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Flexible stretchable electrode and preparation method thereof

An electrode and flexible technology, which is applied in the field of flexible stretchable electrodes and their preparation, can solve the problems of large surface roughness and low adhesion, and achieve the effects of low cost, enhanced adhesion, and improved stretchability

Pending Publication Date: 2021-11-09
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These structures can achieve high stretchability of hard metal-based electrodes, thereby promoting the application of hard metals in stretchable and soft electronics, but they have the disadvantages of large surface roughness and low adhesion.

Method used

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  • Flexible stretchable electrode and preparation method thereof
  • Flexible stretchable electrode and preparation method thereof
  • Flexible stretchable electrode and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, the preparation process of a flexible and stretchable electrode is carried out in the following steps:

[0043] 1)Si / SiO 2 Cleaning of the substrate: Ultrasound in deionized water, ethanol, acetone, and deionized water for 20 minutes respectively, and dry with high-purity nitrogen; finally, put the substrate in an oxygen plasma cleaner for 3 minutes.

[0044] 2) Preparation of polymer template: Polymethyl methacrylate and polystyrene were respectively dissolved in tetrahydrofuran to form a 3 mg / mL solution. Prepare a 10mL sample bottle, put it into a magnet, add 4mL of polymethyl methacrylate solution with a concentration of 3mg / mL and 1mL of polystyrene solution with a concentration of 3mg / mL, stir for 5min until the mixed solution is uniform, and take 200μL of The mixed solution was dropped onto the Si / SiO2 substrate, spin-coated at 1000rpm for 30s, and dried to obtain a polymer template with a surface morphology of nanocolumns.

[0045] ...

Embodiment 2

[0052] A method for preparing a flexible and stretchable electrode is carried out according to the following steps:

[0053] 1)Si / SiO 2 Cleaning of the substrate: Ultrasound in deionized water, ethanol, acetone, and deionized water for 25 minutes respectively, and dry with high-purity nitrogen; finally, put the substrate in an oxygen plasma cleaner for 5 minutes.

[0054] 2) Preparation of polymer template: Polymethyl methacrylate and polystyrene were respectively dissolved in tetrahydrofuran to form a 5 mg / mL solution. Prepare a 10mL sample bottle, put it into a magnet, add 4mL of polymethyl methacrylate solution with a concentration of 5mg / mL and 1mL of polystyrene solution with a concentration of 5mg / mL, stir for 5min until the mixed solution is uniform, and take 200μL of The mixed solution was dropped onto the Si / SiO2 substrate, spin-coated at 1500rpm for 30s, and dried to obtain a polymer template with a surface morphology of nanocolumns.

[0055] 3) Preparation of PDMS...

Embodiment 3

[0060] A method for preparing a flexible and stretchable electrode is carried out according to the following steps:

[0061] 1)Si / SiO 2 Cleaning treatment of the substrate: Sonicate it in deionized water, ethanol, acetone, and deionized water for 30 minutes respectively, and dry it with high-purity nitrogen; finally, put the substrate in an oxygen plasma cleaner for 4 minutes.

[0062] 2) Preparation of polymer template: Polymethyl methacrylate and polystyrene were respectively dissolved in tetrahydrofuran to form a 10 mg / mL solution. Prepare a 10mL sample bottle, put it into a magnet, add 4mL of polymethyl methacrylate solution with a concentration of 10mg / mL and 1mL of polystyrene solution with a concentration of 10mg / mL, stir for 5min until the mixed solution is uniform, and take 200μL of The mixed solution was dropped onto the Si / SiO2 substrate, spin-coated at 2000rpm for 30s, and dried to obtain a polymer template with a surface morphology of nanocolumns.

[0063] 3) Pr...

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Abstract

The invention discloses a flexible stretchable electrode and a preparation method thereof, and belongs to the technical field of flexible stretchable electrodes. The flexible stretchable electrode comprises a mercaptoethylamine modified polymer elastomer with micro-nano holes in the surface and a patterned metal electrode, the polymer elastomer is a substrate, and a snakelike patterned metal electrode is a top electrode. The mercaptoethylamine modified polymer elastomer substrate with the micro-nano holes in the surface is prepared by a polymer template method. The patterned metal electrode is prepared in a vacuum thermal evaporation mode. The flexible electrode is simple in preparation process, has high adhesive force and stretchability and low surface roughness, and has a wide application prospect in the field of flexible stretchable electronics.

Description

technical field [0001] The invention relates to the technical field of flexible and stretchable electrodes, in particular to a flexible and stretchable electrode and a preparation method thereof. Background technique [0002] In recent years, research on new-generation electronic devices such as flexible bionic electronic skins, wearable electronic devices, and flexible smart display products has developed rapidly. Among them, electrodes are one of the most important components of stretchable electronic devices, and how to achieve the controllable preparation of their high adhesion, high stretchability and high surface smoothness has attracted extensive attention. [0003] However, intrinsically flexible conductive materials do not exist in nature, and most flexible electrodes are currently composed of organic elastomeric polymers and inorganic conductive materials. This particular combination of materials faces an inherent problem related to interfacial adhesion, especiall...

Claims

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Application Information

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IPC IPC(8): H01B5/14H01B13/008
CPCH01B5/14H01B13/008
Inventor 刘举庆聂毅杰董雪梅李银祥黄维
Owner NANJING UNIV OF TECH
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