Abstract:
A cold cathode field emission electron source capable of emission at levels comparable to thermal sources is described. Emission in excess of 6 A/cm2 at 7.5 V/μm is demonstrated in a macroscopic emitter array. The emitter is comprised of a monolithic and rigid porous semiconductor nanostructure with uniformly distributed emission sites, and is fabricated through a room temperature process which allows for control of emission properties. These electron sources can be used in a wide range of applications, including microwave electronics and x-ray imaging for medicine and security.
Abstract translation:描述了能够以与热源相当的水平发射的冷阴极场致发射电子源。 在宏观发射极阵列中证明了在7.5V / m时超过6A / cm 2的发射。 发射极由具有均匀分布的发射部位的单片和刚性多孔半导体纳米结构组成,并通过允许控制发射特性的室温工艺制造。 这些电子源可用于广泛的应用,包括微波电子学和医学和安全性的x射线成像。
Abstract:
A water-based composition is used to form an electron and includes a carbonaceous compound, a silicate compound, and water. The electron emitter includes a carbonaceous compound and a silicate compound and is prepared using the water-based composition, and an electron emission device includes the electron emitter. The water-based composition that is used to form an electron emitter is suitable for forming a distinctive pattern, and the electron emitter prepared using the water-based composition has very small residual carbon content.
Abstract:
A method is provided for fabricating an electron emission source which can attain improved electron emission efficiency and has simplified manufacturing processes. Also provided are an electron emission display device and an electron emission display device fabricated using the method of fabricating an electron emission source. The method includes forming an electrode, forming a carbide compound thin film on the electrode and forming a carbide-induced carbon thin film layer from the carbide compound thin film using an etching gas. The electron emission device and the electron emission display device each include a first electrode, a second electrode disposed to face the first electrode, and a carbide-induced carbon thin film layer formed to be electrically connected to f the first electrode or the second electrode.
Abstract:
PROBLEM TO BE SOLVED: To provide an aqueous composition for electron emission source formation, and an electron emission source using the same. SOLUTION: The aqueous composition for electron emission source formation contains a carbon system compound, a silicic compound and water. By this, a desired pattern is formed vividly by the aqueous composition for electron emission source formation. Since the electron emission source manufactured of the composition hardly has residual carbon, emission performance and a life are improved. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
An electron source is made from mixed-metal carbide materials of high refractory nature. Producing field-enhanced thermionic emission, i.e., thermal-field or extended Schottky emission, from these materials entails the use of a certain low work function crystallographic direction, such as, for example, (100), (210), and (310). These materials do not naturally facet because of their refractory nature. The disclosed electron source made from transition metal carbide material is especially useful when installed in a scanning electron microscope (SEM) performing advanced imaging applications that require a high brightness, high beam current source.
Abstract:
A cold cathode field emission electron source capable of emission at levels comparable to thermal sources is described. Emission in excess of 6 A/cm2 at 7.5 V/μm is demonstrated in a macroscopic emitter array. The emitter has a monolithic and rigid porous semiconductor nanostructure with uniformly distributed emission sites, and is fabricated through a room temperature process which allows for control of emission properties. These electron sources can be used in a wide range of applications, including microwave electronics and x-ray imaging for medicine and security.
Abstract translation:描述了能够以与热源相当的水平发射的冷阴极场致发射电子源。 在宏观发射极阵列中证明了在7.5V /μm下超过6A / cm 2的发射。 发射器具有均匀分布的发射位点的单片和刚性多孔半导体纳米结构,并且通过允许控制发射特性的室温工艺制造。 这些电子源可用于广泛的应用,包括微波电子学和医学和安全性的x射线成像。
Abstract:
The present invention relates to afield emission cathode, comprising an at least partly electrically conductive base structure, and a plurality of electrically conductive micrometer sized sections spatially distributed at the base structure, wherein at least a portion of the plurality of micrometer sized sections each are provided with a plurality of electrically conductive nanostructures. Advantages of the invention include lower power consumption as well as an increase in light output of e.g. a field emission lighting arrangement comprising the field emission cathode.
Abstract:
A method for manufacturing a field electron emission source includes: providing an insulating substrate; patterning a cathode layer on at least one portion of the insulating substrate; forming a number of emitters on the cathode layer; coating a photoresist layer on the insulating substrate, the cathode layer and the emitters; exposing predetermined portions of the photoresist layer to radiation, wherein the exposed portions are corresponding to the emitters; forming a mesh structure on the photoresist layer; and removing the exposed portions of photoresist layer. The method can be easily performed and the achieved the field electron emission source has a high electron emission efficiency.