Abstract:
A method for preparing an iridium tip with atomic sharpness. The method includes tapering an iridium wire to a needle shape and heating the iridium needle in an oxygen atmosphere. Also disclosed is an iridium needle having a pyramidal structure which terminates with a small number of atoms prepared by the methods.
Abstract:
A field emission electron source (10) includes a conductive base (12), a carbon nanotube (14), and a film of metal (16). The conductive base includes a top (122). One end (142) of the carbon nanotube is electrically connected with the top of the conductive base. The other end (144) of the carbon nanotube extends outwardly away from the top of the conductive base. The film of metal is formed on the nearly entire surface of the carbon nanotube and at least on the portion of the top of the conductive base proximate the carbon nanotube. A method for manufacturing the described field emission electron source is also provided.
Abstract:
The present invention relates to an electron-emitting device and a manufacturing method thereof. According to an embodiment of the present invention, the electron-emitting device includes: a substrate including a metal tip; carbon nanotubes arranged on the metal tip; and a lithium layer arranged on the carbon nanotubes. The manufacturing method for the electron-emitting device includes the steps of: providing the substrate including the metal tip; electrochemically etching the substrate; and arranging the carbon nanotubes on the substrate using electrophoretic deposition (EPD); and plating the carbon nanotubes with lithium.
Abstract:
금속 붕화물 물질을 함유한 에미터는 반경이 1㎛ 이하인 적어도 부분적으로 둥글게 된 팁을 갖는다. 전계가 에미터에 인가되고 전자빔이 에미터로부터 생성된다. 에미터를 형성하기 위해, 반경이 1㎛ 이하인 둥근 팁을 가진 금속 붕화물 물질을 함유한 에미터를 형성하도록 물질이 단결정 봉으로부터 제거된다.
Abstract:
PROBLEM TO BE SOLVED: To provide an electron emitting element and its manufacturing method and, specifically, an electron emitting element using a carbon nanotube and its manufacturing method. SOLUTION: The electron emitting element contains a conductive base material having a tip end, a carbon nanotube having a first end part and a second end part and a metal membrane. The first end part of the carbon nanotube is connected with the tip end of the conductive base material and the second end part of the carbon nanotube is extended from the tip end of the conductive base material. The metal membrane is formed on a surface of the carbon nanotube and on a part of the tip end of the conductive base material neighboring to the carbon nanotube. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
A method for preparing an iridium tip with atomic sharpness. The method includes tapering an iridium wire to a needle shape and heating the iridium needle in an oxygen atmosphere. Also disclosed is an iridium needle having a pyramidal structure which terminates with a small number of atoms prepared by the methods.