Unlock instant, AI-driven research and patent intelligence for your innovation.

Manufacturing method of electronic transmitting element, electronic source and image forming device using carbon fibre, ink made of carbon fibre

A technology of electron emission and manufacturing method, which is applied in the manufacture of discharge tubes/lamps, electrical components, electrode systems, etc., and can solve problems such as not being able to fully utilize carbon fibers

Inactive Publication Date: 2004-05-19
CANON KK
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the characteristics of carbon fibers with high electron emission capabilities cannot be fully utilized in many cases.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method of electronic transmitting element, electronic source and image forming device using carbon fibre, ink made of carbon fibre
  • Manufacturing method of electronic transmitting element, electronic source and image forming device using carbon fibre, ink made of carbon fibre
  • Manufacturing method of electronic transmitting element, electronic source and image forming device using carbon fibre, ink made of carbon fibre

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127] Alloy particles having a composition of Pd (60 atm%) and Co (40 atm%) and an average particle diameter of 5 nm were prepared, and a dispersion liquid in which the alloy particles were dispersed at 0.1 g / L was prepared. In the above-mentioned dispersion liquid, ethanol was used as a dispersion medium, and 5 wt% of PVP (polyvinylpyrrolidone) was added as an anti-aggregation agent in order to disperse the above-mentioned alloy particles as a monomer.

[0128] Hereinafter, using the above-mentioned dispersion liquid, it will be described in detail Figures 2A to 2E-2 The manufacturing process of the electron-emitting element of this embodiment is shown in .

[0129] (Process 1)

[0130] A quartz substrate is used as the substrate 201. After sufficient cleaning, in order to form the lead-out electrode 202 and the cathode (emitter) electrode 203, first, the entire surface of the substrate 201 is sequentially and continuously vapor-deposited by the sputtering method (not show...

Embodiment 2

[0145] A dispersion liquid in which alloy particles having a composition of Pd (60 atm%) and Co (40 atm%) and an average particle diameter of 8 nm were dispersed at 0.1 g / L was used. Using pure water as a dispersion medium without using the anti-aggregation agent used in Example 1, a dispersion liquid in which alloy fine particles consist of several to several tens of aggregates was prepared.

[0146] In this example, an electron emission element was fabricated in the same manner as in Example 1 except that Step 2 in Example 1 was performed as follows.

[0147] (Process 2)

[0148] The peeling metal Cr204 for the upper layer after peeling is patterned ( Figure 2B ).

[0149] Next, a TiN layer was formed as a conductive material layer 205 in which carbon fibers 207 were grown via alloy particles 206 .

[0150] The above-mentioned dispersion of alloy fine particles 206 was spin-coated thereon using a spinner at 3000 rpm. After coating, an oxidation step was performed at 350...

Embodiment 3

[0155] A dispersion liquid in which alloy particles having a composition of Pd (70 atm%) and Co (30 atm%) and an average particle diameter of 10 nm were dispersed at 0.1 g / L was prepared. Use isopropanol as the dispersion medium. In addition, in this example, 10 wt% of PVA (polyvinyl alcohol) was added to the dispersion as an anti-aggregation agent in order to disperse the alloy particles as a monomer.

[0156] In this example, an electron emission element was fabricated in the same manner as in Example 1 except that Step 2 in Example 1 was performed as follows.

[0157] (Process 2)

[0158] The peeling metal Cr204 for the upper layer after peeling is patterned ( Figure 2B ).

[0159] Next, a TiN layer was formed as the conductive material layer 205 .

[0160] The above-mentioned dispersion liquid of alloy particles 206 was applied thereon from above the substrate 201 using a spinner. After coating, the removal of the dispersion medium and the anti-aggregation agent and ...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The present invention provides a method of producing an electron emitting device using a carbon fiber using a catalyst, capable of preferably growing carbon fibers at a low temperature without the need of a high temperature process for growing the carbon fibers or a high temperature alloy process on a substrate, and growing the carbon fibers by a density capable of applying an electric field necessary for the electron emission further effectively. Using alloy particles containing Pd and at least one element selected from the group consisting of Fe, Co, Ni, Y, Rh, Pt, La, Ce, Pr, Nd, Gd, Tb, Dy, Ho, Er, and Lu as the catalyst, a dispersion of the alloy particles is applied on a carbon fiber producing subject surface for providing the alloy particles so as to grow the carbon fibers.

Description

technical field [0001] The present invention relates to an electron emission element using carbon fibers, an electron source, a method of manufacturing an image forming apparatus, and an ink for manufacturing carbon fibers. Background technique [0002] In recent years, nano-sized carbon fibers such as carbon nanotubes have attracted more and more attention. As a method for producing carbon fibers, various methods are known (for example, Patent Documents 1 to 3). [0003] Furthermore, many experiments have been conducted in which nano-sized carbon fibers such as carbon nanotubes are used in field emission type electron emission devices (for example, refer to Patent Documents 4 to 6). [0004] 【Patent Document 1】 [0005] Japanese Patent Laid-Open Publication No. 5-287616 [0006] 【Patent Document 2】 [0007] Japanese Patent Application Publication No. 3-260119 [0008] 【Patent Document 3】 [0009] Specification of US Patent No. 4900483 [0010] 【Patent Document 4】 ...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B82Y99/00C09D11/00C09D11/02C23C8/02C23C16/02C23C16/26H01J9/02
CPCC23C16/0281Y10S977/844C09D11/30Y10S977/842C23C8/02C09D11/03C23C16/26H01J9/025
Inventor 河手信一塚本健夫
Owner CANON KK