Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


INORGANIC LUMINESCENT COMPOSITIONS WITH ORGANIC NONLUMINESCENT MATERIAL

Subclass of:

252 - Compositions

Patent class list (only not empty are listed)

Deeper subclasses:

Entries
DocumentTitleDate
20130043431MATERIAL COMPOSITION WITH SPECIFIC SEGMENT WAVELENGTH MATCHING REFRACTIVE INDEX - A material composition with specific segment wavelength matching refractive index includes (a) resin or a composite thereof to serve as a bonding agent and (b) a medium material of metal oxides or complex metal oxides of specific particle size to serve as an additive for specific segment wavelength matching refractive index. The composition is formed by combining the bonding agent and additive. The composition material uses the wavelength of light emitting from a light-emitting diode (LED) die or excited from a fluorescent agent as the range of a segment to add nanometer particles of D=λ/4n optic thickness as basis for formation of an effective medium layer and thus providing a matching refractive index for wavelength of the specific segment bandwidth. Corresponding to different refractive indexes n02-21-2013
20080258112LUMINESCENT COMPOSITION, LIGHT SOURCE DEVICE, DISPLAY DEVICE AND PROCESS FOR PREPARING LUMINESCENT COMPOSITION - Disclosed is a luminescent composition containing a fluorescent body having Eu2+as a luminescent center. The luminescent composition is obtained by a process including the steps of mixing a raw material of the fluorescent body with an organic compound having elements other than oxygen, and sintering the mixture to form the fluorescent body from the raw material.10-23-2008
20130037748SEMICONDUCTOR DEVICE MEMBER, PRODUCTION METHOD OF SEMICONDUCTOR-DEVICE-MEMBER FORMATION LIQUID AND SEMICONDUCTOR DEVICE MEMBER, AND SEMICONDUCTOR-DEVICE-MEMBER FORMATION LIQUID, PHOSPHOR COMPOSITION, SEMICONDUCTOR LIGHT-EMITTING DEVICE, LIGHTING SYSTEM AND IMAGE DISPLAY SYSTEM USING THE SAME - To provide a semiconductor device member that is superior in heat resistance, light resistance, film-formation capability and adhesion, and is capable of sealing a semiconductor device and holding a phosphor without causing cracks, peelings and colorings even after used for a long period of time, the weight loss at the time of heating, measured by a predetermined weight-loss at-the-time-of-heating measurement method, is 50 weight % or lower and the ratio of peeling, measured by a predetermined adhesion evaluation method, is 30% or lower, in the semiconductor device member.02-14-2013
20130032759NEAR INFRARED-EMITTING ER AND YB/ER DOPED CEF3 NANOPARTICULATES WITH NO VISIBLE UPCONVERSION - A rare earth element composition comprising CeF02-07-2013
20100044640High refractive index materials and composites - This invention discloses composite materials utilizing high refractive index materials and their use with phosphors, LED packaging and as fillers in polymers and in polymer blends.02-25-2010
20100044639STABILIZED CORE-SHELL NANOPARTICLES OF HYDROPHOBIC METAL COMPLEXES AND REPRECIPATION-ENCAPSULATION METHOD FOR PREPARING SAME - In one aspect, the invention relates to stable, luminescent, lanthanide-based nanoparticles and methods for making same. Thus, disclosed are lanthanide-based nanoparticles exhibiting a luminescence brightness of at least about 4%×(3×1002-25-2010
20100108947RESIN COMPOSITION, RESIN MOLDED ARTICLE, AND GENERATION METHOD OF RESIN COMPOSITION - A luminous material such as an aluminum luminous material of which particle size is 1 μm to 7 μm is added for 1.8 weight parts to 4.4 weight parts relative to 100 weight parts of a resin material such as, for example, an AES resin containing a copolymer. A molding is performed by using a resin composition generated as stated above, and thereby, a resin molded article having luminosity, a suppression effect of interference of scattered light, and associated physical properties can be obtained.05-06-2010
20120181482LIGHT-CONVERSION FLEXIBLE POLYMER MATERIAL AND USE THEREOF - A light-conversion flexible polymer material consists of an organic silicone rubber (bi-component addition thermal vulcanizing liquid silicone rubber, 20.0-75.0%), a diluting agent (silicone oil, 10.0-20.0%), a luminescent material (one or more of aluminate, silicate, siliconitride and oxysulfide luminescent materials, 15.0-65.0%) and auxiliary. The polymer material can be bent randomly as required. The polymer material is made by mixing raw materials uniformly in a blending container, inpouring the obtained mixture into a mold and thermal-curing. The polymer material is used on the surface of a blue-light LED and the luminescent material in the light-conversion flexible polymer material can be excitated by light emitted from the blue light LED to give out light, which is combined with residual blue light into white light. The polymer material can be widely used in light-source devices such as lamp, nixie tube and backlight.07-19-2012
20100006802Display for image and manufacturing method at the same - The present invention relates to a display, more specifically, to an image display improving a hot spot and a viewing angle and solving problems caused by the chemical characteristic of materials, even if implementing a display by projection-type, and manufacturing method at the same.01-14-2010
20100096593Encapsulated luminescent particulates and aggregates made therefrom - An encapsulated luminescent particle for use in an aqueous environment includes a luminescent pigment capable of being illuminated by an external light source and an encapsulating material, wherein the encapsulated luminescent particles are between about 1.5 mm and about 5 mm in size. The encapsulating material permits luminescence from the luminescent pigment upon excitation by an external light source, such as, a blacklight, while allowing the luminescent pigment to be safely used in an aqueous environment, such as a pool, spa, or the like.04-22-2010
20110024686Composition and Process for Preparing Phosphorescent Masterbatch and Phosphorescent Article Containing the Same - A composition for preparing a phosphorescent masterbatch is provided. The composition includes about 1-45 wt % of a phosphorescent material, about 0.1-10 wt % of a crosslinking, about 38-98.8 wt % of a thermoplastic polymer, about 0-0.2 wt % of a crosslinking initiator, and about 0.1-5 wt % of a dispersing agent.02-03-2011
20110278503AMPHIPHILIC POLYMERS AND NANOCRYSTALS COATED THEREWITH - The invention relates to an amphiphilic polymer (A) comprising repeat units of the general formulae (I), (II) and (III): or salts thereof, wherein the repeat unit of general formula (I) is comprised in the amphiphilic polymer with a number of m units, the repeat unit of general formula (II) is comprised in the amphiphilic polymer with a number of o units and repeat unit of general formula (III) is comprised in the amphiphilic polymer with a number of p units, wherein each of m, o and p is an independently selected integer from about 3 to about 400 and wherein the sum of m+o+p is selected in the range from about 10 to about 10000, R11-17-2011
