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Color-variable flexible electronic skin and preparation method thereof

An electronic skin and flexible technology, applied in the field of color-changing flexible electronic skin and its preparation, can solve the problems of high cost and complicated electronic skin process, and achieve the effect of low cost, obvious resistance change and simple structure

Pending Publication Date: 2019-05-17
SHANTOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a color-changing flexible electronic skin. Based on the color change principle of a bionic natural chameleon, a flexible pressure sensor and a flexible electrochromic device are integrated to form a successful discharge circuit to control the color change of the electronic skin; it is used for natural people, artificial intelligence and The robot monitors the environment; to solve the current technical problems such as the complicated process and high cost of preparing electronic skin

Method used

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  • Color-variable flexible electronic skin and preparation method thereof
  • Color-variable flexible electronic skin and preparation method thereof
  • Color-variable flexible electronic skin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation of a color-changing flexible electronic skin mainly includes the following steps:

[0032] Step 1. Preparation of polydimethylsiloxane (PDMS) substrate: PDMS and curing agent were mixed in a ratio of 10:1 and stirred for 5 minutes, then the mixture was placed in a vacuum drying oven to exhaust and dry until no visible Pour the PDMS mixture into a plastic box with a diameter of 10 cm, put it on a heating plate and cure it at a temperature of 65 ° C for 7 hours to prepare a PDMS substrate with uniform thickness.

[0033] Step 2, preparation of bump microstructure PDMS: make a silicon mold with many regular pit arrays by plasma etching, the mold is as follows figure 2 As shown; PDMS and curing agent were mixed in a ratio of 10:1 and stirred for 5 minutes, then the mixture was placed in a vacuum drying oven to ventilate and dry until no bubbles were seen, and the PDMS mixture was poured into a silicon template and placed in a heated The board was cured at a ...

Embodiment 2

[0041] Step 1. Preparation of polydimethylsiloxane (PDMS) substrate: PDMS and curing agent were mixed in a ratio of 10:1 and stirred for 2 minutes, then the mixture was placed in a vacuum drying oven to exhaust and dry until no visible Pour the PDMS mixture into a plastic box with a diameter of 10 cm, put it on a heating plate and cure it at a temperature of 65 ° C for 7 hours to prepare a PDMS substrate with uniform thickness.

[0042] Step 2. Preparation of bump microstructure PDMS: use plasma etching to make a silicon mold with many regular pit arrays; mix PDMS and curing agent at a ratio of 10:1 and stir for 2 minutes, then place the mixture in a vacuum to dry Air and dry in the box until no bubbles can be seen, pour the PDMS mixture into the silicon template, put it on a heating plate and cure it at 65°C for 7 hours, and prepare a PDMS substrate with a bump microstructure with uniform thickness.

[0043] Step 3, preparation of the single-walled carbon nanotube film: the P...

Embodiment 3

[0050] Step 1. Preparation of polydimethylsiloxane (PDMS) substrate: PDMS and curing agent were mixed in a ratio of 10:1 and stirred for 3 minutes, then the mixture was placed in a vacuum drying oven to exhaust and dry until no visible Pour the PDMS mixture into a plastic box with a diameter of 10 cm, put it on a heating plate and cure it at a temperature of 65 ° C for 7 hours to prepare a PDMS substrate with uniform thickness.

[0051] Step 2. Preparation of bump microstructure PDMS: use plasma etching to make a silicon mold with many regular pit arrays; mix PDMS and curing agent at a ratio of 10:1 and stir for 5 minutes, then place the mixture in a vacuum to dry Air and dry in the box until no bubbles can be seen, pour the PDMS mixture into the silicon template, put it on a heating plate and cure it at 65°C for 7 hours, and prepare a PDMS substrate with a bump microstructure with uniform thickness.

[0052] Step 3, preparation of the multi-walled carbon nanotube film: the PD...

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Abstract

The invention relates to a color-variable flexible electronic skin and a preparation method thereof. The preparation method comprises the steps of: (1) preparing a PDMS substrate; (2) preparing a salient point microstructure PDMS; (3) preparing a conductive graphite type thin film salient point microstructure PDMS substrate; (4) preparing a TCO / PDMS counter electrode substrate; (5) placing the TCO / PDMS counter electrode substrate on the conductive graphite type thin film salient point microstructure PDMS substrate to form a resistive pressure sensor; (6) preparing solid / colloidal electrolyte;(7) preparing a flexible ECD; and (8) integrating a flexible ECD with the resistive pressure sensor to form a power amplifier circuit. The color-variable flexible electronic skin is a chameleon simulating color-variable skin, has relatively good performance to pass color variation, and is capable of feeling external temperature and surrounding environment change and giving alarm or prompt. The preparation method is simple, efficient and low in cost, is capable of realizing reel-to-reel industrial production and can be used for monitoring, for environment, of natural people, artificial intelligence and robots.

Description

technical field [0001] The invention relates to the technical field of flexible electronics, in particular to a color-changing flexible electronic skin and its preparation. Background technique [0002] With the increasing development of intelligent technology, its integration with society, human production and life is getting closer and closer, and its influence on us is deepening day by day. There is no doubt that intelligent technology, especially electronic skin, will shine in the medical field. For example, by implanting some wearable devices into clothes, skin and other parts, real-time monitoring of its own physiological parameters can be realized, and functions such as networking and timely prediction and alarm of human health index can be realized at any time. [0003] At present, many researchers at home and abroad are investing in the development of artificial electronic skin, and many different types of flexible electronic materials are used to manufacture electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/20G02F1/153
Inventor 徐从康
Owner SHANTOU UNIV
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