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Nano graphene tunneling effect based artificial skin and preparation method thereof

A nano-graphene and tunneling effect technology, applied in the field of nanotechnology, can solve the problems of prosthetic limbs that do not have a warm feeling of touch, no human skin, etc., and achieve the effects of superior electrical properties, superior device performance, and short production cycle.

Active Publication Date: 2013-03-27
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Prosthetic limbs have become better and better in recent years, but even the best don't have the most subtle sensations that human skin possesses, meaning they don't have the warm feeling of touching or being touched by someone else

Method used

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  • Nano graphene tunneling effect based artificial skin and preparation method thereof
  • Nano graphene tunneling effect based artificial skin and preparation method thereof
  • Nano graphene tunneling effect based artificial skin and preparation method thereof

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Embodiment Construction

[0027] The artificial skin of the present invention is based on the characteristics that graphene is the thinnest, strongest and most ductile material known, stretchable, and has good electrical properties. It uses the tunneling effect between nano-graphene islands to obtain a highly sensitive and scalable skin. Integrated strain sensor for multi-touch. Graphene films are composed of graphene islands with sizes ranging from a few nanometers to hundreds of nanometers. The grown graphene is transferred to a transparent flexible substrate (dimethylsiloxane PDMS / polyethylene terephthalate PET), and integrated small-scale nano-graphene sensors are made using traditional micro-processing methods. Due to the tunneling effect, the resistance has an exponential response to the tunneling distance, corresponding to the application of different stresses, the obtained resistance has a significant regular change.

[0028] Further description will be given below through specific examples. ...

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Abstract

The invention discloses a nano graphene tunneling effect based artificial skin and a preparation method thereof. The nano graphene tunneling effect based artificial skin comprises a flexible substrate, a graphene layer and a metal electrode, wherein a device which can sense stresses and is composed of the metal electrode and graphene is located on the flexible substrate. The artificial skin is provided with good features of the graphene and has the advantages of being good in monatomic layer thickness and malleability, high in crushing resistance, good in electrical property and the like.

Description

technical field [0001] The invention belongs to the field of nanotechnology, and in particular relates to an artificial skin based on the tunneling effect of nano graphene and a preparation method thereof. Background technique [0002] Of all the human organs, the skin is often neglected and mistreated by us, however, the skin is very reliable, it is the "protector" of our body organs and tissues, helping us avoid harm by transmitting various senses, ensuring that we are in the right place. temperature and environment. [0003] Prosthetic limbs have become more sophisticated in recent years, but even the best prosthetics don't have the most subtle sensations that human skin possesses, meaning they don't have the warm feeling of touching or being touched by someone else. However, the new electronic skin is a big step closer to creating prosthetic limbs with a sense of touch. Germany's Philip Mittendorfer and others made a circuit board that can simulate the light touch of h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/10A61L27/60A61L27/50A61L27/02A61L27/04
Inventor 张广宇时东霞赵静
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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