20090261295Phosphorescent marine products - In one embodiment of the invention, a marine article of the invention includes a phosphorescent phosphor. A particularly advantageous phosphorescent phosphor comprises MAl10-22-2009
20100176344WAVELENGTH-CONVERTING CASTING COMPOSITION AND LIGHT-EMITTING SEMICONDUCTOR COMPONENT - The wavelength-converting casting composition is based on a transparent epoxy casting resin with a luminous substance admixed. The composition is used in an electroluminescent component having a body that emits ultraviolet, blue or green light. An inorganic luminous substance pigment powder with luminous substance pigments is dispersed in the transparent epoxy casting resin. The luminous substance is a powder of Ce-doped phosphors and the luminous substance pigments have particle sizes≦20 μm and a mean grain diameter d07-15-2010
20100117029FORMING CROSSLINKED-GLUTATHIONE ON NANOSTRUCTURE - In a method of forming a light emissive nanostructure, a quantum dot is provided and a crosslinked-glutathione layer around the quantum dot is formed. The light emissive nanostructure thus comprises a quantum dot and a crosslinked-glutathione layer around the quantum dot. In another method, a metal-based nanostructure is provided, and a crosslinked-glutathione layer coated on a surface of the metal-based nanostructure is formed. The metal-based nanostructure is thus coated with a crosslinked-glutathione layer. To promote crosslinking and stability, the glutathione layer may be crosslinked in the presence of an activating agent and sufficient amount of free glutathione.05-13-2010
20090065742SYNTHESIS OF WATER SOLUBLE NON-TOXIC NANOCRYSTALLINE QUANTUM DOTS AND USES THEREOF - An economic, direct synthetic method for producing water soluble ZnS QDs that are ready for bioconjugation is provided. The method can produce aqueous ZnS QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via an aqueous synthesis route. MS QDs are capped with thiol-containing charged molecules in a single step. The resultant MS QDs exhibit the distinctive excitonic photoluminescence desired of QDs and can be fabricated to avoid undesirable broadband emissions at higher wavelengths. The aqueous ZnS QDs are stable in biological fluids over a long period of time. In addition, non-toxic ZnS QDs have been produced with good photoluminescence properties.03-12-2009
20090206301INORGANIC PHOSPHOR BODIES FOR LIGHT EMITTING DIODES - An inorganic phosphor body (08-20-2009
20090014687LUMINESCENT, TRANSPARENT COMPOSITE MATERIALS - The invention relates to a transparent, luminescent plastic glass containing luminescent particles and to a method for producing the same. The glass hardly differs or differs only slightly in terms of transparency from pure plastic glass. In addition, said glass is easy to produce.01-15-2009
20110001092WATER SOLUBLE NANOCRYSTALLINE QUANTUM DOTS - 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 to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via an aqueous synthesis route. MS QDs are capped with thiol-containing charged molecules in a single step. The resultant MS QDs exhibit the distinctive excitonic photoluminescence desired of QDs and can be fabricated to avoid undesirable broadband emissions at higher wavelengths. This provides a significant improvement over the present complex and expensive commercial processes for the production of QDs. The aqueous QDs are stable in biological fluids over a long period of time. In addition, nontoxic ZnS QDs have been produced with good photoluminescence properties by refluxing the ZnS QD suspensions over a period of time.01-06-2011
20090289226Compound Material for Inorganic Phosphor and White LED - A compound material for white LED, including an inorganic phosphor, an inorganic light scatter and a polymer adhesive for interaction with a shortwave light radiated by an InGaN heterostructure. The light scatter is a nano-scale powder material formed of A11-26-2009
20110186781COATING COMPOSITION - A coloured coating composition comprising a white base paint and at least one coloured pigment in a form that can be readily mixed with the white base paint, the white base paint comprising a film-forming polymer, a liquid carrier, one or more opacifying white pigments and one or more extenders, the coloured coating composition having a light reflectance value Y less than 110, and greater than that defined by the equation Y=mC+K, where 25>C>1.0, C being the chroma of the coloured coating composition, m and K being empirical coefficients selected according to the type and number of the type of the at least one coloured pigment, and dependant on the hue angle of the coating composition.08-04-2011
20090014688Semiconductor Nanoparticles and Manufacturing Method of The Same - A process for the production of semiconductor nanoparticles which realizes both uniform crystallite size and high crystallinity with the agglomeration thereof inhibited. This process is characterized by comprising the step (a) of generating nano-size particles from a semiconductor raw material and dispersing the particles in a gas phase, the step (b) of heat-treating the particles while keeping the particles in a state dispersed in the gas phase, and the step (c) of collecting the heat-treated particles immediately after the heat treatment with a solution of a surface modifier for modifying the surfaces of the particles.01-15-2009
20090189122METHOD FOR PREPARING OXIDE NANO PHOSPHORS - Disclosed is a method for preparing an oxide nano phosphor. A metal precursor solution is prepared. The metal precursor solution is impregnated into a porous polymer material. A heat treatment is performed on the porous polymer material having the metal precursor solution impregnated therein. The heat treatment is performed by heating the porous polymer material having the metal precursor impregnated therein up to a temperature of higher than 500° C. solution at a temperature elevating rate of higher than 100° C. per minute.07-30-2009
20090152498LUMINOUS MATERIALS - A luminous material comprising a rubber, glass or plastics material matrix. A luminescent material is dispersed throughout the matrix, and a colorant dispersed throughout the matrix. The colourant gives the matrix a colour when it is observed under substantially white light, and the colourant allowing substantial transmission of light emitted by the luminous material.06-18-2009
