Patent application number | Description | Published |
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 |
20090061149 | CARBON NANO-TUBE FILM WITH A TRANSFORMED SUBSTRATE STRUCTURE AND A MANUFACTURING METHOD THEREOF - A carbon nanotube (CNT) film having a transformed substrate structure and a manufacturing method thereof. The CNT film includes a transparent substrate, a plurality of three-dimensional (3D) structures formed distant from each other on the transparent substrate, and carbon nanotubes (CNTs) deposited on the transparent substrate where the plurality of 3D structures is not formed. The method includes forming a plurality of 3D structures distant from each other on a transparent substrate, and depositing a CNT solution on the substrate with the plurality of 3D structures formed thereon, wherein the CNT solution is deposited into a portion of the transparent substrate where the 3D structures are not formed. Thus, the deposition mechanism of the CNT solution is controlled to thereby increase the transparency of the CNT film and the electrical conductivity of an electrode including the CNT film. | 03-05-2009 |
20090065734 | HEAT TRANSFER MEDIUM AND HEAT TRANSFER METHOD USING THE SAME - Disclosed are a heat transfer medium and a heat transfer method that uses the heat transfer medium. The heat transfer medium comprises a light-transparent substrate coated with a plurality of nano particles. The nano particles absorb light incident thereon to thereby produce heat, which is transferred to a target object to be heated. Nano particles can be applied onto a target object. After heating, the particles are removed by etching. Nano particles can be selectively applied to the light-transparent substrate or directly to a target object to be heat so as to localize heat-production and thus heat selective portions of the target object. | 03-12-2009 |
20090068374 | METHOD OF FABRICATING LIQUID FILM, METHOD OF ARRANGING NANO PARTICLES AND SUBSTRATE HAVING LIQUID THIN FILM FABRICATED USING THE SAME - A method of fabricating a liquid film is provided. The method comprises the steps of applying hydrophilic liquid onto a substrate with an electrode formed thereunder, covering the hydrophilic liquid with a protection film comprising hydrophobic liquid, dispersing surfactant for reducing the surface tension between the hydrophilic liquid and the protection film, and applying voltage to the hydrophilic liquid and the electrode to wet the substrate with the hydrophilic liquid. With the surfactant and the electro-wetting principle, a contact angle between the hydrophilic liquid and the substrate is controlled. The liquid film having a uniform thickness in nano size is thus formed on the substrate. The protection film prevents the evaporation of the liquid film in the air to thereby secure the stability of the liquid film. | 03-12-2009 |
20090252967 | CARBON NANOTUBE TRANSPARENT ELECTRODE AND METHOD OF MANUFACTURING THE SAME - A CNT transparent electrode may have a CNT layer consisting essentially of CNT only, together with a cover layer that may include conductive particles and a polymer. The cover layer may cover an upper and/or a lower portion of the CNT layer. The CNT transparent electrode including the CNT layer which essentially consists of CNT only and does not contain other materials such as a binder or a dispersing agent can exhibit excellent conductivity. When the CNT layer is covered by the cover layer, surface roughness, film uniformity, adhesion between the CNT transparent electrode and the substrate and stability in the process of applying the CNT transparent electrode to devices can be enhanced, compared to the case where only the CNT layer is used. | 10-08-2009 |
20090308520 | METHOD FOR EXFOLIATING CARBONIZATION CATALYST FROM GRAPHENE SHEET, METHOD FOR TRANSFERRING GRAPHENE SHEET FROM WHICH CARBONIZATION CATALYST IS EXFOLIATED TO DEVICE, GRAPHENE SHEET AND DEVICE USING THE GRAPHENE SHEET - A carbonization catalyst for forming graphene may be exfoliated from a graphene sheet by etching. A binder layer may be formed on the graphene sheet on which a carbonization catalyst is formed, to support and fix all or part of the graphene sheet. Further, the graphene sheet from which the carbonization catalyst is exfoliated may be transferred to a device. When exfoliating the carbonization catalyst from the graphene sheet, an acid may be used together with a wetting agent. | 12-17-2009 |
