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7387833 |
Luminescent materials consisting of nanocrystals with core/shell structure and method for preparing same
Luminescent material consisting of nanocrystals comprising a core surrounded by a shell, said core consisting of a nanocrystal of semiconductor of formula AB in which A represents a metal or a...
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7378038 |
Process for producing phosphors
A mixed melt, which contains urea and/or a urea derivative and contains a metal compound, is prepared. The mixed melt is solidified, by heating, whereby the urea and/or urea derivative is...
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7374807 |
Nanocrystal doped matrixes
The present invention provides matrixes doped with semiconductor nanocrystals. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light...
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7368179 |
Methods and devices using high efficiency alkaline earth metal thiogallate-based phosphors
The present invention provides a light emitting device comprising: a light output; a light source that produces light having a wavelengths of 530 nm or less; and a wavelength transformer located...
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7351356 |
Luminescent material, especially for LED application
UV-blue excitable green luminescent material including an Eu-doped oxynitride host lattice with general composition MSi 2 O 2 N 2 , wherein M is at least one of an alkaline earth metal chosen from...
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7335345 |
Synthesis of water soluble nanocrystalline quantum dots and uses thereof
An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm...
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7329371 |
Red phosphor for LED based lighting
Disclosed are phosphor compositions having the formula (RE 1-y Ce y )Mg 2-x Li x Si 3-x P x O 12 , where RE is at least one of Sc, Lu, Gd, Y, and Tb, 0.0001<x<0.1 and 0.001<y<0.1. When...
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7326365 |
Composite material including nanocrystals and methods of making
Temperature-sensing compositions can include an inorganic material, such as a semiconductor nanocrystal. The nanocrystal can be a dependable and accurate indicator of temperature. The intensity of...
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7316790 |
Sulfur-containing phosphor powders, methods for making phosphor powders and devices incorporating same
Sulfur-containing phosphor powders, methods for making phosphor powders and devices incorporating same. The powders have a small particle size, narrow particle size distribution and are...
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7311859 |
Method to produce nanocrystalline powders of oxide-based phosphors for lighting applications
Some embodiments of the present invention are directed toward nanocrystalline oxide-based phosphor materials, and methods for making same. Typically, such methods comprise a steric entrapment route...
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7311858 |
Silicate-based yellow-green phosphors
Novel phosphor systems are disclosed having the formula A 2 SiO 4 :Eu 2+ D, where A is at least one of a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn, and Cd; and D is a...
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7297295 |
Highly bright mechanoluminescence material and process for producing the same
A novel highly bright mechanoluminescence material free from decay of luminescence brightness even if repeated stress is applied, comprising a composite semiconductor crystal of the general formula...
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7294956 |
Semiconductor light emitting element and light emitting device using this
The semiconductor light emitting device is composed of a combination of a near ultraviolet LED and a phosphor layer including a plurality of phosphors for absorbing near ultraviolet emitted by the...
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7252787 |
Garnet phosphor materials having enhanced spectral characteristics
Phosphor compositions having the formula (Y 1-x-y-z Tb x Gd y Ce z ) 3 (M 1 M 2 ) t (Al 1-r-s Ga r In s ) A-2t O 12+D , where M 1 is Mg or Zn, M 2 is Si or Ge, 0<x+y<1, 0.01<z<0.1,...
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7241399 |
Synthesis of nanoparticles
Methods for the preparation of inorganic nanoparticles capable of fluorescence, wherein the nanoparticles consist of a host material that comprises at least one dopant. The synthesis of the...
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7226547 |
Electroluminescent phosphor powders, methods for making phosphor powders and devices incorporating same
Electroluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The...
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7223987 |
Process for producing phosphor and plasma display panel unit
Fine particles of a phosphor are weighed, mixed, and filled. Provided after this step are at least one step of firing the particles in a reducing atmosphere, and a step of pulverizing, dispersing,...
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7221083 |
Light emitting device
A blue-emitting phosphor is optimized by controlling mole fractions typically of Mg and Si in Sr 3-e Mg b Si 2 cO 8d :Eu e or by further including an optimal amount of at least one additional...
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7214428 |
Highly luminescent functionalized semiconductor nanocrystals for biological and physical applications
The present invention provides for detection apparatus with functionalized fluorescent nanocrystal compositions and methods for making and using these compositions in biological detection...
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7214330 |
Method of manufacturing phosphor powder, phosphor powder, and phosphor composition
A method of manufacturing a highly crystallized phosphor powder, comprising: making a raw material solution containing metal elements and/or semimetal elements that will be constituents of the...
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7205710 |
Fluorescent lamp with ultraviolet reflecting layer
An ultraviolet reflecting layer and a fluorescent lamp is described, comprising an envelope having an inner surface, means within the lamp envelope for generating ultraviolet radiation, a light...
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7205048 |
Functionalized fluorescent nanocrystal compositions and methods of making
The present invention provides for functionalized fluorescent nanocrystal compositions and methods for making these compositions. The compositions are fluorescent nanocrystals coated with at least...
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7198847 |
Nanocrystals
Provided herein are compositions of functionalized, fluorescent nanocrystals comprising fluorescent nanocrystals coated with an imidazole-containing compound; compositions of functionalized,...
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7175778 |
Self-aligning QCA based nanomaterials
The present application is directed to the preparation and use of a class of nanoparticles called Quantum Confined Atoms or QCA's. A QCA is a particle of material comprising a plurality of host...
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7160613 |
Stabilized semiconductor nanocrystals
A semiconductor nanocrystal associated with a polydentate ligand. The polydentate ligand stabilizes the nanocrystal.