20090090893NANOSILICON-BASED ROOM TEMPERATURE PAINTS AND ADHESIVE COATINGS - A composite of the invention is a homogenous mixture of room temperature vulcanizing material or polymer and luminescent silicon nanoparticles. The composite can be formed into a film and can serve as a paint, adhesive, or coating, depending upon the material or polymer used. A preferred polymer is polyurethane. A method for forming a silicon nanoparticle and room temperature vulcanizing (RTV) material or polymer composite of the invention includes steps providing silicon nanoparticles that were prepared in a solvent. The solvent is mixed with RTV or polymer precursors. The RTV or polymer components are permitted to cure. A preferred solvent is isopropynol alcohol.04-09-2009
20110198539Process for producing fluorescent substance composite glass and fluorescent substance composite glass green sheet - The present invention provides a fluorescent substance composite glass which is chemically stable, has a large size, is reduced in wall thickness, has a uniform thickness and therefore has a high energy conversion efficiency; a fluorescent substance composite glass green sheet and a process for producing the fluorescent substance composite glass. The fluorescent substance composite glass of the present invention is produced by baking a mixture containing a glass powder and an inorganic fluorescent substance powder, in which the energy conversion efficiency to a visible light wavelength region of 380 to 780 nm is 10% or more, when light having an emission peak in a wavelength range of 350 to 500 nm is applied.08-18-2011
20100283008Carbon Nanotube Compositions and Methods for Production Thereof - Compositions comprising at least one type of carbon nanotube, at least one surfactant, and at least one polymer are disclosed. The compositions provide stable fluorescence over a wide range of pH in various embodiments. In some embodiments, the compositions are biocompatible. Methods for preparing the compositions from at least one pre-formed polymer are disclosed. Methods for preparing the compositions from at least one monomer are disclosed. Heating methods utilizing the compositions are disclosed.11-11-2010
20080283797FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE USING THE SAME - Disclosed is a fluorescent substance comprising an alkaline earth ortho-silicate, the fluorescent substance being activated by Eu11-20-2008
20080246006Cdte/Gsh Core-Shell Quantum Dots - Quantum dots, each having a core comprising CdTe and a shell comprising GSH covering the core, are provided. The Quantum dots can be formed in a solution comprising a telluride (Te) precursor and a cadmium (Cd) precursor for forming the cores, and glutathione (GSH) for forming shells covering the cores. The cores can comprise CdTe nanocrystals grown in the solution. The growth of the nanocrystals can be limited. The quantum dots can have high fluorescence emission quantum yield such as up to about 45%, and small sizes such as from about 3.8 nm to about 6 nm.10-09-2008
20090179176Fluorescent substance- or contrast medium-containing latex polymer particles, and a process to produce the same - This invention provides a method to effectively incorporate inorganic fluorescent substance or inorganic contrast medium into latex polymer particles which are used for diagnostic test or the like, and also provides thus produced fluorescent substance-containing latex polymer particles which show decreased non-specific adsorption of protein or the like. Said latex polymer particles are produced by making latex-forming monomer, macromer which has at least a hydrophilic polymer segment and an inorganic fluorescent substance or an inorganic contrast medium co-existent simultaneously in an aqueous medium, and subjecting them to a polymerization reaction.07-16-2009
20100140551Nanocrystal doped matrixes - Matrixes doped with semiconductor nanocrystals are provided. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes of the present invention can also be utilized in refractive index matching applications. In other embodiments, semiconductor nanocrystals are embedded within matrixes to form a nanocrystal density gradient, thereby creating an effective refractive index gradient. The matrixes of the present invention can also be used as filters and antireflective coatings on optical devices and as down-converting layers. Processes for producing matrixes comprising semiconductor nanocrystals are also provided. Nanostructures having high quantum efficiency, small size, and/or a narrow size distribution are also described, as are methods of producing indium phosphide nanostructures and core-shell nanostructures with Group II-VI shells.06-10-2010
20110220844SULFONATE MODIFIED NANOCRYSTALS - A nanoparticle having one or more phosphonates or phosphinate ligands on their surface can be converted into nanoparticles with sulfonate ligands on their surface, by contacting the phosphonate-containing nanoparticles with a silylsulfonate reagent. Such nanoparticles are activated toward reactions with nucleophilic groups; thus the method provides activated nanoparticles, and methods of making and using them to produce modified nanoparticles.09-15-2011
20100200808NANOSCALE PHOSPHOR PARTICLES WITH HIGH QUANTUM EFFICIENCY AND METHOD FOR SYNTHESIZING THE SAME - Described herein are batches of nanoscale phosphor particles having an average particle size of less than about 200 nm and an average internal quantum efficiency of at least 40%. The batches of nanoscale phosphor particles can be substantially free of impurities. Also described herein are methods of manufacturing the nanoscale phosphor particles by passing phosphor particles through a reactive field to thereby dissociate them into elements and then synthesizing nanoscale phosphor particles by nucleating the elements and quenching the resulting particles.08-12-2010
20120068118NANOCRYSTAL DOPED MATRIXES - Matrixes doped with semiconductor nanocrystals are provided. In certain embodiments, the semiconductor nanocrystals have a size and composition such that they absorb or emit light at particular wavelengths. The nanocrystals can comprise ligands that allow for mixing with various matrix materials, including polymers, such that a minimal portion of light is scattered by the matrixes. The matrixes can also be utilized in refractive index matching applications. In other embodiments, semiconductor nanocrystals are embedded within matrixes to form a nanocrystal density gradient, thereby creating an effective refractive index gradient. The matrixes can also be used as filters and antireflective coatings on optical devices and as down-converting layers. Processes for producing matrixes comprising semiconductor nanocrystals are also provided. Nanostructures having high quantum efficiency, small size, and/or a narrow size distribution are also described, as are methods of producing indium phosphide nanostructures and core-shell nanostructures with Group II-VI shells.03-22-2012
