Skin-like strain sensors enabled by elastomer composites for human-machine interfaces

Chunki Yiu; Tsz Hung Wong; Yiming Liu; Kuanming Yao; Ling Zhao; Dengfeng Li; Zhao Hai; Huanxi Zheng; Zuankai Wang; Xinge Yu

doi:10.3390/COATINGS10080711

Skin-like strain sensors enabled by elastomer composites for human-machine interfaces

Chunki Yiu, Tsz Hung Wong, Yiming Liu, Kuanming Yao, Ling Zhao, Dengfeng Li, Zhao Hai, Huanxi Zheng, Zuankai Wang, Xinge Yu

Research output: Journal article publication › Journal article › Academic research › peer-review

21 Citations (Scopus)

Abstract

Flexible electronics exhibit tremendous potential applications in biosensing and human-machine interfaces for their outstandingmechanical performance and excellent electrical characteristics. In thiswork, we introduce a soft, skin-integrated strain sensor enabled by a ternary elastomer composite of graphene/carbon nanotube (CNT)/Ecoflex, providing a low-cost skin-like platform for conversion of mechanical motion to electricity and sensing of human activities. The device exhibits high sensitivity (the absolute value of the resistance change rate under a testing strain level, 26) and good mechanical stability (surviving ~hundreds of cycles of repeated stretching). Due to the advancedmechanical design of themetallic electrode, the strain sensor shows excellentmechanical tolerance to pressing, bending, twisting, and stretching. The flexible sensor can be directly mounted onto human skin for detecting mechanical motion, exhibiting its great potential in wearable electronics and human-machine interfaces.

Original language	English
Article number	711
Journal	Coatings
Volume	10
Issue number	8
DOIs	https://doi.org/10.3390/COATINGS10080711
Publication status	Published - 2020
Externally published	Yes

Keywords

CNT
Flexible electronics
Graphene
Skin-integrated electronics
Strain sensors

ASJC Scopus subject areas

Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

More information

10.3390/COATINGS10080711

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title = "Skin-like strain sensors enabled by elastomer composites for human-machine interfaces",

abstract = "Flexible electronics exhibit tremendous potential applications in biosensing and human-machine interfaces for their outstandingmechanical performance and excellent electrical characteristics. In thiswork, we introduce a soft, skin-integrated strain sensor enabled by a ternary elastomer composite of graphene/carbon nanotube (CNT)/Ecoflex, providing a low-cost skin-like platform for conversion of mechanical motion to electricity and sensing of human activities. The device exhibits high sensitivity (the absolute value of the resistance change rate under a testing strain level, 26) and good mechanical stability (surviving ~hundreds of cycles of repeated stretching). Due to the advancedmechanical design of themetallic electrode, the strain sensor shows excellentmechanical tolerance to pressing, bending, twisting, and stretching. The flexible sensor can be directly mounted onto human skin for detecting mechanical motion, exhibiting its great potential in wearable electronics and human-machine interfaces.",

keywords = "CNT, Flexible electronics, Graphene, Skin-integrated electronics, Strain sensors",

author = "Chunki Yiu and Wong, {Tsz Hung} and Yiming Liu and Kuanming Yao and Ling Zhao and Dengfeng Li and Zhao Hai and Huanxi Zheng and Zuankai Wang and Xinge Yu",

note = "Funding Information: This research was funded by City University of Hong Kong (Grant Nos. 9610423 and 9667199), Research Grants Council of the Hong Kong Special Administrative Region (Grant No. 21210820), and Science and Technology of Sichuan Province (Grant No. 2020YFH0181). Funding Information: Funding: This research was funded by City University of Hong Kong (Grant Nos. 9610423 and 9667199), Research Grants Council of the Hong Kong Special Administrative Region (Grant No. 21210820), and Science and Technology of Sichuan Province (Grant No. 2020YFH0181). Publisher Copyright: {\textcopyright} 2020 by the authors.",

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doi = "10.3390/COATINGS10080711",

language = "English",

volume = "10",

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AU - Yiu, Chunki

AU - Wong, Tsz Hung

AU - Liu, Yiming

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AU - Zhao, Ling

AU - Li, Dengfeng

AU - Hai, Zhao

AU - Zheng, Huanxi

AU - Wang, Zuankai

AU - Yu, Xinge

N1 - Funding Information: This research was funded by City University of Hong Kong (Grant Nos. 9610423 and 9667199), Research Grants Council of the Hong Kong Special Administrative Region (Grant No. 21210820), and Science and Technology of Sichuan Province (Grant No. 2020YFH0181). Funding Information: Funding: This research was funded by City University of Hong Kong (Grant Nos. 9610423 and 9667199), Research Grants Council of the Hong Kong Special Administrative Region (Grant No. 21210820), and Science and Technology of Sichuan Province (Grant No. 2020YFH0181). Publisher Copyright: © 2020 by the authors.

PY - 2020

Y1 - 2020

N2 - Flexible electronics exhibit tremendous potential applications in biosensing and human-machine interfaces for their outstandingmechanical performance and excellent electrical characteristics. In thiswork, we introduce a soft, skin-integrated strain sensor enabled by a ternary elastomer composite of graphene/carbon nanotube (CNT)/Ecoflex, providing a low-cost skin-like platform for conversion of mechanical motion to electricity and sensing of human activities. The device exhibits high sensitivity (the absolute value of the resistance change rate under a testing strain level, 26) and good mechanical stability (surviving ~hundreds of cycles of repeated stretching). Due to the advancedmechanical design of themetallic electrode, the strain sensor shows excellentmechanical tolerance to pressing, bending, twisting, and stretching. The flexible sensor can be directly mounted onto human skin for detecting mechanical motion, exhibiting its great potential in wearable electronics and human-machine interfaces.

AB - Flexible electronics exhibit tremendous potential applications in biosensing and human-machine interfaces for their outstandingmechanical performance and excellent electrical characteristics. In thiswork, we introduce a soft, skin-integrated strain sensor enabled by a ternary elastomer composite of graphene/carbon nanotube (CNT)/Ecoflex, providing a low-cost skin-like platform for conversion of mechanical motion to electricity and sensing of human activities. The device exhibits high sensitivity (the absolute value of the resistance change rate under a testing strain level, 26) and good mechanical stability (surviving ~hundreds of cycles of repeated stretching). Due to the advancedmechanical design of themetallic electrode, the strain sensor shows excellentmechanical tolerance to pressing, bending, twisting, and stretching. The flexible sensor can be directly mounted onto human skin for detecting mechanical motion, exhibiting its great potential in wearable electronics and human-machine interfaces.

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KW - Strain sensors

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Skin-like strain sensors enabled by elastomer composites for human-machine interfaces

Abstract

Keywords

ASJC Scopus subject areas

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