A fully flexible and printable electrode preparation method

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 poor conductive uniformity and incomplete transfer of conductive films, and achieve improved conductivity. Uniformity, improved dispersion, and the effect of avoiding decomposition and fracture

Active Publication Date: 2022-07-26
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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  • A fully flexible and printable electrode preparation method
  • A fully flexible and printable electrode preparation method
  • A fully flexible and printable electrode preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Example 1: Sodium alginate with a mass percentage of 0.1% was used in the production of thickener, fluorocarbon surfactant FS-3100 with a mass percentage of 0.01% was used as a surfactant, and a polyether with a mass percentage of 0.001% was used as a leveling agent Modified organopolysiloxane MY-300, 0.01% by mass ethanolamine ETA as dispersant, 0.01% by mass benzoin bismethyl ether pyridine as UV finishing agent, and 0.01% by mass ethanol as defoamer fully flexible printable patterned electrodes.

[0030] Step 1: Fabrication of a polydimethylsiloxane PDMS substrate.

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

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

Embodiment 2

[0041] Example 2: The thickening agent was made of 1% sodium carboxymethyl cellulose CMC, the surfactant was 0.5% TF380, and the leveling agent was 0.1% Shanggao sago-3223 , The dispersing agent adopts sago9760 with a mass percentage of 0.5%, the ultraviolet finishing agent adopts a mass percentage of 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 based defoamer MO-2170.

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

[0043] First, take 10g of polydimethylsiloxane PDMS precursor and mix it with 1g of curing agent and stir well, and then put it into a centrifuge for centrifugation to remove the bubbles that appeared 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...

Embodiment 3

[0053] Example 3: The thickener was made of 2.4% hydroxypropyl methylcellulose HPMC, the surfactant was 0.1% TF380, and the leveling agent was 0.02% Shanggao sago- 3223. The dispersing agent adopts Shanggao 9760 with a mass percentage of 0.1%, and the ultraviolet finishing agent adopts 2-(2ˊ-hydroxy-5′-methylphenyl) benzotriazole with a mass percentage of 0.01%, 0.01% 4- Benzoyloxy-2,6,2,6-tetramethylpiperidine, antifoaming agent using a fully flexible printable patterned electrode of 1% ethanol by mass.

[0054] Step A: Fabrication of a polydimethylsiloxane PDMS substrate.

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

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

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Abstract

The invention discloses a fully flexible and printable patterned electrode preparation method, which mainly solves the problems of poor electrical conductivity and low resolution of flexible electrodes in the prior art. The scheme is: heating and curing the PDMS precursor and curing agent, and cutting into PDMS substrates; adding organic solvent to silver nanowires, and adding thickener, surfactant, leveling agent, dispersant, and ultraviolet finishing agent in sequence , defoaming agent, and heating; wait for the solvent to evaporate until the silver nanowire solution is viscous, then add PDMS precursor and curing agent respectively to form an organic-based high-elastic conductive ink; take the conductive ink and place it on the screen. The patterned electrode is printed and cured; the patterned electrode is welded under ultraviolet light irradiation to obtain a fully flexible transparent conductive electrode. The invention improves the conductivity uniformity and resolution of the electrode, improves the structure and performance stability under the condition of flexible deformation, and can be used for the manufacture of 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 for the production 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 displays to fixed curved displays and flexible displays. 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 displays, electrodes are bound to develop towards full flexibility. [0003] The traditional indium tin oxide conductive glass ITO has excellent electrical conductivity and visible light band transmittance, and is a good choice for making electrodes. However, due to the inherent defects of ITO electrodes, such as fragility and fragility, expensive raw materials, and complicat...

Claims

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Application Information

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Patent Type & Authority Patents(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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