20090050852Metal Oxide Particle-Containing Polysiloxane Composition and Method for Producing Same - The metal oxide fine particle-containing polysiloxane composition of the present invention is obtained by mixing (A) metal oxide fine particles with (B1) polyfunctional polysiloxane obtained by allowing alkoxy-terminated polyfunctional polysiloxane (b1) represented by the following average compositional formula (1): R02-26-2009
20110140045ASPHALT MIXTURE - A phosphorescent asphalt mixture comprising a binder, aggregate and a phosphorescent compound is disclosed. The phosphorescent compound has formula MAl06-16-2011
20110226996LUMINESCENT PAINTS AND METHODS OF MAKING THE SAME - Luminescent paints and methods of making luminescent paints are provided. In some examples, the luminescent paints may include urethane resin and luminescent substance. The luminescent paints may also include a variety of day time, UV stable colors and a flex agent that facilitates dependable application of the luminescent paint to flexible objects.09-22-2011
20120104320LUMINESCENT PAINTS AND METHODS OF MAKING THE SAME - Luminescent paints and methods of making luminescent paints are provided. In some examples, the luminescent paints may include urethane resin and luminescent substance. The luminescent paints may also include a variety of day time, UV stable colors, thereby providing the luminescent paints with long lasting and vibrant day time colors. Also, the luminescent paints may be bio-friendly in nature and may include low levels of hazardous air pollutants (HAPs) or no HAPs at all.05-03-2012
20120104319LUMINESCENT PAINTS AND METHODS OF MAKING THE SAME - Luminescent paints and methods of making luminescent paints are provided. In some examples, the luminescent paints may include epoxy resin and luminescent substance. The luminescent paints may also include a variety of day time, UV stable colors.05-03-2012
20090242839Gas-phase infiltration of phosphors into the pore system of inverse opals - The invention relates to a process for the incorporation of volatile phosphors into the pore system of inverse opals by means of gas-phase infiltration, and to corresponding illuminants10-01-2009
20090242838METHOD FOR OBTAINING A SCINTILLATION STRUCTURE - A method for obtaining a scintillation body comprising the steps of readying a matrix of binding material within which is present a plurality of scintillation crystals, obtaining a plurality of channels within the matrix and around the crystals and inserting metallic material having a high atomic number and high density between mutually adjacent scintillation crystals without separating the scintillation crystals from the matrix of binding material.10-01-2009
20120193579ALKALINE EARTH METAL SILICATE LUMINOPHORES AND METHOD FOR IMPROVING THE LONG TERM STABILITY THEREOF - The present invention relates to alkaline earth metal silicate luminophores having improved long-term stability and to a corresponding method for improving the long-term stability of alkaline earth metal silicate luminophores. The luminophore according to the invention is a luminophore comprising a base lattice according to the general chemical formula EA08-02-2012
20090314991QUANTUM DOT INK COMPOSITION FOR INKJET PRINTING AND ELECTRONIC DEVICE USING THE SAME - Disclosed herein is a quantum dot ink composition for inkjet printing. The quantum dot ink composition comprises a highly viscous polymeric additive. Quantum dots can be ejected by inkjet printing and the concentration of the quantum dots in the quantum dot ink composition can be freely controlled. In addition, the loading amount of the quantum dots can be reduced. Based on these advantages, the quantum dot ink composition can be used as a material for light-emitting layers of a variety of electronic devices. Also disclosed herein is an electronic device fabricated using the quantum dot ink composition.12-24-2009
20090072198SULFUR-CONTAINING DISPERSANT AND SULFIDE PHOSPHOR PASTE COMPOSITION COMPRISING THE SAME - A sulfide phosphor paste composition comprising a sulfur-containing dispersant, and a fluorescent film prepared therefrom, are provided. The sulfur-containing dispersant has a dual head structure containing both a carboxyl group and a thiol group or a structure containing a thiol or thiophene group as a head group. An oligomeric sulfur-containing dispersant is also provided. Adsorption of the dispersant on the surface of the sulfide phosphor prevents aggregation of the phosphor particles, and thereby improves the dispersibility of the sulfide phosphor paste composition, the homogeneity of the phosphor in the paste composition, and the density of a film produced from the paste composition. Fluorescent films and display devices produced from the phosphor paste composition exhibit improved luminescent properties and excellent processability.03-19-2009
20120032116METHOD OF PRODUCING DIAMOND POWDER AND DOPED DIAMONDS - A method for producing a diamond material by contacting a fluorinated precursor with a hydrocarbon in a reactor and forming a combination in the absence of a metal catalyst; increasing the pressure of the reactor to a first pressure; heating the combination under pressure to form a material precursor; cooling the material precursor; and forming a diamond material.02-09-2012
20100176343ENERGY-TRANSFER NANOCOMPOSITE MATERIALS AND METHODS OF MAKING AND USING SAME - The presently claimed and disclosed inventions relate, in general, to methods of radiation dosimetry and imaging using scintillation luminescence. More particularly, materials having a scintillation luminescence response to radiation that varies with total radiation dose received can be used for dosimetry monitoring, including, but not limited to nanoparticles for in vivo, real-time dosimetry. Energy-transfer nanocomposite materials as well as methods of making and using such materials in various applications including, but not limited to, in vivo radiation dosimetry and imaging, are disclosed. More particularly, the presently claimed and disclosed inventions relate to nanoparticle scintillation luminescence particles encapsulated in hosts of the general formula BaFX and BaFX:Eu07-15-2010
20100155668SEMICONDUCTOR NANOCRYSTAL PROBES FOR BIOLOGICAL APPLICATIONS AND PROCESS FOR MAKING AND USING SUCH PROBES - A semiconductor nanocrystal compound and probe are described. The compound is capable of linking to one or more affinity molecules. The compound comprises (06-24-2010
