公开(公告)号：US20040256975A1

公开(公告)日：2004-12-23

申请号：US10464440

申请日：2003-06-19

Applicant: APPLIED NANOTECHNOLOGIES, INC.

Inventor： Bo Gao ,  Otto Z. Zhou

IPC: H01J009/00 ,  H01J009/24 ,  H01J001/14 ,  H01J017/49

CPC classification number: B82Y10/00 ,  H01J1/3048 ,  H01J9/025 ,  H01J17/066

Abstract: This invention discloses electron field-emission cathodes with enhanced performance for vacuum and gaseous electronics and methods of fabricating these cathodes. The cathodes of the present invention comprise nanomaterials, such as carbon nanotubes, and metals or metal-containing compounds or alloys. In gas discharge devices, the present field-emission materials or cathodes work at room temperature and have much lower breakdown voltage or cathode fall (e.g.nullthe voltage drop between the plasma discharge region and the cathode) than conventional cathodes. The invention enables the developing of gas discharge devices with greatly enhanced energy efficiency and operating lifetime.

Abstract translation: 本发明公开了具有增强真空和气体电子的性能的电子场发射阴极以及制造这些阴极的方法。 本发明的阴极包括纳米材料，例如碳纳米管，以及金属或含金属的化合物或合金。 在气体放电装置中，本场致发射材料或阴极在室温下工作，并且具有比常规阴极低得多的击穿电压或阴极下降（例如，等离子体放电区域和阴极之间的电压降）。 本发明能够显着提高气体放电装置的能量效率和使用寿命。

公开(公告)号：US20040108298A1

公开(公告)日：2004-06-10

申请号：US10610591

申请日：2003-07-02

Applicant: Applied Nanotechnologies, Inc.

Inventor： Bo Gao

IPC: H01B013/00

CPC classification number: C25D15/02 ,  B82Y10/00 ,  C25D5/48 ,  H01J9/025 ,  H01J2201/30469

Abstract: A method of forming an electron emitter includes the steps of: (i) forming a nanostructure-containing material; (ii) forming a mixture of nanostructure-containing material and a matrix material; (iii) depositing a layer of the mixture onto at least a portion of at least one surface of a substrate by electrophoretic deposition; (iv) sintering or melting the layer thereby forming a composite; and (v) electrochemically etching the composite to remove matrix material from a surface thereof, thereby exposing nanostructure-containing material.

Abstract translation: 形成电子发射体的方法包括以下步骤：（i）形成含纳米结构的材料; （ii）形成含有纳米结构的材料和基质材料的混合物; （iii）通过电泳沉积将所述混合物层沉积在基材的至少一个表面的至少一部分上; （iv）烧结或熔化该层从而形成复合材料; 和（v）电化学蚀刻复合材料以从其表面除去基质材料，从而暴露含纳米结构的材料。

公开(公告)号：US20040240616A1

公开(公告)日：2004-12-02

申请号：US10448144

申请日：2003-05-30

Applicant: APPLIED NANOTECHNOLOGIES, INC.

Inventor： Qi Qiu ,  Jianping Lu ,  Otto Z. Zhou

IPC: H01J035/06

CPC classification number: H01J35/065 ,  H01J2235/068

Abstract: A multi-beam x-ray generating device includes a stationary field-emission cathode having a plurality of stationary and individually controllable electron-emitting pixels disposed in a predetermined pattern on the cathode, an anode opposing the cathode comprising a plurality of focal spots disposed in a predetermined pattern that corresponds to the predetermined pattern of the pixels, and a vacuum chamber enveloping the anode and cathode. An additional construction is in the form of an a x-ray generating device including a stationary field-emission cathode, the cathode having a planar surface with an electron-emissive material disposed on at least a portion thereof, a gate electrode disposed in parallel spaced relationship relative to the planar surface of the cathode, the gate electrode having a plurality of openings having different sizes, an anode opposing the cathode and spaced therefrom, the anode having a plurality of focal spots aligned with the electron-emissive material, and a vacuum chamber enveloping the anode and cathode, wherein the gate electrode is operable such that the openings can be manipulated to bring at least one beam of electrons emitted from the cathode into and out of registry with at least one of the focal spots. Associated methods are also described.

Abstract translation: 多光束X射线产生装置包括具有以阴极上预定图案设置的多个静止和可单独控制的电子发射像素的固定场致发射阴极，与阴极相对的阳极，包括多个焦斑， 对应于像素的预定图案的预定图案，以及包围阳极和阴极的真空室。 附加结构是包括固定场致发射阴极的x射线产生装置的形式，阴极具有设置在其至少一部分上的电子发射材料的平坦表面，平行间隔设置的栅电极 所述栅电极具有多个具有不同尺寸的开口，与所述阴极相对并与之隔开的阳极，所述阳极具有与所述电子发射材料对准的多个焦点，以及真空 室包围阳极和阴极，其中栅极电极可操作，使得可以操纵开口以使至少一个从阴极发射的电子束进入和离开与至少一个焦点的对准。 还描述了相关方法。

公开(公告)号：US20040114721A1

公开(公告)日：2004-06-17

申请号：US10614787

申请日：2003-07-09

Applicant: Applied Nanotechnologies, Inc.

Inventor： Qi Qiu ,  Jianping Lu ,  Otto Z. Zhou

IPC: H01J035/00 ,  H01J035/22 ,  H01J035/32

CPC classification number: B82Y10/00 ,  H01J35/065 ,  H01J2201/30469 ,  H01J2235/062 ,  H01J2235/068 ,  Y10S977/95

Abstract: An x-ray generating device includes at least one field-emission cathode having a substrate and incorporating nanostructure-containing material including carbon nanotubes. The device further includes at least one anode target. Associated methods are also described.

Abstract translation: x射线产生装置包括至少一个场致发射阴极，其具有衬底并且包括纳米结构材料，包括碳纳米管。 该装置还包括至少一个阳极靶。 还描述了相关方法。