MxAyB2−y), wherein M=Ca, Ba, Sr, or Mg;
- A=F, Cl, Br, or I;
- B=F, Cl, Br, or I, and 0<x≦1 and 0<y<2, wherein A does not equal B.
A nanophase luminescence particulate material having a size less than 100 nm and having the general formula X/Y, wherein X is at least one dopant and Y is a nanoparticle host, wherein the nanoparticle host is represented by the general formula (MxFvClwBryIz) wherein M=Ca, Ba, Sr, or Mg and 0<x≦1;
- 0≦v≦2;
- 0≦w≦2;
- 0≦y≦2;
- 0≦z≦2;
- the combination of v+w+y+z is greater than 1 and less than or equal to 2;
- and at least two of v, w, y, and z are greater than zero.
Dependencies are inferred from the claim text.