Abstract: A device including an LED light source optically coupled to a green-emitting U6+-doped phosphor having a composition selected from the group consisting of U6+-doped phosphate-vanadate phosphors, U6+-doped halide phosphors, U6+-doped oxyhalide phosphors, U6+-doped silicate-germanate phosphors, U6+-doped alkali earth oxide phosphors, and combinations thereof, is presented. The U6+-doped phosphate-vanadate phosphors are selected from the group consisting of compositions of formulas (A1)-(A12). The U6+-doped halide phosphors are selected from the group consisting of compositions for formulas (B1)-(B3). The U6+-doped oxyhalide phosphors are selected from the group consisting of compositions of formulas (C1)-(C5). The U6+-doped silicate-germanate phosphors are selected from the group consisting of compositions of formulas (D1)-(D11). The U6+-doped alkali earth oxide phosphors are selected from the group consisting of formulas (E1)-(E11).

Abstract: A phosphor composition is presented. The phosphor composition includes a solid solution of aluminum nitride and a complex oxide including europium and strontium, where an amount of oxygen in the solid solution is at least 0.4 weight percent and less than 1 weight percent. A lighting apparatus including a phosphor material including the phosphor composition is also provided.

Abstract: A device including an LED light source optically coupled to a phosphor material including a green-emitting phosphor selected from the group consisting of compositions of (A1)-(A70), and combinations thereof.

Abstract: A device including an LED light source optically coupled to a phosphor material including a green-emitting phosphor selected from the group consisting of compositions (A1)-(A62) and combinations thereof.

Abstract: A device including an LED light source optically coupled to a green-emitting U6+-doped phosphor having a composition selected from the group consisting of U6+-doped phosphate-vanadate phosphors, U6+-doped halide phosphors, U6+-doped oxyhalide phosphors, U6+-doped silicate-germanate phosphors, U6+-doped alkali earth oxide phosphors, and combinations thereof, is presented. The U6+-doped phosphate-vanadate phosphors are selected from the group consisting of compositions of formulas (A1)-(A12). The U6+-doped halide phosphors are selected from the group consisting of compositions for formulas (B1)-(B3). The U6+-doped oxyhalide phosphors are selected from the group consisting of compositions of formulas (C1)-(C5). The U6+-doped silicate-germanate phosphors are selected from the group consisting of compositions of formulas (D1)-(D11). The U6+-doped alkali earth oxide phosphors are selected from the group consisting of formulas (E1)-(E11).

Abstract: A phosphor composition is presented. The phosphor composition includes a solid solution of aluminum nitride and a complex oxide including europium and strontium, where an amount of oxygen in the solid solution is at least 0.4 weight percent and less than 1 weight percent. A lighting apparatus including a phosphor material including the phosphor composition is also provided.

Abstract: A process for preparing a Mn+4 doped phosphor of formula I Ax[MFy]:Mn+4?? I includes combining a first solution comprising a source of A and a second solution comprising H2MF6 in the presence of a source of Mn, to form the Mn+4 doped phosphor; wherein A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7; and wherein a value of a Hammett acidity function of the first solution is at least ?0.9. Particles produced by the process may have a particle size distribution with a D50 particle size of less than 10 ?m.

Abstract: A lighting apparatus that includes a light source and a phosphor composition radiationally coupled to the light source is presented. The phosphor composition includes a first phosphor that includes a phase of general formula (I): L3ZO4(Br2-nXn):Eu2+ wherein 0?n?1; L is Zn, Mg, Ca, Sr, Ba, or combinations thereof; Z is Si, Ge, or a combination thereof; and X is F, Cl, I, or combinations thereof.

Abstract: A phosphor composition is disclosed. A phosphor composition, comprises at least 10 atomic % bromine; silicon, germanium or combination thereof; oxygen; a metal M, wherein M comprises zinc (Zn), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), or combinations thereof; and an activator comprising europium. The phosphor composition is formed from combining carbonate or oxides of metal M, silicon oxide, and europium oxide; and then firing the combination. A lighting apparatus including the phosphor composition is also provided. The phosphor composition may be combined with an additional phosphor to generate white light.

Abstract: A phosphor composition is disclosed. A phosphor composition, comprises at least 10 atomic % bromine; silicon, germanium or combination thereof; oxygen; a metal M, wherein M comprises zinc (Zn), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), or combinations thereof; and an activator comprising europium. The phosphor composition is formed from combining carbonate or oxides of metal M, silicon oxide, and europium oxide; and then firing the combination. A lighting apparatus including the phosphor composition is also provided. The phosphor composition may be combined with an additional phosphor to generate white light.

Abstract: A phosphor composition is presented. The phosphor composition includes a first phosphor that includes a phase of general formula (I): L3ZO4(Br2-nXn):Eu2+?? (I) wherein 0?n?1; L is Zn, Mg, Ca, Sr, Ba, or combinations thereof; Z is Si, Ge, or a combination thereof; and X is F, Cl, I, or combinations thereof. A lighting apparatus that includes a light source and the phosphor composition radiationally coupled to the light source is also presented.

Abstract: Processes for producing particles of rare earth-containing phosphor materials, in which the particles have a core-shell structure and the shell has a lower rare earth content than the core. Such a process may include contacting a core particle with a precursor comprising Na(La,Ce,Tb)P2O7 to form a mixture, and then heating the mixture to a temperature sufficient to decompose the Na(La,Ce,Tb)P2O7 to evolve and melt an NaPO3 flux and initiate deposition of a (La,Ce,Tb)PO4 shell on each core particle in the presence of the molten NaPO3 flux.