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7132783 |
Phosphor particles having specific distribution of average diameters
Small particles provide for improved performance as phosphors especially in the production of display devices. Particles with an diameter less than about 100 nm have altered band properties that...
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7125501 |
High efficiency alkaline earth metal thiogallate-based phosphors
Provided, among other things, is a strontium calcium thiogallate phosphor doped with divalent europium, and having the following formula:
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7112373 |
Oxygen substituted barium thioaluminate phosphor materials
A thin film phosphor for an electroluminescent device, the phosphor being selected from the group consisting of thioaluminates, thiogallates and thioindates having at least one cation selected from...
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7101520 |
High luminescence phosphor particles and methods for producing the particles
Methods for producing metal/metalloid oxide particles comprise rare earth metals herein include reacting a reactant stream in a gas flow. The reactant stream includes a rare earth metal precursor...
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7094361 |
Optically transparent nanocomposite materials
Optically transparent composite materials in which solid solution inorganic nanoparticles are dispersed in a host matrix inert thereto, wherein the nanoparticles are doped with one or more active...
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7067072 |
Nanophase luminescence particulate material
The present invention relates in general to nanoparticles exhibiting luminescence such as photostimulated luminescence or photoluminescence and optical switching processes based upon such...
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7041371 |
Polyethylene glycol-modified semiconductor nanoparticles, method for producing the same, and material for biological diagnosis
This invention provides PEG-modified semiconductor nanoparticles of which fluorescence intensity is effectively inhibited from lowering, which are capable of forming a stable dispersion in water,...
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7018565 |
Efficient, size-selected green-emitting phosphors
Provided among other things is a method of forming a phosphor of the formula
SrGa 2 S 4 :Eu:xGa 2 S 3 (I)
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7018564 |
Method for making phosphor ink and system using the same
A method for making phosphor ink is provided which uses ultrasonic vibrations to remove surface defect layers from phosphor particles and to quickly and uniformly disperse the phosphor particles...
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7011896 |
Phosphor thin film, preparation method, and EL panel
In a phosphor thin film comprising a matrix material and a luminescence center, the matrix material has the compositional formula: M II v A x B y O z S w wherein M II is Zn, Cd or Hg, A is Mg,...
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7008559 |
Manganese doped upconversion luminescence nanoparticles
The present relates in general to upconversion luminescence (“UCL”) materials and methods of making and using same and more particularly, but not meant to be limiting, to Mn 2+ doped...
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7008557 |
Production method of phosphor and phosphor
The present invention relates to a production method of a phosphor comprising the steps of: forming a phosphor precursor in a liquid phase; drying the phosphor precursor; and firing the dried...
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7001537 |
Phosphor and its production process
The present invention is to provide a phosphor of minimum particle size having an excellent crystallinity and a high brightness higher than conventional crude particles, which is usable for a...
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6994802 |
Cathodoluminescent phosphor powders, methods for making phosphor powders and devices incorporating same
Cathodoluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The...
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6982124 |
Yttrium substituted barium thioaluminate phosphor materials
A thin film phosphor for an electroluminescent device, the phosphor being selected from the group consisting of thiasluminates, thiogallates and thioindates having at least one cation selected from...
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6982046 |
Light sources with nanometer-sized VUV radiation-absorbing phosphors
A light source comprises: (a) a source of plasma discharge that emits electromagnetic radiation, a portion of which has wavelengths shorter than about 200 nm; and (b) a phosphor composition that...
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6942932 |
Phosphor and EL panel
A phosphor comprising a matrix material: Ba 1-x Zn x S wherein 0<x<1 and a luminescence center, typically Mn and/or Eu emits light of a sufficient color purity to eliminate a need for a...
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6939482 |
Phosphor thin film, manufacturing method of the same, and electroluminescent panel
A phosphor thin film includes a matrix material expressed by a composition formula A x B y O w S z , and a substance functioning as a luminescence center in the matrix material. In the composition...
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6926848 |
Compound based on an alkaline-earth metal, sulphur and aluminium, gallium or indium, its method of preparation and its use as a phosphor
The invention relates to a compound based on at least one element A chosen from alkaline-earth metals, on at least one element B chosen from aluminium, gallium and indium, on sulphur and on a...
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6919060 |
Process for producing particles of a metal compound
The object of the present invention is to provide a process for producing particles of a metal compound having a spherical particle shape and an average particle diameter larger than 0.3 μm...
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6911251 |
Composite scintillator material and method of manufacture
An optically nonisotropic composite material. The composite material includes two materials, a transparent bulk optical material and radiation absorbing or reflecting fibers embedded within the...
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6899827 |
Inorganic optical taggant and method of making
Sintered, translucent ceramic microbeads, preferably alumina, titania, zirconia, yttria, zirconium phosphate, or yttrium aluminum garnet (YAG) are doped with one or more optically active species....
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6893490 |
Ink for display panel and method for producing plasma display panel using the same
An ink for a display panel that at a time of application is a mixture of a powder material, a water-soluble resin included in a range of 1 wt % to 20 wt % inclusive of the ink, and a water-miscible...
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6882099 |
Phosphor for display and field-emission display
Phosphors for a display, which emit blue light and green light, comprise zinc sulfide phosphors having a crystal structure of a hexagonal system. The zinc sulfide phosphor which emits blue light...
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6872450 |
Water-stable photoluminescent semiconductor nanocrystal complexes and method of making same
A method for preparing water-stable semiconductor nanocrystal complexes that can be stably coupled to tertiary molecules using a self-assembled coating of diblock polymers. The diblock polymers...
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