Preparation method of full-flexible printable patterned electrode

A patterned electrode and graphic printing technology, which is applied in the direction of cable/conductor manufacturing, equipment for manufacturing conductive/semiconductive layers, circuits, etc., can solve the problems of incomplete transfer and poor conductive uniformity of conductive films, etc., to improve the conductivity Effects of uniformity, resolution enhancement, and dispersion improvement

Active Publication Date: 2021-12-10
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two common preparation methods: one is to use PDMS to transfer the patterned silver nanowires, but this process will have the problem of incomplete transfer; on this basis, Naoji Matsuhisa and others proposed the second method, which is to conduct electricity The electrode is directly prepared after the material is mixed with the polymer, but during the mixing process of PDMS and the conductive material, because the water-based conductive material cannot be mixed evenly with it, the conductive uniformity of the conductive film is very poor

Method used

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  • Preparation method of full-flexible printable patterned electrode
  • Preparation method of full-flexible printable patterned electrode
  • Preparation method of full-flexible printable patterned electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: The thickener adopts 0.1% by mass of sodium alginate, the surfactant adopts 0.01% by mass of fluorocarbon surfactant FS-3100, and the leveling agent adopts 0.001% by mass of polyether Modified organopolysiloxane MY-300, the dispersant uses ethanolamine ETA with a mass percentage of 0.01%, the ultraviolet finishing agent uses 0.01% by mass of benzoin bismethyl ether pyridine, and the defoamer adopts 0.01% by mass of ethanol fully flexible printable patterned electrodes.

[0030] Step 1: Make polydimethylsiloxane PDMS substrate.

[0031] 1.1) Mix 10g of polydimethylsiloxane PDMS precursor with 1g of curing agent and stir thoroughly, then place it in a centrifuge and rotate at 7000r / min for 3min to remove the bubbles that appear during the stirring process;

[0032] 1.2) Pour the mixed PDMS into a square container to form a 0.5mm thick PDMS film, let it stand for 0.2h in the air environment to make it level naturally, then put it into an oven to heat it, at ...

Embodiment 2

[0041] Example 2: The thickener uses 1% by mass of carboxymethylcellulose sodium CMC, the surfactant uses 0.5% by mass of TF380, and the leveling agent uses 0.1% by mass of Shanggao sago-3223 , the dispersant adopts sago9760 with a mass percentage of 0.5%, the ultraviolet finishing agent adopts 0.1% diphenyl ethyl ketone and 0.1% 1-hydroxycyclohexyl phenyl ketone, and the defoamer adopts a mass percentage of Fully flexible printable patterned electrodes with 0.1% mineral oil defoamer MO-2170.

[0042] Step 1: Make a polydimethylsiloxane PDMS substrate.

[0043] First, mix 10g of polydimethylsiloxane PDMS precursor with 1g of curing agent and stir thoroughly, and then put it into a centrifuge for centrifugation to remove the bubbles that appear during the stirring process. The speed of the centrifuge is 6000r / min , the rotation time is 4.5min;

[0044] Secondly, pour the mixed PDMS into the container to form a 0.5mm thick PDMS film, let it stand for 0.2h in the air environment ...

Embodiment 3

[0053] Embodiment 3: The hydroxypropyl methylcellulose HPMC of 2.4% by mass is used to make the thickener, the TF380 of 0.1% by mass is used as the surfactant, and the high sago- 3223, the dispersant uses 0.1% by mass percentage of Shanggao sago9760, the ultraviolet finishing agent uses 0.01% by mass percentage of 2-(2′-hydroxy-5′-methylphenyl)benzotriazole, 0.01% of 4- Benzoyloxy-2,6,2,6-tetramethylpiperidine and defoaming agent are fully flexible printable patterned electrodes using 1% by mass ethanol.

[0054] Step A: Fabricate a polydimethylsiloxane PDMS substrate.

[0055] A1) After mixing 10g of polydimethylsiloxane PDMS precursor with 1g of curing agent and fully stirring, spin in a centrifuge at a speed of 7000r / min for 4min to remove the bubbles that appear during the stirring process;

[0056] A2) Pour the mixed PDMS into a square container to form a 0.5mm thick PDMS film, let it stand for 0.2h in the air environment to make it level naturally, and then put it into ...

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Abstract

The invention discloses a preparation method of a full-flexible printable patterned electrode, and mainly solves the problems of poor conductivity and low resolution of a flexible electrode in the prior art. According to the scheme, the method comprises the following steps: heating and curing a PDMS precursor and a curing agent, and cutting into a PDMS substrate; adding an organic solvent into silver nanowire, sequentially adding a thickening agent, a surfactant, a leveling agent, a dispersing agent, an ultraviolet finishing agent and a defoaming agent, and heating; after the solvent is evaporated until the silver nanowire solution is viscous, respectively adding a PDMS precursor and a curing agent to form organic-based high-elastic conductive ink; taking the conductive ink, placing on a screen printing plate, and carrying out patterned electrode printing and curing; and carrying out welding treatment on the patterned electrode under ultraviolet irradiation to obtain the full-flexible transparent conductive electrode. According to the invention, the conductive uniformity and the resolution ratio of the electrode are improved, the structural and performance stability under the flexible deformation condition is improved, and the method can be used for manufacturing displays and semiconductor devices.

Description

technical field [0001] The invention belongs to the technical field of electronic devices, and in particular relates to an electrode preparation method, which can be used in the manufacture of displays and semiconductor devices. Background technique [0002] In recent years, the new display industry has developed rapidly, and the form of display devices is undergoing development from flat panel display to fixed curved surface display and flexible display. With the launch of foldable mobile phones such as Samsung Galaxy Z Flip and Huawei Mate Xs, the development of flexible display The concept began to enter the minds of the public, and triggered a new round of flexible display development and investment boom. As an important part of the display, electrodes are bound to develop in the direction of full flexibility. [0003] The traditional indium tin oxide conductive glass ITO has excellent electrical conductivity and transmittance in the visible light band, and is a good ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/044C09D11/52C09D11/102C09D11/03C09D11/033C09D11/0235B21F15/08H01B13/00C08L83/04
CPCC08J7/044C08J7/0427C09D11/52C09D11/102C09D11/03C09D11/033C09D11/0235B21F15/08H01B13/0026C08J2383/04C08J2483/04
Inventor 魏葳张宇曦张苗常晶晶林珍华苏杰胡赵胜张凡
Owner XIDIAN UNIV
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