Method for improving field emission performance of material

A field emission and performance technology, which is used in the manufacture of discharge tubes/lamps, laser welding equipment, electrical components, etc. The effect of electron emission performance, low cost and simple operation
CN103264223AInactive Publication Date: 2013-08-28DONGHUA UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2013-08-28
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a method for improving field emission performance of a material. The method is characterized by including the following steps: making a lattice image in corresponding computer software in a laser marking machine, setting power density of the laser marking machine and utilizing the laser marking machine to conduct laser processing on the surface of a field emission cathode material. A laser scanning type processing method is utilized to process the surface of the cathode material, regular nanometer-sized small holes identical in size are formed in the surface of the cathode material, and defect points and ablation organics are increased to increase field emission current and improve stability. Field emission starting voltage is reduced, field emission evenness is improved, meanwhile a regular micronano structure is formed on the surface of the processed material, distances between pixel points are reduced to about 1 micrometer, the size is shrunk by nearly 100 times compared with the existing size, and the number of the pixel points of a display in the same size can be increased by nearly 100 times to achieve ultrahigh resolution display.
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Description

technical field

[0001] The invention relates to a method for improving the performance of field electron emission, which can effectively improve the field emission performance of materials, realize the processing of regular micro-nano structures on the surface of materials, and further realize ultra-high resolution display. Background technique

[0002] Cold cathode field electron emission is to reduce the barrier height and narrow the width by applying an external voltage, resulting in the emission of electrons without energy loss. If the field emission is applied to the display, the cold electron emission technology is of great benefit to the improvement of the life of the display. Laser micro-nano processing is an effective and high-precision processing technology, which can provide technology and means for the research and preparation of functionalized optical microstructures, which makes laser processing in optical waveguides, photonic crystals, diffraction gratings, th...

Claims

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