20100101710 | METHOD FOR REMOVING A CARBONIZATION CATALYST FROM A GRAPHENE SHEET AND METHOD FOR TRANSFERRING THE GRAPHENE SHEET - A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst. | 04-29-2010 |
20100102033 | METHOD FOR PREPARING NANOTUBES OF PIEZOELECTRIC MATERIAL AND NANOTUBES OF PIEZOELECTRIC MATERIAL OBTAINED THEREBY - A method for preparing nanotubes by providing nanorods of a piezoelectric material having an asymmetric crystal structure and by further providing hydroxide ions to the nanorods to etch inner parts of the nanorods to form the nanotubes. | 04-29-2010 |
20100133480 | CARBON-NANOTUBE N-DOPING MATERIAL AND METHODS OF MANUFACTURE THEREOF - A compound containing at least two pyridinium derivatives in its molecular structure and being in a reduced form thereof may be used as a CNT n-doping material. The compound may donate electrons spontaneously to CNTs to n-dope the CNTs, while being oxidized into its stable state. An n-doped CNT that is doped with the CNT n-doping material may maintain a stable n-doped state for a long time without being dedoped even in the air and/or water. Further, the n-doped state may be easily controlled when using the CNT n-doping material. | 06-03-2010 |
20100136414 | APPARATUS FOR STORING ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for storing energy may include: a plurality of nanowire cells electrically connected to each other; and a storage for storing electrical energy generated from the nanowire cells. Each of the plurality of nanowire cells may include: first and second electrodes disposed at an interval; and a nanowire, which is disposed between the first and the second electrodes and made of a piezoelectric material. The plurality of nanowire cells may be electrically connected, so that voltage or current may be increased. Therefore, wireless recharging of the storage connected to the nanowire cells with electrical energy may be enabled. | 06-03-2010 |
20100156249 | APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for generating electrical energy may include; a first electrode, a second electrode spaced apart from the first electrode, the second electrode having a substantially planar flat plate shape, a conductor which electrically connects the first and second electrodes, and a nanowire disposed on the first electrode, the nanowire including a deformable piezoelectric material, wherein a Schottky contact is formed between the nanowire and the second electrode as the nanowires is deformed. | 06-24-2010 |
20100156845 | VIBRATION TOUCH SENSOR, METHOD FOR VIBRATION TOUCH SENSING AND VIBRATION TOUCH SCREEN DISPLAY PANEL - A vibration touch sensor includes; a first substrate, a second substrate arranged to face the first substrate with a predetermined gap therebetween, a first electrode disposed on the first substrate, a second electrode disposed on the second substrate, a piezoelectric material layer disposed on one of the first electrode and the second electrode, wherein the piezoelectric material layer generates an electrical signal in response to an external touch applied to at least one of the first substrate and the second substrate, and a controller which receives the electrical signal generated from the piezoelectric material layer and generates a touch input signal, the controller controlling an alternating current voltage applied to at least one of the first electrode and the second electrode. | 06-24-2010 |
20100171092 | METHOD FOR CONTROLLING OPTIC INTERBAND TRANSITION OF CARBON NANOTUBES, THE CARBON NANOTUBES RESULTING THEREFROM AND DEVICES THAT COMPRISE THE CARBON NANOTUBES - A new single optical interband transition occurs at the corresponding p-doping state of the carbon nanotubes in the VIS-NIR region when the degree of p-doping of carbon nanotubes is increased beyond a certain degree. P-doped carbon nanotubes to exhibit the new single optical interband transition in the VIS-NIR region may be used for devices so as to improve sensitivity and selectivity of the devices. | 07-08-2010 |
20100178464 | METHOD FOR CHEMICAL MODIFICATION OF A GRAPHENE EDGE, GRAPHENE WITH A CHEMICALLY MODIFIED EDGE AND DEVICES INCLUDING THE GRAPHENE - A method for chemical modification of graphene includes dry etching graphene to provide an etched graphene; and introducing a functional group at an edge of the etched graphene. Also disclosed is graphene, including an etched edge portion, the etched portion including a functional group. | 07-15-2010 |
