Preparation of a flexible patterned electrode and flexible electronic devices

An electronic equipment and patterning technology, which is applied in equipment for manufacturing conductive/semiconducting layers, cable/conductor manufacturing, circuits, etc., can solve problems such as limited application scope, single electrode pattern, and increased cost, and achieve expanded use. range effect

Active Publication Date: 2022-02-22
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the above-mentioned methods can prepare flexible electrodes and flexible electrode materials with good electrical conductivity, the prepared electrode pattern is single, and other patterns cannot be made according to requirements, which will cause other costs in practical applications. High, limited scope of application and other issues

Method used

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  • Preparation of a flexible patterned electrode and flexible electronic devices
  • Preparation of a flexible patterned electrode and flexible electronic devices
  • Preparation of a flexible patterned electrode and flexible electronic devices

Examples

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Effect test

preparation example Construction

[0047] like figure 1 As shown, the preparation method of the flexible electrode provided by one embodiment of the present invention includes the following steps:

[0048] Step S110: forming a first polydimethylsiloxane layer on the filter paper.

[0049] In one embodiment, forming the first polydimethylsiloxane layer on the filter paper includes the following steps: coating a solution containing polydimethylsiloxane and a curing agent on the filter paper, drying, and forming The first polydimethylsiloxane layer.

[0050] In one of the embodiments, the method of coating the solution containing polydimethylsiloxane and curing agent on the filter paper is spin coating, the spin coating speed is 400-700rpm, and the spin coating time is 8s-15s, The thickness of the first polydimethylsiloxane layer is 50-200 microns.

[0051] Step S120: Carry out personalized pattern cutting on the filter paper formed with the first polydimethylsiloxane layer.

[0052] Specifically, the cutting ...

Embodiment 1

[0070] The preparation process of the tactile sensor of this implementation is as follows:

[0071] (1) The solution containing polydimethylsiloxane and curing agent was spin-coated on filter paper at 400 rpm, and dried to form the first polydimethylsiloxane layer.

[0072] (2) Carry out personalized pattern cutting on the filter paper formed with the first polydimethylsiloxane layer.

[0073] (3) In an ice bath environment, the carbon nanotubes and the absolute ethanol are mixed at a solid-to-liquid ratio of 0.004g: 80ml, and the carbon nanotubes are mixed with the absolute ethanol at 0°C Ultrasonic dispersion to obtain a mixture, the mixture was centrifuged, and the supernatant was taken to obtain a dispersion of the carbon nanotubes, and the poly(3,4-ethylenedioxythiophene)-polystyrenesulfonic acid was mixed with the The volume ratio of the dispersion of the carbon nanotubes is 5ml and mixed, and then ultrasonically dispersed to obtain the mixed solution;

[0074] (4) Las...

Embodiment 2

[0077] The preparation process of the flexible electrode of this embodiment is roughly the same as that of Embodiment 1, except that the carbon nanotubes in step (2) of this embodiment are multi-walled carbon nanotubes.

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Abstract

In the preparation method of the flexible electrode provided by the present invention, the first polydimethylsiloxane layer is formed on the filter paper, and the filter paper formed with the first polydimethylsiloxane layer is subjected to personalized pattern cutting , mixing carbon nanotubes and absolute ethanol for ultrasonic dispersion, and then mixing with poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid to obtain a mixed solution, which is placed on the personalized patterned cutting Suction filtration is performed on the filter paper formed with the first polydimethylsiloxane layer to form an electrode layer; a second polydimethylsiloxane layer is formed on the electrode layer, and is cured by heating to obtain The flexible electrode, the carbon nanotube flexible patterned electrode prepared by using the personalized PDMS template in the present invention, can change its shape arbitrarily, and can be used in conjunction with any curved surface, which expands the scope of use.

Description

technical field [0001] The invention relates to a patterned flexible electrode prepared by using a personalized PDMS template, a preparation method thereof, and a flexible electronic device. Background technique [0002] In recent years, with the rise of flexible electronic devices, flexible electrodes have also become a research hotspot, but the bendability and single pattern of flexible electrodes seriously restrict the development of flexible electronic devices. Among the materials used for flexible electrodes, carbon materials are the most widely used category, because carbon materials have the advantages of good physical and chemical stability, mechanical properties and environmental friendliness, especially their ultra-high specific surface area and good The conductivity makes it a current research hotspot, and it is applied in most electrode preparation processes. In addition, among carbon materials, carbon nanotubes have the advantage of low cost compared with graph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00H01B5/14G09F9/30C08J7/044C09D165/00C09D125/18C09D5/24C08L83/04
CPCH01B13/0026H01B5/14C08J7/042C08J7/044C09D165/00C09D125/18C09D5/24G09F9/301C08J2383/04C08J2483/04C08J2465/00C08J2425/18C08K2201/011
Inventor 李晖王磊
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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