Carbon nanotube wire cathode production method
A technology of carbon nanotubes and a manufacturing method, which is applied in the field of manufacturing carbon nanotube filament cathode bodies, can solve the difference in the field emission performance of carbon nanotube filaments, the poor control of the length of carbon nanotube filaments, the difficulty of emission performance cathode emitters, and the like question
Active Publication Date: 2008-01-09
TSINGHUA UNIV +1
View PDF2 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the end morphology of carbon nanotube filaments has great randomness, and the end morphology has a great influence on field emission. Therefore, the field emission performance of different carbon nanotube filaments may vary greatly.
In addition, the length of carbon nanotube filaments is not easy to control
Therefore, it is more difficult to prepare cathode emitters with consistent field emission properties in batches.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0014] A method for manufacturing a carbon nanotube filament cathode body comprises the following steps:
[0015] providing a carbon nanotube filament;
[0016] Obtaining several segments of carbon nanotube filaments from the carbon nanotube filaments;
[0017] Glue a length of carbon nanotube wire to one end of the wire;
[0018] The section of carbon nanotube filaments is burned in a flame to obtain a carbon nanotube filament cathode body.
[0019] The manufacturing method of the carbon nanotube filament cathode body according to the embodiment of the present invention will be described below with reference to the accompanying drawings.
[0020] Step 1: providing a carbon nanotube filament.
[0021] The carbon nanotube filaments can be obtained by the following methods: providing a substrate; depositing a catalyst on the surface of th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
Login to View More
Abstract
The invention is concerned with the manufacture method for the carbon nanometer tube thread cathode, includes the following steps: provides a carbon nanometer tube thread; gets several sections carbon nanometer tube thread from the carbon nanometer tube thread; adhibits one section of carbon nanometer tube thread on one end of metal thread; puts the section of carbon nanometer tube thread into fire to get a carbon nanometer tube thread cathode. The length and end appear of the carbon nanometer tube thread cathode is with better consistency, the field-emissive capability is with better consistency in order to make carbon nanometer tube thread cathode with better consistency.
Description
technical field [0001] The invention relates to a method for manufacturing a carbon nanotube filament cathode body. Background technique [0002] Carbon nanotube filaments are obtained from carbon nanotube arrays. U.S. Patent Nos. 7,045,108 and 6,957,993 describe methods for manufacturing carbon nanotube filaments. The emergence of carbon nanotube filaments will promote the development of macroscopic carbon nanotube devices. [0003] The end faces of carbon nanotube filaments have good field emission properties and can be used as a source of field emission electrons. However, the end morphology of carbon nanotube filaments has great randomness, and the end morphology has a great influence on field emission. Therefore, the field emission performance of different carbon nanotube filaments may be very different. In addition, the length of carbon nanotube filaments is not easy to control. Therefore, it is relatively difficult to prepare cathode emitters with consistent field ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01J9/02
CPCH01J2201/30469H01J9/025
Inventor 杨远超刘亮姜开利范守善
Owner TSINGHUA UNIV