20100264371COMPOSITION INCLUDING QUANTUM DOTS, USES OF THE FOREGOING, AND METHODS - One aspect of the present invention relates to a composition comprising a host material including quantum dots and one or more of the following additives: a UV absorbing dye; a humectant; an occlusant; a terpene; a surfactant; an antioxidant; a pigment; a fragrance; a fatty acid ester emulsifier; a fatty acid ester; a high molecular weight alcohol; an oxygen scavenger; a fatty alcohol; a silicone fluid; and a hydrocarbon oil. Other aspects of the present invention relate to a particle comprising a composition of the invention, a powder comprising a particle of the invention, a formulation including a composition of the invention, a coating including a composition of the invention, a taggant including a composition of the invention, a device including a composition of the invention, a method for making a composition of the invention, and other products and applications utilizing a composition of the invention. In a preferred embodiment, a quantum dot comprises a light-emissive semiconductor nanocrystal.10-21-2010
20100213415METAL OXIDE FINE PARTICLES, SILICONE RESIN COMPOSITION AND USE THEREOF - The present invention relates to metal oxide fine particles treated with a surface-treating agent containing a silicon compound having an alkenyl group having 2 to 20 carbon atoms, a silicone resin composition obtained by reacting the metal oxide fine particles with an organohydrogensiloxane, a photo semiconductor element-encapsulating material containing the silicone resin composition, and a photosemiconductor device including a photosemiconductor element encapsulated with the silicone resin composition or the photosemiconductor element-encapsulating material.08-26-2010
20100001235CONSTRUCTION OF QUANTUM DOTS VIA A REGIOSELECTIVE DENDRITIC FUNTIONALIZED CELLULOSE TEMPLATE - The invention is directed to quantum dot nanoparticles and methods of preparation. Using regioselective dendritic functionalized cellulose, quantum dots may be embedded in the modified cellulosic material. The quantum dot nanoparticles provide use for biotechnology or biomedicinal applications. Photooptical properties and morphology for use in as well as its biocompatibility were investigated.01-07-2010
20080277626QUANTUM DOT FLUORESCENT INKS - The present invention relates to inks and more particularly, to fluorescent ink formulations including quantum dots for various printing processes such as inkjet, flexographic, screen printing, thermal transfer, and pens. The inks include one or more populations of fluorescent quantum dots dispersed in polymeric material, having fluorescence emissions between about 450 nm and about 2500 nm; and a liquid or solid vehicle. The vehicle is present in a ratio to achieve an ink viscosity, surface tension effective, drying time and other printing parameters used for printing processes.11-13-2008
20090108236Paste composition for plasma display device and associated methods - A composition for a plasma display device includes inorganic material particles, a composite of an acidic dispersant and a basic dispersant, a binder, and a solvent.04-30-2009
20100133471DENDRON-TETHERED AND TEMPLATED QUANTUM DOTS ON CARBON NANOTUBES - The present invention provides an example for the construction of stable quantum dots, such as CdS quantum dots, on the surface of carbon nanotubes (CNTs) templated and stabilized, such as by attached 1→3 C-branched amide-based dendrons. The construction and method of preparation is applicable to both single- and multi-walled carbon nanotubes, other types of appropriately modified polymeric and oligomeric materials, along with the use of many other types of dendrons, and other materials capable of forming quantum dots.06-03-2010
20110017952STRUCTURES INCORPORATING POLYMER-INORGANIC PARTICLE BLENDS - Polymer-inorganic particle blends are incorporated into structures generally involving interfaces with additional materials that can be used advantageously for forming desirable devices. In some embodiments, the structures are optical structures, and the interfaces are optical interfaces. The different materials at the interface can have differences in index-of-refraction to yield desired optical properties at the interface. In some embodiments, structures are formed with periodic variations in index-of-refraction. In particular, photonic crystals can be formed. Suitable methods can be used to form the desired structures.01-27-2011
20110042618SYSTEMS AND METHODS FOR HANDLING AND/OR ISOLATING NANOTUBES AND OTHER NANOSTRUCTURES - Systems and methods related to handling and/or isolating nanotubes and other nanostructures are generally described. In some embodiments, a polymer can be exposed to a collection of agglomerated nanostructures to produce individuated nanostructures. The polymer can comprise one or more pendant groups capable of participating in a pi-pi interaction with at least a portion of the agglomerated nanostructures to produce individuated nanostructures. Individuated nanostructures can be isolated from nanostructures that remain agglomerated. In some cases, individuated nanostructures can be freeze dried to provide, for example, a plurality of nanostructures in solid form. The systems and methods described herein may be so effective in maintaining separation between individuated nanostructures that pluralities of dried nanostructures can be re-suspended in a fluid after they are dried, in some cases with relatively low forces applied during re-suspension.02-24-2011
20110114891INK COMPOSITION - An ink composition comprising a microparticulate fluorescent material which can emit a high brightness fluorescent light by ultraviolet ray and has a predetermined nanosize is provided. The ink composition comprises a microparticulate fluorescent material represented by the formula YVO05-19-2011
20110240922SEMICONDUCTOR NANOCRYSTAL AND METHOD OF PREPARING THE SAME - A method of preparing a semiconductor nanocrystal including a core or a core and a shell. The method includes contacting (A) a Group II precursor bound with phosphine, a Group III precursor bound with phosphine, or a mixture thereof, and (B) a Group V compound, a Group VI compound, or a mixture thereof, to provide the core or the core and the shell of the semiconductor nanocrystal.10-06-2011
20090212257Photoluminescent Sheet - A photoluminescent sheet is disclosed. A photoluminescent sheet that includes a matrix resin layer, which is a thermosetting resin; a phosphor, which is included in the matrix resin layer and which converts the wavelength of light emitted from a blue LED; a curing agent, which is included in the matrix resin layer and which cures liquid thermosetting resin; and an additive, which is included in the matrix resin layer and which disperses the phosphor uniformly within the matrix resin layer, can implement white light from light having wavelengths corresponding to blue color.08-27-2009
