| Patent application number | Description | Published |
|---|
| 20080230748 | DISPERSANT 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. | 09-25-2008 |
| 20080296683 | CARBON NANOTUBE HAVING IMPROVED CONDUCTIVITY, PROCESS OF PREPARING THE SAME, AND ELECTRODE COMPRISING THE CARBON NANOTUBE - Provided are a method of doping carbon nanotubes, p-doped carbon nanotubes prepared using the method, and an electrode, a display device or a solar cell including the carbon nanotubes. Particularly, a method of doping carbon nanotubes having improved conductivity by reforming the carbon nanotubes using an oxidizer, doped carbon nanotubes prepared using the method, and an electrode, a display device or a solar cell including the carbon nanotubes are provided | 12-04-2008 |
| 20080297044 | Method for manufacturing metal sulfide nnocrystals using thiol compound as sulfur precursor - A metal sulfide nanocrystal manufactured by a method of reacting a metal precursor and an alkyl thiol in a solvent, wherein the alkyl thiol reacts with the metal precursor to form the metal sulfide nanocrystals, wherein the alkyl thiol is present on the surface of the metal sulfide nanocrystal, wherein the alkyl thiol is bonded to the sulfur crystal lattice. A metal sulfide nanocrystal manufactured with a core-shell structure by a method of reacting a metal precursor and an alkyl thiol in a solvent to form a metal sulfide layer on the surface of a core, wherein the alkyl thiol is present on the surface of the metal sulfide nanocrystal, wherein the alkyl thiol is bonded to the sulfur crystal lattice. These metal sulfide nanocrystals can have a uniform particle size at the nanometer-scale level, selective and desired crystal structures, and various shapes. | 12-04-2008 |
| 20080311029 | Method of preparing cadmium sulfide nanocrystals emitting light at multiple wavelengths, and cadmium sulfide nanocrystals prepared by the method - A cadmium sulfide nanocrystal, wherein the cadmium sulfide nanocrystal shows maximum luminescence peaks at two or more wavelengths and most of the atoms constituting the nanocrystal are present at the surface of the nanocrystal to form defects. | 12-18-2008 |
| 20080311424 | CARBON NANO-TUBE (CNT) THIN FILM COMPRISING AN AMINE COMPOUND, AND A MANUFACTURING METHOD THEREOF - A carbon nano-tube CNT thin film and a manufacturing method thereof are provided. In detail, the CNT thin film comprises a plastic substrate; and a CNT composition being coated over the plastic substrate, in which the CNT composition includes a CNT; and an amine compound of boiling point lower than 150° C. used as a dispersion solvent. When the CNT composition is coated over the plastic substrate, an amine compound is contained in its dispersion liquid. This amine compound is then removed after the CNT composition is coated over the plastic substrate. | 12-18-2008 |
| 20090008712 | CARBON NANO-TUBE (CNT) THIN FILM COMPRISING METALLIC NANO-PARTICLES, AND A MANUFACTURING METHOD THEREOF - Disclosed is a carbon nanotube (CNT) thin film having metallic nanoparticles. The CNT thin film includes a plastic transparent substrate and a CNT composition coated on the substrate. The CNT composition includes a CNT and metallic nanoparticles distributed on the CNT surface. The plastic transparent substrate is flexible. The metallic nanoparticles are formed by heating a metallic precursor adsorbed in the CNT surface. A method of manufacturing the CNT thin film having metallic nanoparticles is also disclosed. A CNT-dispersed solution is prepared by mixing a CNT with a dispersant or a dispersion solvent. The CNT-dispersed solution is used to form a CNT thin film. Metallic precursors are implanted in the CNT thin film. Then, a heat-treatment is applied to transform the metallic precursors into metallic particles including metallic nanoparticles. | 01-08-2009 |
| 20090022650 | CARBON NANO-TUBE HAVING ELECTRONS INJECTED USING REDUCING AGENT, METHOD FOR MANUFACTURING THE SAME AND ELECTRICAL DEVICE USING THE SAME - Disclosed herein are methods for manufacturing a carbon nanotube (CNT) having electrons that are injected, with treatment with a reducing agent, a CNT manufactured according to the method, and an electric device comprising the CNT a CNT manufactured according to the method. The electronic characteristics such as the doped level and the band gap of the CNT having electrons injected therein can be widely and easily adjusted by changing the treatment conditions of the reducing agent. | 01-22-2009 |
