Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Sri International

Korea Advanced Institute of Science and Technology

Hankuk University of Foreign Studies Research and Industry-university Cooperation Foundation

Tae-won Jeong

Shang-hyeun Park

Yong-Chul Kim

Min-jong Bae

Jeong-na Heo

Jeong-Hee Lee

Il-Hwan Kim

Do-Yoon Kim

Il-hwan Kim

Paul R Schwoebel

Chang-Soo Lee

Jin-Young Kim

Dong-min Im

Chang-soo Lee

Chan-Wook Baik

Deuk-seok Chung

Seok-gwang Doo

Young-Chul Ko

Duk-Young Jeon

Do-yoon Kim

Se-gi Yu

Bong-Je Park

Ji-yon Han

Mun-Ja Kim

Jin-young Kim

Ji-beom Yoo

Sun-jin Song

Kyoung-Won Min

An x-ray generator includes a housing, a cathode block that is arranged in the housing and emits electrons via a field emission scheme, an anode block that is arranged in the housing and generates x-rays in response to the electrons emitted from the cathode block and collide with the anode block, and a heat sink block that contacts the cathode block and dissipates heat generated therein to an outside of the housing.

X-ray generator including heat sink block

An X-ray generator may comprise: an electron emission device comprising a plurality of electron emission units configured to emit electrons; an X-ray emission device configured to emit X-rays due to the electrons emitted from the electron emission device; and/or a parallel light extraction member configured to extract X-rays having directivity from among the X-rays emitted from the X-ray emission device and to allow the extracted X-rays having directivity to pass through the parallel light extraction member.

Flat panel type X-ray generators and X-ray imaging systems including the same

Provided are methods of aging an x-ray generator having carbon nanotube electron emitters. The method of aging an x-ray generator that includes a cathode, a gate electrode, and an anode, includes applying a desired, or alternatively predetermined anode voltage to the anode, and applying a direct current pulse voltage to the gate electrodes to emit electrons from electron emitters. The method further includes maintaining an anode current formed by electrons generated from the electron emitters constant.

Method of aging X-ray generator having carbon nanotube electron emitter

An electron emission device includes a cathode electrode; a mesh-shaped gate electrode spaced apart from the cathode electrode; a plurality of gate spacers between the cathode electrode and the gate electrode; and a plurality of electron emission sources between the cathode electrode and the gate electrode, and alternating with the plurality of gate spacers.

Electron emission device and X-ray generator including the same

A mesh electrode adhesion structure includes: a substrate, and an opening defined in the substrate; a mesh electrode on the substrate, and a first combination groove defined in the mesh electrode; and an adhesion layer between the substrate and the mesh electrode. The mesh electrode includes: a mesh region corresponding to the opening defined in the substrate, and an adhesion region in which the first combination groove exposes the adhesion layer.

Mesh electrode adhesion structure, electron emission device and electronic apparatus including the electron emission device

A dielectric paste composition including: a plurality of inorganic dielectric particles, a binder, a solvent, and a halogenated hydrocarbon. Also disclosed is a method of forming a dielectric layer, a dielectric layer, and a device including the dielectric layer.

Dielectric paste composition, method of forming dielectric layer, dielectric layer, and device including the dielectric layer

A phosphor represented by Formula 1:ZnS:Cu,Cl,Mn,Te.&#x2003;&#x2003;Formula 1

Phosphor, white light emitting device including the phosphor and method of preparing the phosphor

A carbon nanotube, a method of preparing the same, a supported catalyst including the same, and a fuel cell using the supported catalyst are provided. The method of preparing the carbon nanotube includes: depositing a metal catalyst in single wall nanotubes and growing multi wall nanotubes over the single wall nanotubes using the metal catalyst. The carbon nanotubes of the present invention have satisfactory specific surface area and low surface resistance. Thus, the carbon nanotubes perform remarkably better than a conventional catalyst carrier. Accordingly, the carbon nanotubes, when used as a catalyst carrier of an electrode for a fuel cell, can improve the electrical conductivity of the fuel cell. In addition, a fuel cell employing the electrode has excellent efficiency and overall performance.

Carbon nanotubes, supported catalyst including the same, and fuel cell using the supported catalyst

An inorganic electroluminescence device includes a first electrode, a dielectric layer disposed on the first electrode, an inorganic light emitting layer disposed on the dielectric layer, and a second electrode disposed on the inorganic light emitting layer. The inorganic light emitting layer includes a fluorescent particle. The fluorescent particle includes a ZnS mother body and a nano-wire disposed on a surface of the ZnS mother body.

Fluorescent particle and inorganic electroluminescence device including the same

An inorganic electroluminescence device including a first electrode and a second electrode disposed apart from each other, and a dielectric material layer disposed between the first and second electrodes. The dielectric material layer has a micro-tubular shape, and a light emitting layer is filled in the dielectric material layer.

Inorganic electroluminescence device, display apparatus having the same and method thereof

An inorganic electroluminescence ('EL') device includes a lower electrode; a dielectric layer disposed on the lower electrode; an inorganic emission layer disposed on the dielectric layer; an upper electrode disposed on the inorganic emission layer; a waveguide layer disposed on the upper electrode; and a reflection film partially coating the waveguide layer and including an emission portion through which light is emitted.

Inorganic electroluminescent device and method of manufacturing the same

An inorganic field emission device includes a first electrode, a second electrode spaced apart from the first electrode, and a light emitting layer disposed therebetween. A dielectric layer is disposed between the first electrode and the light emitting layer and/or between the second electrode and the light emitting layer. A field reinforcing layer is disposed between a dielectric layer and the light emitting layer and includes carbon nanotubes having a length of about 20 nanometers to about 1 micrometer.

Inorganic electroluminescence device

Carbon nanotubes and metal particle-containing carbon nanotubes are provided. The carbon nanotubes have increased surface area. A method of cutting carbon nanotubes is also provided. According to the method, the dispersion properties of the carbon nanotubes are improved by simplifying the structural changes and/or surface modifications of the carbon nanotubes, thereby enabling insertion of an active substance into the inner walls of the carbon nanotubes and increasing the insertion efficiency.

Method of cutting carbon nanotubes

A method for driving a field emission device (FED) applies an alternating (AC) voltage as a driving voltage for emitting electrons in a field emission device comprising cathode electrode including an emitter and an anode electrode facing the cathode electrode. A method for aging an FED uses a constant voltage so that electrons cannot be emitted from the electron emission source, and an AC voltage so that electrons can be periodically emitted from the emitter when the FED is aged.

Growing community of inventors

Yongin-si, South Korea

Tae-won Jeong