20090212258SEMICONDCUTOR NANOPARTICLE CAPPING AGENTS - Embodiments of the invention involve semiconductor nanoparticle capping ligands, their production and use. Ligands may have the formula08-27-2009
20120241673Tunable Fluorescent Gold Nanocluster - The present invention discloses a tunable fluorescent gold nanocluster. The tunable fluorescent gold nanocluster is formed by mixing gold trichloride (AuCl09-27-2012
20100065780SUBMICRON RARE-EARTH BORATES AND PREPARATION/LUMINOSHORS THEREOF - Liquid phase suspensions of substantially monocrystalline rare-earth borate particles, the mean size thereof ranging from 100 to 400 nm, are prepared by roasting a rare earth borocarbonate or hydroxyborocarbonate at a temperature which is sufficient for forming a borate and obtaining a product whose specific surface area is equal to or greater than 3 m03-18-2010
20100308275Inorganic particle conjugates - The ionic conjugates include an inorganic particle electrostatically associated with a macromolecule which can interact specifically with predetermined chemical species or biological targets.12-09-2010
20090127510Fine particle and red fluorescence conversion medium using the same - Particles including at least a metal oxide represented by the following formula and having a number-average particle diameter of 100 nm or less;05-21-2009
20090050850Binder resin composition and inorganic fine particle-dispersed paste composition - It is an object of the present invention to provide a binder resin composition usable for an inorganic fine particle-dispersed paste composition which is excellent in thixotropy and storage stability, has scarcely changeable screen printability with the lapse of time, and can be fired at a low temperature, and to provide the inorganic fine particle-dispersed paste composition.02-26-2009
20120168679METHOD OF MODIFYING PHOSPHOR AND PHOSPHOR COMPOSITION AND MANUFACTURING METHOD OF THE SAME AND PHOSPHOR SOLUTION - A method of modifying a phosphor and a phosphor composition and a manufacturing method of the same and a phosphor solution are provided. The phosphor composition includes a silicone resin and a modified phosphor. The modified phosphor includes a phosphor and a nano-silica particle. The nano-silica particle is adhered to the phosphor. A weight ratio of the modified phosphor to the silicone resin is substantially between 1:0.005 and 1:0.1.07-05-2012
20110095232Phosphorescent/fluorescent compositions and methods - Phosphor and fluorescent compositions and methods of producing them are provided.04-28-2011
20110260111QUANTUM DOTS, METHODS OF MAKING QUANTUM DOTS, AND METHODS OF USING QUANTUM DOTS - Embodiments of the present disclosure provide: methods of making a quantum dot, quantum dots, and the like.10-27-2011
20080217584SUBSTRATE SUCH AS PAVING BRICK WITH NON-POWERED PHOTOLUMINESCENT PORTION - A non-powered photoluminescent paving brick includes a substrate defining one of a cavity and a channel that extends from one end to an opposite end of the substrate. A photoluminescent portion includes a light transmissive resin including a suspension of photoluminescent particles. The photoluminescent portion is arranged in the one of the cavity and the channel and wherein the light transmissive resin has an exposed outer surface that directly receives light.09-11-2008
20110186782LOADING QUANTUM DOTS INTO THERMO-RESPONSIVE MICROGELS BY REVERSIBLE TRANSFER FROM ORGANIC SOLVENTS TO WATER - Method for the preparation of inorganic-NP-composite microgels is based on the reversible transfer of microgels between water and an organic solvent such as tetrahydrofuran (THF). The method is used to produce semiconductor nanocrystals, often referred to as quantum dots (QDs) which are well known for their unique optical, electrical, magnetic and catalytic properties, as the inorganic NPs, recognizing that the best quality QDs are synthesized by a high temperature process in organic media, and have their surface covered with hydrophobic ligands (such as trioctylphosphine oxide, TOPO) that render the NPs insoluble in an aqueous solution.08-04-2011
20110147664COATED PHOSPHORS, METHODS OF MAKING THEM, AND ARTICLES COMPRISING THE SAME - Compositions comprising a phosphor and a compound having the formula R06-23-2011
20100019204SURFACE TREATMENT METHOD FOR NANOPARTICLES - The present invention relates to a surface treatment method for nanoparticles. The present invention particularly relates to a surface treatment method for nanoparticles, which increases the dispersion ability of the nanoparticles in a solvent, and in which a mixture made of a polyvalent acid and a nitrogen-containing base, such as an amine, or a salt of a polyvalent acid and a nitrogen-containing base, such as ammonium salt, or also a corresponding betaine, is used. The present invention also relates to surface-modified nanoparticles, which can be obtained by the inventive method.01-28-2010
20100283007Flexible luminescent paints - Flexible luminescent paints are prepared from physical blends of hybrid epoxy acrylic resins, cementicious acrylic resins and optionally pure acrylic coating resins together with monopropylene glycol, suspension additives, rheological additives and photoluminescent pigments. The luminescent paints exhibit bright, even and long-lasting photoluminescent afterglow, excellent flexibility in both thin and thick layers, and are suitable for spraying, brushing, rolling and screen printing. Optional fluorescent pigments may be utilized to give daylight coloration and up-convert the photoluminescent emissions to the fluorescent emissions color.11-11-2010
20120037850SURFACE-MODIFIED SILICATE LUMINOPHORES - A surface-modified silicate luminophore includes a silicate luminophore and a coating includes at least one of (a) a fluorinated coating including a fluorinated inorganic agent, a fluorinated organic agent, or a combination of fluorinated inorganic and organic agents, the fluorinated coating generating hydrophobic surface sites and (b) a combination of the fluorinated coating and at least one moisture barrier layer. The moisture barrier layer includes MgO, Al02-16-2012
20120305845SEMICONDUCTOR NANOPARTICLE PRODUCTION METHOD, SEMICONDUCTOR NANOPARTICLE, AND PHOSPHOR USING THE SAME - A method of producing a semiconductor nanoparticle of the present invention includes a core formation step of heating a first solution including group 13 element-containing fatty acid salt, a group 13 element-containing halide, and alkali metal amide to obtain a nanoparticle core made of a group 13 element-containing nitride, and a shell formation step of heating a second solution including the nanoparticle core, group 13 element-containing fatty acid salt, and alkali metal amide to obtain a semiconductor nanoparticle having the nanoparticle core covered with a shell layer made of a group 13 element-containing nitride.12-06-2012