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 |
20100253184 | APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for generating electrical energy may include; a first electrode, a second electrode spaced apart from the first electrode, a nanowire which includes a piezoelectric material and is disposed on the first electrode, an active layer disposed on the first electrode, a conductive layer disposed on the active layer, and an insulating film disposed between the conductive layer and the nanowire, wherein the nanowire and the active layer are electrically connected to each other. A method for manufacturing an apparatus for generating electrical energy may include; disposing a nanowire including a piezoelectric material on a first electrode, disposing an active layer, which is electrically connected to the nanowire, on the first electrode, disposing an insulating film on the nanowire, disposing a conductive layer on the active layer, and disposing a second electrode in proximity to the nanowire and substantially opposite to the first electrode. | 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 |
20100316813 | CARBON NANO-TUBE FILM WITH A TRANSFORMED SUBSTRATE STRUCTURE AND A MANUFACTURING METHOD THEREOF - A carbon nanotube (CNT) film having a transformed substrate structure and a manufacturing method thereof. The CNT film includes a transparent substrate, a plurality of three-dimensional (3D) structures formed distant from each other on the transparent substrate, and carbon nanotubes (CNTs) deposited on the transparent substrate where the plurality of 3D structures is not formed. The method includes forming a plurality of 3D structures distant from each other on a transparent substrate, and depositing a CNT solution on the substrate with the plurality of 3D structures formed thereon, wherein the CNT solution is deposited into a portion of the transparent substrate where the 3D structures are not formed. Thus, the deposition mechanism of the CNT solution is controlled to thereby increase the transparency of the CNT film and the electrical conductivity of an electrode including the CNT film. | 12-16-2010 |
20110138610 | APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for generating electrical energy including a first electrode, a second electrode and one or more nanowires, and a method for manufacturing the apparatus for generating electrical energy. The second electrode may have a concave portion and a convex portion. The first electrode and the nanowire are formed of different materials. The nanowire is formed on the first electrode and is positioned between the first electrode and the second electrode. Because the nanowire is formed on the first electrode, the nanowire may be grown vertically and the uniformity and conductivity of the nanowires may be improved. When a stress is applied to the first electrode or the second electrode, the nanowire is deformed and an electric current is generated from the nanowire due to a piezoelectric effect of the nanowire and a Schottky contact between the nanowire and the electrode which makes contact with the nanowire. Accordingly, when the apparatus for generating electrical energy is bent or pressed in part, electrical energy is generated in response to the applied stress. | 06-16-2011 |
20110209816 | METHOD FOR REMOVING A CARBONIZATION CATALYST FROM A GRAPHENE SHEET AND METHOD FOR TRANSFERRING THE GRAPHENE SHEET - A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst. | 09-01-2011 |
20120024505 | HEAT TRANSFER MEDIUM AND HEAT TRANSFER METHOD USING THE SAME - A heat transfer medium and a heat transfer method using the same are provided. The heat transfer medium comprises a film coated with a plurality of nano particles, which absorb light incident to the film to thereby transfer heat to a target object. When nano particles are applied onto a target object, the particles are removed by etching, and when a transparent film coated thereon with the nano particles is positioned, as a mask, on a target object requiring heat transfer, and then is exposed to infrared rays, heat is transferred to a specified portion of a target object under the coated nano particles, thereby obtaining a heat transfer effect without leaving unnecessary heat generating materials. | 02-02-2012 |