| 20090041652 | METHOD FOR SEPARATING CARBON NANOTUBES, METHOD FOR DISPERSING CARBON NANOTUBES AND COMPOSITIONS USED FOR THE METHODS - The separation of carbon nanotubes into metallic carbon nanotubes and semiconducting carbon nanotubes is made to be possible simultaneously with the dispersion of the carbon nanotubes by using viologen. | 02-12-2009 |
| 20090236983 | METHOD FOR PREPARING MULTILAYER OF NANOCRYSTALS, AND ORGANIC-INORGANIC HYBRID ELECTROLUMINESCENCE DEVICE COMPRISING MULTILAYER OF NANOCRYSTALS PREPARED BY THE METHOD - A method for preparing a multilayer of nanocrystals. The method includes the steps of (i) coating nanocrystals surface-coordinated by a photosensitive compound, or a mixed solution of a photosensitive compound and nanocrystals surface-coordinated by a material miscible with the photosensitive compound, on a substrate, drying the coated substrate, and exposing the dried substrate to UV light to form a first monolayer of nanocrystals, and (ii) repeating the procedure of step (i) to form one or more monolayers of nanocrystals on the first monolayer of nanocrystals. Further, an organic-inorganic hybrid electroluminescence device using a multilayer of nanocrystals prepared by the method as a luminescent layer. The luminescent efficiency and luminescence intensity of the electroluminescence device can be enhanced, and the electrical properties of the electroluminescence device can be controlled by the use of the multilayer of nanocrystals as a luminescent layer. | 09-24-2009 |
| 20090239074 | Method of preparing cadmium sulfide nanocrystals emitting light at multiple wavelengths, and cadmium sulfide nanocrystals prepared by the method - A semiconductor nanocrystal, wherein the semiconductor nanocrystal shows maximum luminescence peaks at two or more wavelengths and most of the atoms constituting the nanocrystal are present at the surface of the nanocrystal to form defects | 09-24-2009 |
| 20090267050 | METHOD OF PREPARING CADMIUM SULFIDE NANOCRYSTALS EMITTING LIGHT AT MULTIPLE WAVELENGTHS, AND CADMIUM SULFIDE NANOCRYSTALS PREPARED BY THE METHOD - A cadmium sulfide nanocrystal, wherein the cadmium sulfide nanocrystal shows maximum luminescence peaks at two or more wavelengths and most of the atoms constituting the nanocrystal are present at the surface of the nanocrystal to form defects. | 10-29-2009 |
| 20100019211 | NANOCOMPOSITE MATERIAL AND METHOD OF MANUFACTURING THE SAME - A nanocomposite material and a method of manufacturing the same are disclosed. The nanocomposite material includes a plurality of nanoparticles coated with a metal oxide, and a matrix of the metal oxide immobilizing the nanoparticles that are dispersed therein. The nanocomposite material is manufactured such that macro- or micro-scale cracks are prevented or effectively prevented, light stability is enhanced over a light-emitting period, and light brightness is improved. | 01-28-2010 |
| 20100032737 | Nano-magnetic memory device and method of manufacturing the device - A nano-magnetic memory device capable of writing/reading multi data in the nano-magnetic memory cell by controlling an amount of an induced current which is formed after a magnetic nanodot is perturbed and rearranged according to a word line current flowing from the first electrode through a nanowire of the nano-magnetic memory device to the second electrode. Consequently, a size of the memory device is reduced and a density of the memory device may be improved by providing a simplified nano-magnetic memory device of which a cell size is smaller. | 02-11-2010 |
| 20100173434 | NANOCRYSTAL ELECTROLUMINESCENCE DEVICE AND FABRICATION METHOD THEREOF - A nanocrystal electroluminescence device comprising a polymer hole transport layer, a nanocrystal light-emitting layer and an organic electron transport layer wherein the nanocrystal light-emitting layer is independently and separately formed between the polymer hole transport layer and the organic electron transport layer. According to the nanocrystal electroluminescence device, since the hole transport layer, the nanocrystal light-emitting layer and the electron transport layer are completely separated from one another, the electroluminescence device provides a pure nanocrystal luminescence spectrum having limited luminescence from other organic layers and substantially no influence by operational conditions, such as voltage. Further, a method for fabricating the nanocrystal electroluminescence device. | 07-08-2010 |
