Iljin Nanotech Co., Ltd.

Other

Iljin Corporation

Jae-Eun Yoo

Cheol-jin Lee

Jin Hee Jang

Kun-Hong Lee

Sung-Hoon Lim

Suk-jae Chung

Chin-Kyu Huh

Kay-hyeok An

Chang-Mo Ryu

Young-hee Lee

Si-ken Lee

Eun-Hwa Hong

Sang-yong Han

Jong-Hoon Han

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.

Method of synthesizing carbon nanotubes and apparatus used for the same

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.

Field emitter having carbon nanotube film, method of fabricating the same, and field emission display device using the field emitter

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.

White light source using carbon nanotubes and fabrication method thereof

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.

Supercapacitor using electrode of new material and method of manufacturing the same

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.

Mass synthesis method of high purity carbon nanotubes vertically aligned over large-size substrate using thermal chemical vapor deposition

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 transparent conductive material, and to which a predetermined control voltage is applied, a second electrode positioned under the light output controller, made of a conductive material, and which forms an electric field in conjunction with the first electrode, and a driver for applying the predetermined control voltage to the first and second electrodes. Therefore, the resolution of a reproduced image can be greatly enhanced, the light efficiency is very high and the viewing angle is increased.

Growing community of inventors

Seoul, South Korea

Jae-Eun Yoo