20120205586INDIUM PHOSPHIDE COLLOIDAL NANOCRYSTALS - A method of making a colloidal solution of indium phosphide semiconductor nanocrystals, includes forming a first solution by combining solvents and ligands; and heating the first solution to a temperature equal to or higher than 290° C. and, while heating, adding to the first solution, a second solution containing trialkylindium, a phosphorus precursor and solvents and ligands so that a reaction takes place that forms a colloidal solution of indium phosphide semiconductor nanocrystals. The method further includes forming core shell indium phosphide semiconductor nanocrystals by forming semiconducting shells on the nanocrystals.08-16-2012
20090050851FLUORESCENT SUBSTANCE CONTAINING RARE EARTH METAL, LUMINOUS COMPOSITION COMPRISING THE SAME, PROCESS FOR MANUFACTURING THEREOF, AND LIGHT-EMITTING ELEMENT COMPRISING THE FLUORESCENT SUBSTANCE - The present invention provides a fluorescent substance excellent in emission intensity and in emission efficiency. The substance can be excited by light at a longer wavelength than ever. The present invention also provides a luminous composition comprising the fluorescent substance and a light-emitting element using the substance. The fluorescent substance comprises a rare earth metal and a phosphine oxide ligand which coordinates to said rare earth metal and said ligand containing at least one siloxane bond in its structure. The fluorescent substance can be produced from a reaction between a compound having a siloxane bond and a rare earth complex coordinated by a phosphine oxide ligand. The luminous composition comprises the fluorescent substance.02-26-2009
20120205587C70 CUBE WITH ENHANCED PHOTOLUMINESCENCE AND METHOD FOR PREPARING THE SAME - Disclosed in that a fullerene aggregate and a method for preparing the same, and the fullerene aggregate including a cube-shaped crystalline C08-16-2012
20120056131Glow-in-the dark for a Lighting Source including Flexible Packaging for such Light Source - The use of glow-in-the-dark materials, such as phosphors or long-persistent glow materials which incorporate the use of rare earth elements (i.e. “glow materials”); wherein the glow crystal sizes are 0.5 mm to 10.0 mm in size and to be contained or placed in various forms such as solutions, polymer matrixes both rigid and non-rigid, containers, or flexible vacuum pouches or combinations of same wherein the concentration and size of such glow particles create a light source not heretofore achieved by prior art.03-08-2012
20120012791Alumina, Luminophores And Mixed Compounds, And Associated Preparation Processes - The present invention relates to the synthesis of luminophores and of reflective alumina for optimizing the emissive properties of a fluorescent layer.01-19-2012
20100270504PHOTOLUMINESCENT METAL NANOCLUSTERS - Nanoclusters comprising a metal core and outer ligand layer and methods of making and use them are disclosed. The nanoclusters have properties which are tunable by virtue of adjusting various aspects of the reaction.10-28-2010
20110089376DISPERSANT HAVING MULTIFUNCTIONAL HEAD AND PHOSPHOR PASTE COMPOSITION COMPRISING THE SAME - Disclosed is a dispersant having a multifunctional head, and a phosphor paste composition comprising the dispersant. The dispersant has a multifunctional head that comprises an acidic group, a basic group and an aromatic group, thereby enhancing an affinity for the surface of phosphor particles and improving dispersibility.04-21-2011
20120313045UV COATING COMPOSITION FOR LED COLOR CONVERSION - A UV coating composition for LED color conversion including: 25 wt % to 97 wt % of a UV curable resin; and 3 wt % to 75 wt % of a phosphor. The composition enables emission of white light using only a white LED lens or a light guide plate without affecting a blue, violet or UV LED, thereby eliminating a need for a white LED. Further, users of a LED including the composition can perform direct and easy adjustment of the intensity of white light to obtain a desired intensity by replacing a conventional LED lens. The LED lens provides soft and comfortable lighting which effectively reduces glare caused by high brightness white LED lighting. Moreover, the composition slows deterioration of a lighting device and makes possible a light guide plate having a simple and thin structure.12-13-2012
20120187341Markers for Protection Valuable Liquid and Solid Materials - A marker for protection valuable liquid and solid materials comprising organic or nonoraganic liquid solvents as dispersed medium, surface active substances on nanomaker, characterized in that nanomarker is a homogeneous mixture of two or more different nanoluminophors, favourable chosen from metals, nanocrystalline metal oxides -A07-26-2012
20080296534Core-Alloyed Shell Semiconductor Nanocrystals - The invention relates to a core-alloyed shell semiconductor nanocrystal comprising: (i) a core of a semiconductor material having a selected band gap energy; (ii) a core-overcoating shell consisting of one or more layers comprised of an alloy of the said semiconductor of (i) and a second semiconductor; (iii) and an outer organic ligand layer, provided that the core semiconductor material is not HgTe. Preferably, the core semiconductor material is PbSe and the alloy shell semiconductor material has the PbSexS1-x structure.12-04-2008
20110226995COMPOSITIONS AND METHODS FOR FUNCTIONALIZING OR CROSSLINKING LIGANDS ON NANOPARTICLE SURFACES - This disclosure provides novel ways to modify/functionalize, including crosslink, ligands in the surface coating or molecules in other coatings on a nanoparticle, by using radical addition reactions to add a reactant group onto a ligand/molecule of a nanoparticle. Examples include using a functionalized benzophenone that can be attached or crosslinked to a ligand in the surface coating of a nanocrystal by photochemically-initiated radical addition.09-22-2011
20120080646LUMINESCENT SYSTEMS BASED ON THE ISOLATION OF CONJUGATED PI SYSTEMS AND EDGE CHARGE COMPENSATION WITH POLAR MOLECULES ON A CHARGED NANOSTRUCTURED SURFACE - A photoluminescent or electroluminescent system and method of making a non-luminescent nanostructured material into such a luminescent system is presented. The method of preparing the luminescent system, generally, comprises the steps of modifying the surface of a nanostructured material to create isolated regions to act as luminescent centers and to create a charge imbalance on the surface; applying more than one polar molecule to the charged surface of the nanostructured material; and orienting the polar molecules to compensate for the charge imbalance on the surface of the nanostructured material. The compensation of the surface charge imbalance by the polar molecules allows the isolated regions to exhibit luminescence.04-05-2012
