ELECTRONIC SKIN, PREPARATION METHOD AND USE THEREOF
First Claim
1. A piezoresistive electronic skin, characterized by comprising:
- a plurality of overlapped flexible substrates;
a conductive layer arranged on contact surface of adjacent flexible substrates, wherein at least one contact area of said conductive layer has non-planar structure; and
conductive electrodes electrically connected with said conductive layer.
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Abstract
The invention provides a piezoresistive electronic skin, a preparation method and a use thereof. The piezoresistive electronic skin uses carbon nanotube film as the conductive layer and uses materials provided with micro-nano patterns, such as polydimethylsiloxane, polyethylene terephthalate, polyvinyl alcohol, polyvinyl formal, polyethylene, and so on, as the substrate, enabling the substrate has advantages of high flexibility and being pliable, and it needs low operating voltage and little power consumption, but has high sensitivity and short response time. More importantly, the invention uses the patterned flexible substrate as the basis, greatly improving the sensitivity of electronic skin reacting to tiny applied force from outside. The invention also provides a capacitive electronic skin and a preparation method thereof. Further, the invention also provides a use of the piezoresistive electronic skin or the capacitive electronic skin on speech recognition, pulse detection, medical robot, etc.
78 Citations
38 Claims
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1. A piezoresistive electronic skin, characterized by comprising:
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a plurality of overlapped flexible substrates; a conductive layer arranged on contact surface of adjacent flexible substrates, wherein at least one contact area of said conductive layer has non-planar structure; and conductive electrodes electrically connected with said conductive layer. - View Dependent Claims (3, 6, 7, 8, 9, 10, 12, 19)
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2. (canceled)
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11. (canceled)
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13. A preparation method of the piezoresistive electronic skin, characterized by comprising steps as follows:
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S1. preparing two patterned flexible substrates; S2. preparing a solution for the conductive layer, respectively coating it to the patterned surfaces of the two flexible substrates to form conductive layers, assembling the conductive layers by making the patterned surfaces face to face to form a film device with the conductive layers being contacted with each other; S3. forming upper, lower conductive electrodes respectively on the two conductive layers by conductive material, and leading wires from the conductive electrodes, thereby obtaining a piezoresistive electronic skin. - View Dependent Claims (14, 15, 16)
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17-18. -18. (canceled)
- 20. A capacitive electronic skin, characterized by comprising a flexible sensitive layer, at least one of an upper surface and a lower surface of said sensitive layer having non-planar structure, and an upper electrode layer and a lower electrode layer respectively formed on the upper surface and the lower surface of said sensitive layer, at least one of the upper surface and the lower surface of said upper electrode layer has non-planar structure, and/or at least one of the upper surface and the lower surface of said lower electrode layer has non-planar structure.
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21. (canceled)
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24. (canceled)
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27. (canceled)
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29-31. -31. (canceled)
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32. A preparation method of the capacitive electronic skin, characterized by comprising steps as follows:
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S1. providing a template which is capable of being formed with said non-planar structure; S2. coating an organic molecular layer on the surface of the template; S3. forming a sensitive layer on the organic molecular layer; S4. stripping the solidified sensitive layer from the template after heat-treating it; S5. coating an upper electrode layer and a lower electrode layer respectively on the upper surface and the lower surface of the sensitive layer. - View Dependent Claims (33, 34, 35, 36)
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38-46. -46. (canceled)
Specification