Abstract: Processes for producing particles of rare earth-containing phosphor materials, in which the particles have a core-shell structure and the shell has a lower rare earth content than the core. Such a process may include contacting a core particle with a precursor comprising Na(La,Ce,Tb)P2O7 to form a mixture, and then heating the mixture to a temperature sufficient to decompose the Na(La,Ce,Tb)P2O7 to evolve and melt an NaPO3 flux and initiate deposition of a (La,Ce,Tb)PO4 shell on each core particle in the presence of the molten NaPO3 flux.

Abstract: Phosphor particles, methods for their use to produce fluorescent lamps, and fluorescent lamps that make use of such particles. Such a phosphor particle has a core surrounded by a shell, and the shell contains GdMgB5O10 doped (activated) with at least terbium ions as a rare earth-containing phosphor composition that absorbs ultraviolet photons to emit green-spectrum light. The core is formed of a mineral material that is chemically compatible with the rare earth-containing phosphor composition of the shell, but does not contain intentional additions of terbium.

Abstract: Phosphor particles, methods for their use to produce fluorescent lamps, and fluorescent lamps that make use of such particles. Such a phosphor particle has a core surrounded by a shell, and the shell contains GdMgB5O10 doped (activated) with at least terbium ions as a rare earth-containing phosphor composition that absorbs ultraviolet photons to emit green-spectrum light. The core is formed of a mineral material that is chemically compatible with the rare earth-containing phosphor composition of the shell, but does not contain intentional additions of terbium.

Abstract: Mercury vapor discharge fluorescent lamps are provided. The lamp can include a lamp envelope enclosing a discharge space and having an inner surface. First and second electrodes can be positioned on the lamp, such as on opposite ends of the lamp envelope. An ionizable medium that includes mercury and an inert gas can be within said lamp envelope. A phosphor layer can be on the inner surface of the lamp envelope. The phosphor layer generally includes a phosphor blend of a calcium halophosphor, a blue phosphor having an emission peak at about 440 nm to about 490 nm, a blue-green phosphor having an emission peak at about 475 nm to about 530 nm, and a red phosphor having an emission peak at about 600 nm to about 650 nm.

Abstract: Cerium, gadolinium and terbium doped aluminum phosphates of formula I may be used in fluorescent lamps Al1-x-y-z-a-b-c-d-eTbxCeyGdzLuaScbIncLadGaePO4??I wherein x is greater than or equal to about 0.001 and less than or equal to about 0.3; y is greater than or equal to about 0.001 and less than or equal to about 0.3; z is greater than or equal to about 0.01 and less than or equal to about 0.3; a is greater than or equal to about 0.01 and less than or equal to about 0.1; b is greater than or equal to about 0.01 and less than or equal to about 0.1; c is greater than or equal to about 0.01 and less than or equal to about 0.1. d is greater than or equal to about 0.01 and less than or equal to about 0.1; and e is greater than or equal to about 0.01 and less than or equal to about 0.1.

Abstract: An LED lamp includes a light source configured to emit radiation with a peak intensity at a wavelength between about 250 nm and about 550 nm; and a phosphor composition configured to be radiationally coupled to the light source. The phosphor composition includes particles of a phosphor of formula I, said particles having a coating composition disposed on surfaces thereof; ((Sr1-zMz)1-(x+w)AwCex)3(Al1-ySiy)O4+y+3(x?w)F1-y-3(x?w)??I wherein the coating composition comprises a material selected from aluminum oxide, magnesium oxide, calcium oxide, barium oxide, strontium oxide, zinc oxide, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, barium hydroxide, strontium hydroxide, zinc hydroxide, aluminum phosphate, magnesium phosphate, calcium phosphate, barium phosphate, strontium phosphate, and combinations thereof; and A is Li, Na, K, or Rb, or a combination thereof; M is Ca, Ba, Mg, Zn, or a combination thereof; and 0<x?0.10, 0?y?0.5, 0?z?0.5, 0?x?x.

Abstract: A phosphor blend suitable for use in a fluorescent lamp for emitting white light is disclosed. The phosphor blend includes a first phosphor, a second phosphor and a third phosphor. The first phosphor is selected from a europium doped barium magnesium aluminate, a europium doped strontium aluminate, and a combination thereof; and the second phosphor has formula Y2O3:Eu3+. The third phosphor is selected from a phosphor of formula I: (A1-xMnx)E4O7, a phosphor of formula II: (L1-y-zMyMnz)2P2O7, and a combination thereof, where 0<x?0.10, 0<y?0.20, 0<z?0.10; A is Ca, Ba, Sr, Zn, Mg, or a combination thereof; E is Ga, Al, In, or a combination thereof; L is Ca, Ba, Sr, Zn, Mg, Na, or a combination thereof; and M is at least one of Sn, and Ce. A fluorescent lamp including such phosphor blend is also disclosed.

Abstract: Mercury vapor discharge fluorescent lamps are provided. The lamp can include a lamp envelope enclosing a discharge space and having an inner surface. First and second electrodes can be positioned on the lamp, such as on opposite ends of the lamp envelope. An ionizable medium that includes mercury and an inert gas can be within said lamp envelope. A phosphor layer can be on the inner surface of the lamp envelope. The phosphor layer generally includes a phosphor blend of a calcium halophosphor, a blue phosphor having an emission peak at about 440 nm to about 490 nm, a blue-green phosphor having an emission peak at about 475 nm to about 530 nm, and a red phosphor having an emission peak at about 600 nm to about 650 nm.