20120326089PHOTOLUMINESCENT NANOPARTICLES AND METHOD FOR PREPARATION - Methods for preparing photoluminescent silicon nanoparticles and compositions of such silicon nanoparticles having unique properties are provided. Methods of preparation include the use of low pressure high frequency pulsed plasma reactors and direct fluid capture of the nanoparticles formed in the reactor.12-27-2012
20120280178PHOTOLUMINESCENT GRANULATE AND METHOD FOR PRODUCTION THEREOF - A granulate made of a cured mixture comprising a transparent true light matrix in which at least one photoluminescent luminous pigment and a transparent filler material are present, wherein the filler material comprises a grain size of less than 30μ and/or a grain size between 70μ and 1.2 mm. The granulate may be produced by producing a hardenable binder mixture, introducing and mixing a photoluminescent luminous pigment into the hardenable binder mixture, dispersing a filler in the mixture, and milling the hardened mixture to form the granulate.11-08-2012
20120286208PHOSPHOR INK COMPOSITION - The present invention provides phosphor inks configured to achieve high efficiency in converting LED light from one wavelength to another. The phosphor ink composition for deposition on an LED device comprises a phosphor component having nano-phosphor particles on the order of 100 to 1000 nanometers, and a curable resin component. In particular, the nano-phosphor particles are uniformly dispersed throughout the ink composition. The nano-phosphor particles may be formed by a size reduction process carried out on larger phosphor particles on the order of 1 to 50 micrometers. Preferably, the size reduction process is based on solvent wet milling. Methods for preparing the phosphor inks based on forming the nano-phosphor particles from larger particles by solvent wet milling are also provided.11-15-2012
20100207067PROCESS FOR LABELLING MATERIALS BASED ON ORGANIC THERMOPLASTIC OR THERMOSETTING POLYMER MATRICES - Process for labelling a material based on at least one organic thermoplastic or thermosetting polymer matrix comprising a step that consists in incorporating therein, by dispersion during its manufacture or its formation, at least one compound based on at least one photoluminescent rare earth in a concentration that renders this compound detectable under UV irradiation, said compound being a coordination polymer that is in the form of a crystallite obtained by reaction of at least one photoluminescent rare-earth ion with at least one unsaturated organic ligand.08-19-2010
20130009098DOPED ALUMINUM OXIDES - A process of preparing a doped aluminum oxide, includes providing a solution comprising 8-hydroxyquinoline; an aluminum precursor; a dopant precursor, and a reaction solvent; isolating a precipitate from the solution; and calcining the precipitate to form the doped aluminum oxide. Compositions may be prepared which include tris(8-hydroxyquinolinato) aluminum and (8-hydroxyquinolinato)01-10-2013
20110140046Colloidal Nanocrystal Ensembles with Narrow LInewidth Band Gap Photoluminescence and Methods of Synthesizing Colloidal Semiconductor Nanocrystals - A method of synthesizing colloidal semiconductor nanocrystals involves contacting a source of at least one semi-conductor cation element (Group 11-14, more preferably Group 12-14, more preferably 12 or 14, more preferably Cd, Zn, Hg or Pb, most preferably Cd) with a source of at least one Group 15, or 16 element in the presence of a ligand forming compound containing a carboxylic acid moiety in a reaction medium comprising a solvent that is substantially noncoordinating with respect to the at least one cation, the ligand forming compound and the source of at least one cation element having a molar ratio of 1:1 or less. The cation element source is preferably bonded to two low carbon acids. Some of the low carbon acids are substituted with the ligand forming compound to produce a cation precursor that is more soluble in the noncoordinating solvent. The method produces novel ensembles of colloidal semiconductor nanocrystals that have narrow linewidth absorption and bandgap photoluminescence spectra indicating that the colloidal semiconductor nanocrystals are of substantially a single size. The single size families are produced for CdSe, CdTe, CdS, CdSeTe, and CdP.06-16-2011
20130168607Artificial Marble Having Natural Textures and Luminescent Patterns and Method of Preparing the Same - An artificial marble includes unsaturated polyester resin (A), compound including silica (B), and luminescent pigment (C). An artificial marble according to a second embodiment includes about 70 to about 95% by weight of a non-luminescent base material (I) comprising unsaturated polyester resin (A), compound including silica (B), and organic/inorganic pigment (C) and about 5 to about 30% by weight of a luminescent amorphous pattern part (II) comprising unsaturated polyester resin (A), compound including silica (B), and luminescent pigment (D). An artificial marble according to a third embodiment includes unsaturated polyester resin (A), compound including silica (B), and amorphous luminescent chip (C).07-04-2013
20080210907Ionic Organic Compound - An ionic organic compound having a repeating unit of formula (I) can be synthesized easily from a readily available organic compound through a small number of reaction steps, can be produced without any purification technique such as chromatography, and can be used in a quite small amount for gelation of water or an ionic liquid without any other auxiliary solvent:09-04-2008
20130181167SILICONE RESIN COMPOSITION, LUMINOUS SUBSTANCE-CONTAINING WAVELENGTH-CONVERTING FILM, AND CURED PRODUCT THEREOF - There is disclosed a silicone resin composition includes (A-1) a ladder structure-containing polyorganosiloxane having a ladder structure and having two or more alkenyl groups in one molecule, (B-1) a ladder structure-containing hydrogen polyorganosiloxane having a ladder structure and having hydrogen atoms that are bonded to two or more silicon atoms in one molecule, and/or (B-2) a hydrogen polyorganosiloxane having two or more hydrogen atoms that are bonded to silicon atoms in one molecule. As a result, there is provided the silicone resin composition as a light-emitting device protective material having a high transparency, heat resistance, light resistance and gas barrier.07-18-2013

Patent applications in class INORGANIC LUMINESCENT COMPOSITIONS WITH ORGANIC NONLUMINESCENT MATERIAL