A crack compensation strategy for highly stretchable conductors based on liquid metal inclusions
A crack compensation strategy for highly stretchable conductors based on liquid metal inclusions
Crack control strategies have been proven very useful for enhancing the stretchability of metal film-based stretchable conductors. However, existing strategies often suffer from the drawbacks of complicated preparation and predefined effective directions. Here, we propose a crack compensation strategy for preparing conductors featured with high stretchability by using liquid metal microparticles (LMMPs)-embedded polydimethylsiloxane (PDMS) as the substrate with a thin film of gold (Au) sputtered on the surface. LMMPs can be elongated to connect the cracked Au film upon stretching, which can form a conductive “island-tunnel” (IT) architecture to compensate for the cracks and maintain the conductivity. The high performance of the stretchable conductor is demonstrated by using it as electrodes to record surface electromyography of human brachioradialis and monitor electrocorticography signals of a rat in normal and epileptic states. The developed strategy shows the potential to provide a new perspective for the fabrication of flexible electronics.
electrical materials, materials characterization techniques, Materials property
Li, Guoqiang
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Ma, Xing
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Xu, Zirong
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Shen, Yifeng
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Yuan, Man
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Huang, Jianping
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Cole, Tim
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Wei, Jingjing
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Liu, Sanhu
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Han, Fei
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Li, Hanfei
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Bayinqiaoge,
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Xu, Zhiwu
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Tang, Shi Yang
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Liu, Zhiyuan
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17 November 2022
Li, Guoqiang
fcbbe68a-ee0c-4685-b7c9-7658c522303c
Ma, Xing
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Xu, Zirong
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Shen, Yifeng
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Yuan, Man
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Huang, Jianping
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Cole, Tim
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Wei, Jingjing
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Liu, Sanhu
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Han, Fei
692f8619-4360-4d3f-a1bb-445864be49b5
Li, Hanfei
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Bayinqiaoge,
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Xu, Zhiwu
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Tang, Shi Yang
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Liu, Zhiyuan
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Li, Guoqiang, Ma, Xing, Xu, Zirong, Shen, Yifeng, Yuan, Man, Huang, Jianping, Cole, Tim, Wei, Jingjing, Liu, Sanhu, Han, Fei, Li, Hanfei, Bayinqiaoge, , Xu, Zhiwu, Tang, Shi Yang and Liu, Zhiyuan
(2022)
A crack compensation strategy for highly stretchable conductors based on liquid metal inclusions.
iScience, 25 (12), [105495].
(doi:10.1016/j.isci.2022.105495).
Abstract
Crack control strategies have been proven very useful for enhancing the stretchability of metal film-based stretchable conductors. However, existing strategies often suffer from the drawbacks of complicated preparation and predefined effective directions. Here, we propose a crack compensation strategy for preparing conductors featured with high stretchability by using liquid metal microparticles (LMMPs)-embedded polydimethylsiloxane (PDMS) as the substrate with a thin film of gold (Au) sputtered on the surface. LMMPs can be elongated to connect the cracked Au film upon stretching, which can form a conductive “island-tunnel” (IT) architecture to compensate for the cracks and maintain the conductivity. The high performance of the stretchable conductor is demonstrated by using it as electrodes to record surface electromyography of human brachioradialis and monitor electrocorticography signals of a rat in normal and epileptic states. The developed strategy shows the potential to provide a new perspective for the fabrication of flexible electronics.
Text
1-s2.0-S2589004222017679-main
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More information
Accepted/In Press date: 1 November 2022
e-pub ahead of print date: 4 November 2022
Published date: 17 November 2022
Additional Information:
Correction notice:
A correction has been attached to this output located at: https://doi.org/10.1016/j.isci.2023.106369
Funding Information:
This work was supported by the financial supports from Shenzhen Science and Technology Program ( KQTD20170809110344233 , ZDSYS20190902093209795 ), Shenzhen Bay Laboratory ( SZBL201906281005 ), the NSFC -Shenzhen Robotics Research Center Project ( U2013207 ), the National Natural Science Foundation of China ( 81927804 , 92163109 , U1913601 ), and Fundamental Research Funds for the Central Universities (Grant No. HIT.OCEF.2021032 ).
Keywords:
electrical materials, materials characterization techniques, Materials property
Identifiers
Local EPrints ID: 481764
URI: http://eprints.soton.ac.uk/id/eprint/481764
ISSN: 2589-0042
PURE UUID: ff629ddc-41da-44c1-83c6-0013da29207f
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Date deposited: 07 Sep 2023 16:35
Last modified: 18 Mar 2024 04:13
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Contributors
Author:
Guoqiang Li
Author:
Xing Ma
Author:
Zirong Xu
Author:
Yifeng Shen
Author:
Man Yuan
Author:
Jianping Huang
Author:
Tim Cole
Author:
Jingjing Wei
Author:
Sanhu Liu
Author:
Fei Han
Author:
Hanfei Li
Author:
Bayinqiaoge
Author:
Zhiwu Xu
Author:
Shi Yang Tang
Author:
Zhiyuan Liu
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