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Dense material thin-layer sizing agent of carbon nanotube field emission device and method for manufacturing structure

A carbon nanotube layer, field emission technology, applied in the manufacture of discharge tubes/lamps, discharge tubes, electrical components, etc., can solve the problems of short circuit of devices, difficult control conditions, contact between gate electrodes and cathode electrodes, etc.

Inactive Publication Date: 2012-01-04
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For carbon nanotube field emission devices with a three-electrode structure, the distance between the gate electrode and the cathode electrode should be as small as possible on the basis of ensuring insulation, which causes difficulties in depositing carbon nanotube layers later.
Because it is not easy to control the conditions when depositing the carbon nanotube layer, it is easy to make the carbon nanotubes adhere to the insulating hole wall formed by the intersection of the grid electrode and the cathode electrode, and if the length of the insulating hole wall is extremely small, it will cause The gate electrode and the cathode electrode are in contact, causing the device to short circuit

Method used

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  • Dense material thin-layer sizing agent of carbon nanotube field emission device and method for manufacturing structure
  • Dense material thin-layer sizing agent of carbon nanotube field emission device and method for manufacturing structure
  • Dense material thin-layer sizing agent of carbon nanotube field emission device and method for manufacturing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] figure 2 It is a schematic diagram of Embodiment 1 of the carbon nanotube field emission display structure of the present invention.

[0047] After the cathode glass substrate 31 shown in the figure is ultrasonically cleaned with acetone, the following steps are carried out:

[0048] 1) prepare dense material thin layer 36 slurry according to the following raw materials by weight percentage: get 25% of acrylic resin made by copolymerization, 2% of photosensitive monomer acrylate, cleavage type photoinitiator 907.8%, the total amount of inorganic raw materials is 55% (among them, inorganic raw material lead oxide PbO16.5%, silicon dioxide SiO 2 22%, silver nanoparticles 16.5%), dissolved in Texanol ester alcohol (2,2,4-trimethyl-1.3 pentanediol monoisobutyrate) for mechanical mixing; the amount of solvent is 10%, that is, dense Material thin layer 36 slurry, spare. Its viscosity is controlled between 10,000 and 30,000 cps to meet the needs of screen printing.

[004...

Embodiment 2

[0074] For another carbon nanotube field emission device structure manufacturing method of the present invention, the manufacturing steps of the method are as follows:

[0075] After the cathode glass substrate 31 is ultrasonically cleaned with acetone, the manufacturing process is carried out in the following steps:

[0076] 1) Prepare dense material thin layer 36 slurry according to the following raw materials in weight percentage: take 25% of the acrylic resin prepared by the above-mentioned copolymerization, 5% of photosensitive monomer methacrylate, cracking type photoinitiator 184 15%, inorganic raw materials The total amount is 40% (among them, inorganic raw material lead oxide PbO12%, silicon dioxide SiO 2 16%, silver nanoparticles 12%), dissolved in Texanol ester alcohol (2,2,4-trimethyl-1.3 pentanediol monoisobutyrate) for mechanical mixing; the amount of solvent is 15%, that is, dense Material thin layer 36 slurry, spare. Its viscosity is controlled between 10,000...

Embodiment 3

[0095] The steps of the manufacturing method of a carbon nanotube field emission device structure in this embodiment are the same as those in Embodiment 2, except for step 1). The aforesaid dense material thin layer 36 slurry is not only composed of the ingredients listed in Examples 1 and 2, but its photoinitiator can also be a cracking initiator 1173, 369, 1490, 1700.

[0096] The preparation method of this step 1) is as follows:

[0097] 1) Prepare dense material thin layer 36 slurry according to the following raw materials in weight percentage: take 18% of the acrylic resin prepared by the above-mentioned copolymerization, 1% of photosensitive monomer methacrylate, 1173% of cracking photoinitiator, 5% of inorganic raw materials The total amount is 70% (among them, inorganic raw material lead oxide PbO21%, silicon dioxide SiO 2 28%, silver nanoparticles 21%), dissolved in Texanol ester alcohol (2,2,4-trimethyl-1.3 pentanediol monoisobutyrate) for mechanical mixing; the amo...

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Abstract

The invention relates to a dense material thin-layer sizing agent of a carbon nanotube field emission device and a method for manufacturing a structure of the carbon nanotube field emission device. The dense material thin-layer sizing agent is characterized by comprising the following compositions in percentage by weight: 6 to 15 percent of solvent, 18 to 25 percent of resin, 1 to 5 percent of a photosensitive monomer, 5 to 15 percent of a light evocating agent and 40 to 70 percent of an inorganic raw material. The method for manufacturing the structure of the carbon nanotube field emission device comprises the following steps: covering a grid electrode layer on a glass underlayer; setting an insulated medium layer, covering a cathode electrode layer on the insulated medium layer, and etching medium to obtain a hole structure by adopting the cathode electrode layer as a mask; sintering the cathode electrode layer at the high temperature, and printing an epoxy resin coating layer; setting a dense material thin layer, printing a carbon nanotube layer and melting the carbon nanotube layer into the dense material thin layer; and performing one-off exposure and development, and pyrolyzing the epoxy resin coating layer to conglutinate the carbon nanotube layer with the cathode electrode layer of the lower part together via the dense material thin layer. The dense material thin-layersizing agent can effectively isolate a grid electrode and a cathode electrode to avoid short circuit in the process of depositing a carbon nanotube.

Description

technical field [0001] The invention belongs to the technical field of field emission display manufacture, and in particular relates to a thin-layer paste of a dense material of a carbon nanotube field emission device and a method for manufacturing a carbon nanotube field emission device structure. Background technique [0002] Typically, in a field emission device (FED), when a positive voltage of several hundred volts is applied to the external gate electrode with respect to the tip of a conical silicon emitter, electrons are ejected from the end of the emitter tip under the influence of a strong electric field, and The emitted electrons collide with the anode, to which an extra high voltage of several thousand volts is applied, on which the phosphor material is coated. In this way, the FED device can function as a display device. However, in conventional FED devices using carbon emitter tips, which are fabricated by etching, there is difficulty in separating the anode fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J29/02H01J9/00H01J9/02
Inventor 赵莉
Owner IRICO