20120132357 | METHOD FOR EXFOLIATING CARBONIZATION CATALYST FROM GRAPHENE SHEET, METHOD FOR TRANSFERRING GRAPHENE SHEET FROM WHICH CARBONIZATION CATALYST IS EXFOLIATED TO DEVICE, GRAPHENE SHEET AND DEVICE USING THE GRAPHENE SHEET - A carbonization catalyst for forming graphene may be exfoliated from a graphene sheet by etching. A binder layer may be formed on the graphene sheet on which a carbonization catalyst is formed, to support and fix all or part of the graphene sheet. Further, the graphene sheet from which the carbonization catalyst is exfoliated may be transferred to a device. When exfoliating the carbonization catalyst from the graphene sheet, an acid may be used together with a wetting agent. | 05-31-2012 |
20120132358 | METHOD FOR REMOVING A CARBONIZATION CATALYST FROM A GRAPHENE SHEET AND METHOD FOR TRANSFERRING THE GRAPHENE SHEET - A method for removing a carbonization catalyst from a graphene sheet, the method includes contacting the carbonization catalyst with a salt solution, which is capable of oxidizing the carbonization catalyst. | 05-31-2012 |
20120210565 | APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for generating electrical energy may include; a first electrode, a second electrode spaced apart from the first electrode, a nanowire which includes a piezoelectric material and is disposed on the first electrode, an active layer disposed on the first electrode, a conductive layer disposed on the active layer, and an insulating film disposed between the conductive layer and the nanowire, wherein the nanowire and the active layer are electrically connected to each other. A method for manufacturing an apparatus for generating electrical energy may include; disposing a nanowire including a piezoelectric material on a first electrode, disposing an active layer, which is electrically connected to the nanowire, on the first electrode, disposing an insulating film on the nanowire, disposing a conductive layer on the active layer, and disposing a second electrode in proximity to the nanowire and substantially opposite to the first electrode. | 08-23-2012 |
20120228557 | CARBON-NANOTUBE N-DOPING MATERIAL AND METHODS OF MANUFACTURE THEREOF - A compound containing at least two pyridinium derivatives in its molecular structure and being in a reduced form thereof may be used as a CNT n-doping material. The compound may donate electrons spontaneously to CNTs to n-dope the CNTs, while being oxidized into its stable state. An n-doped CNT that is doped with the CNT n-doping material may maintain a stable n-doped state for a long time without being dedoped even in the air and/or water. Further, the n-doped state may be easily controlled when using the CNT n-doping material. | 09-13-2012 |
20120279942 | METHOD FOR PREPARING NANOTUBES OF PIEZOELECTRIC MATERIAL AND NANOTUBES OF PIEZOELECTRIC MATERIAL OBTAINED THEREBY - A method for preparing nanotubes by providing nanorods of a piezoelectric material having an asymmetric crystal structure and by further providing hydroxide ions to the nanorods to etch inner parts of the nanorods to form the nanotubes. | 11-08-2012 |
20120292185 | METHOD OF FABRICATING LIQUID FILM, METHOD OF ARRANGING NANO PARTICLES AND SUBSTRATE HAVING LIQUID THIN FILM FABRICATED USING THE SAME - A method of fabricating a liquid film is provided. The method comprises the steps of applying hydrophilic liquid onto a substrate with an electrode formed thereunder, covering the hydrophilic liquid with a protection film comprising hydrophobic liquid, dispersing surfactant for reducing the surface tension between the hydrophilic liquid and the protection film, and applying voltage to the hydrophilic liquid and the electrode to wet the substrate with the hydrophilic liquid. With the surfactant and the electro-wetting principle, a contact angle between the hydrophilic liquid and the substrate is controlled. The liquid film having a uniform thickness in nano size is thus formed on the substrate. The protection film prevents the evaporation of the liquid film in the air to thereby secure the stability of the liquid film. | 11-22-2012 |
20130157034 | METHOD FOR CHEMICAL MODIFICATION OF A GRAPHENE EDGE, GRAPHENE WITH A CHEMICALLY MODIFIED EDGE AND DEVICES INCLUDING THE GRAPHENE - A method for chemical modification of graphene includes dry etching graphene to provide an etched graphene; and introducing a functional group at an edge of the etched graphene. Also disclosed is graphene, including an etched edge portion, the etched portion including a functional group. | 06-20-2013 |