| 20100252806 | CARBON NANO-TUBE (CNT) LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME - Disclosed are a carbon nano-tube (CNT) light emitting device and a method of manufacturing the same. Specifically, the CNT light emitting device comprises: a CNT thin film formed using a CNT dispersed solution; a n-doping polymer formed on one end of the CNT thin film; a p-doping polymer formed on the other end of the CNT thin film; and a light emitting part between the n-doping polymer and the p-doping polymer. In addition, the method of manufacturing a CNT light emitting device comprises steps of: mixing CNTs with a dispersing agent or dispersing solvent to prepare a CNT dispersed solution; forming a CNT thin film using the CNT dispersed solution; coating a n-doping polymer on one end of the CNT thin film; and coating a p-doping polymer on the other end of the CNT thin film. According to the invention, the n-doping polymer and the p-doping polymer are respectively coated on the CNT having a CNT random network structure to implement a p-n junction, thereby implementing a light emitting device in a simple and low-priced process. | 10-07-2010 |
| 20100279001 | CARBON NANO-TUBE (CNT) THIN FILM TREATED WITH CHEMICAL HAVING ELECTRON WITHDRAWING FUNCTIONAL GROUP AND MANUFACTURING METHOD THEREOF - Disclosed are a carbon nano-tube (CNT) thin film treated with chemical having an electron withdrawing functional group and a manufacturing method thereof. Specifically, the CNT thin film comprises a CNT composition to be applied on a plastic substrate. The CNT composition comprises a CNT; and chemical connected to the CNT and having an electron withdrawing functional group. In addition, the method for manufacturing a CNT thin film comprises steps of preparing a CNT; treating the CNT with chemical having an electron withdrawing functional group; mixing the CNT treated with the chemical with a dispersing agent or dispersing solvent to prepare a CNT dispersed solution; and forming a CNT thin film with the CNT dispersed solution. According to the CNT thin film and the manufacturing method thereof, a resistance of an electrode is decreased to improve the electric conductivity of the electrode. | 11-04-2010 |
| 20110003907 | DISPERSANT FOR CARBON NANOTUBES AND CARBON NANOTUBE COMPOSITION COMPRISING THE SAME - The present invention discloses a dispersant for carbon nanotubes having excellent dispersion ability and to a carbon nanotube composition including the dispersant. In the dispersant, the heads and tails of the dispersant are regioregularly arranged in one direction, and the structural properties of the dispersant are controlled such that the ratio of heads to tails is 1 or more, thereby effectively stabilizing and dispersing carbon nanotubes in various dispersion media, such as an organic solvent, water, a mixture thereof and the like, compared to conventional dispersants. | 01-06-2011 |
| 20110086176 | CARBON NANOTUBE HAVING IMPROVED CONDUCTIVITY, PROCESS OF PREPARING THE SAME, AND ELECTRODE COMPRISING THE CARBON NANOTUBE - Provided are a method of doping carbon nanotubes, p-doped carbon nanotubes prepared using the method, and an electrode, a display device or a solar cell including the carbon nanotubes. Particularly, a method of doping carbon nanotubes having improved conductivity by reforming the carbon nanotubes using an oxidizer, doped carbon nanotubes prepared using the method, and an electrode, a display device or a solar cell including the carbon nanotubes are provided | 04-14-2011 |
| 20110089376 | DISPERSANT 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 |
| 20110121260 | QUANTUM DOT PHOSPHOR FOR LIGHT EMITTING DIODE AND METHOD OF PREPARING THE SAME - Disclosed herein is a quantum dot phosphor for light emitting diodes, which includes quantum dots and a solid substrate on which the quantum dots are supported. Also, a method of preparing the quantum dot phosphor is provided. Since the quantum dot phosphor of the current invention is composed of the quantum dots supported on the solid substrate, the quantum dots do not aggregate when dispensing a paste obtained by mixing the quantum dots with a paste resin for use in packaging of a light emitting diode. Thereby, a light emitting diode able to maintain excellent light emitting efficiency can be manufactured. | 05-26-2011 |
