Abstract: A method of synthesizing carbon nanotubes and a carbon nanotube synthesizing apparatus used for the same are provided. A catalyst is introduced into the reactor, and the catalyst in the reactor is selectively and locally heated by a heating method such as microwave irradiation, electromagnetic inductive heating, radio frequency heating or laser heating. Here, carbon source gas, carbon source gas and hydrogen sulfide gas, or carbon source gas and hydrogen gas or inert gas is supplied into the reactor, thereby growing carbon nanotubes from the locally heated catalyst.

Abstract: A field emitter having a high current density even at a low voltage using a carbon nanotube film, a method of manufacturing the same, and a field emission display device having the field emitter, are provided, The field emitter includes an insulating substrate. a thin film transistor formed on the insulating substrate, the thin film transistor having a semiconductor layer, a source electrode, a drain electrode and a gate electrode, and an electron emitting unit formed of a carbon nanotube film on the drain electrode of the thin film transistor The thin film transistor can be a coplanar-type transistor, a stagger-type transistor, or an inverse stagger-type transistor. The surface of a portion of the drain electrode, which contacts the carbon nanotube film, contains catalytic metal which is transition metal such as nickel or cobalt. Alternatively, the drain electrode itself can be formed of catalytic metal for carbon nanotube growth.

Abstract: A white light source using carbon nanotubes and a fabrication method thereof are provided. The white light source includes a metal film which is formed on a lower substrate and used as a cathode, a catalytic metal film formed on the metal film, carbon nanotubes which are vertically aligned on the catalytic metal film for emission of electrons in an applied electric field, spacers mounted on the catalytic metal film, and a transparent upper substrate which has a transparent electrode for an anode and a fluorescent body on the transparent electrode, and which is mounted on the spacers such that the fluorescent body faces the carbon nanotubes. The catalytic metal film is composed of isolated nano-sized catalytic metal particles. The carbon nanotubes are grown from each of the catalytic metal particles to be vertically aligned on the substrate by chemical vapor deposition.

Abstract: A supercapacitor using an electrode formed of a new material is provided. The supercapacitor includes two electrodes facing each other, the electrodes being composed of carbon nanotubes, an electrolyte provided between the two electrodes, and a separator for separating the electrolyte between the two electrodes.

Abstract: A method of synthesizing carbon nanotubes and a carbon nanotube synthesizing apparatus used for the same are provided. A catalyst is introduced into the reactor, and the catalyst in the reactor is selectively and locally heated by a heating method such as microwave irradiation, electromagnetic inductive heating, radio frequency heating or laser heating. Here, carbon source gas, carbon source gas and hydrogen sulfide gas, or carbon source gas and hydrogen gas or inert gas is supplied into the reactor, thereby growing carbon nanotubes from the locally heated catalyst.

Abstract: A supercapacitor using an electrode formed of a new material is provided. The supercapacitor includes two electrodes facing each other, the electrodes being composed of carbon nanotubes, an electrolyte provided between the two electrodes, and a separator for separating the electrolyte between the two electrodes.

Abstract: A method of synthesizing high purity carbon nanotubes vertically aligned over a large size substrate by thermal chemical vapor deposition (CVD). In the synthesis method, isolated nano-sized catalytic metal particles are formed over a substrate by etching, and purified carbon nanotubes are grown vertically aligned, from the catalytic metal particles by thermal CVD using a carbon source gas.

Abstract: An optical waveguide display having an embedded light source is provided. The optical waveguide display having an embedded light source includes a light source unit including a plurality of light sources for generating light according to an applied voltage and an optical waveguide display unit including a plurality of optical waveguides on which the light generated by the light source unit is incident. The light sources are aligned to be adjacent to the optical waveguides of the optical waveguide display unit in one panel so that the light generated by the light sources is directly incident on the optical waveguides. Accordingly, in the optical waveguide display having the embedded light source, optical loss is reduced. Also, the size of the outward shape of the display is reduced since a complicated optical structure can be simplified. The display is able to withstand a large amount of shock from the outside, and gray scale levels can be easily controlled.

Abstract: A thermal chemical vapor deposition apparatus and method of synthesizing carbon nanotubes using the same are provided. The apparatus includes a conveyer conveyer belt for sequentially receiving and conveying a plurality of substrates, a rotating unit for conveying the conveyer belt, a loading unit for sequentially loading the substrates onto the conveyer belt, an unloading unit installed to face the loading unit for unloading the substrates conveyed by the conveyer belt, a reactive gas supplying unit for supplying a reactive gas for synthesizing carbon nanotubes onto the substrates conveyed by the conveyer belt, a substrate heating unit for heating the substrates loaded on the conveyer belt, for thermal reaction of the reactive gas, and an exhausting unit for exhausting a reaction product gas.

Abstract: A flat-panel display device using an optical waveguide includes a light source for emitting light, a plurality of optical waveguides into which light emitted from the light source is incident, an optical waveguide arrangement substrate on which the plurality of optical waveguides are arranges and made of a material having a low refractive index so as to totally reflect the light transmitted through the plurality of optical waveguides, a light output controller positioned on the plurality of optical waveguides and made of a material whose refractive index changes according to an electric field, a light output portion positioned on the light output controller, for refracting the light having passed through the light output controller when the light propagated through the plurality of optical waveguides due to the electric field is transmitted through the light output controller and is output therefrom, and outputting the same to the outside, a first electrode positioned on the light output portion, made of a tr