Highly stretchable and ultrathin nanopaper composites for epidermal strain sensors

Jingyao Sun; Yanan Zhao; Zhaogang Yang; Jingjing Shen; Eusebio Cabrera; Matthew J. Lertola; Willie Yang; Dan Zhang; Avi Benatar; Jose M. Castro; Daming Wu; L. James Lee

doi:10.1088/1361-6528/aacc59

Highly stretchable and ultrathin nanopaper composites for epidermal strain sensors

Jingyao Sun, Yanan Zhao, Zhaogang Yang, Jingjing Shen, Eusebio Cabrera, Matthew J. Lertola, Willie Yang, Dan Zhang, Avi Benatar, Jose M. Castro, Daming Wu, L. James Lee

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Abstract

Multifunctional electronics are attracting great interest with the increasing demand and fast development of wearable electronic devices. Here, we describe an epidermal strain sensor based on an all-carbon conductive network made from multi-walled carbon nanotubes (MWCNTs) impregnated with poly(dimethyl siloxane) (PDMS) matrix through a vacuum filtration process. An ultrasonication treatment was performed to complete the penetration of PDMS resin in seconds. The entangled and overlapped MWCNT network largely enhances the electrical conductivity (1430 S m^-1), uniformity (remaining stable on different layers), reliable sensing range (up to 80% strain), and cyclic stability of the strain sensor. The homogeneous dispersion of MWCNTs within the PDMS matrix leads to a strong interaction between the two phases and greatly improves the mechanical stability (ca. 160% strain at fracture). The flexible, reversible and ultrathin (<100 μm) film can be directly attached on human skin as epidermal strain sensors for high accuracy and real-time human motion detection.

Original language	English (US)
Article number	355304
Journal	Nanotechnology
Volume	29
Issue number	35
DOIs	https://doi.org/10.1088/1361-6528/aacc59
State	Published - Jun 27 2018
Externally published	Yes

Keywords

carbon nanotube nanopaper
high stretchability
poly(dimethyl siloxane) (PDMS)
ultrasonication
ultrathin strain sensor

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/1361-6528/aacc59

Cite this

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title = "Highly stretchable and ultrathin nanopaper composites for epidermal strain sensors",

abstract = "Multifunctional electronics are attracting great interest with the increasing demand and fast development of wearable electronic devices. Here, we describe an epidermal strain sensor based on an all-carbon conductive network made from multi-walled carbon nanotubes (MWCNTs) impregnated with poly(dimethyl siloxane) (PDMS) matrix through a vacuum filtration process. An ultrasonication treatment was performed to complete the penetration of PDMS resin in seconds. The entangled and overlapped MWCNT network largely enhances the electrical conductivity (1430 S m-1), uniformity (remaining stable on different layers), reliable sensing range (up to 80% strain), and cyclic stability of the strain sensor. The homogeneous dispersion of MWCNTs within the PDMS matrix leads to a strong interaction between the two phases and greatly improves the mechanical stability (ca. 160% strain at fracture). The flexible, reversible and ultrathin (<100 μm) film can be directly attached on human skin as epidermal strain sensors for high accuracy and real-time human motion detection.",

keywords = "carbon nanotube nanopaper, high stretchability, poly(dimethyl siloxane) (PDMS), ultrasonication, ultrathin strain sensor",

author = "Jingyao Sun and Yanan Zhao and Zhaogang Yang and Jingjing Shen and Eusebio Cabrera and Lertola, {Matthew J.} and Willie Yang and Dan Zhang and Avi Benatar and Castro, {Jose M.} and Daming Wu and Lee, {L. James}",

note = "Funding Information: The authors acknowledge the financial support of the Ohio Third Frontier IPP Program and National Natural Science Foundation of China (No. 51673020 and No. 51173015). Jingyao Sun would like to acknowledge the Chinese Scholarship Council for their financial support of this study. Publisher Copyright: {\textcopyright} 2018 IOP Publishing Ltd.",

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doi = "10.1088/1361-6528/aacc59",

language = "English (US)",

volume = "29",

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AU - Sun, Jingyao

AU - Zhao, Yanan

AU - Yang, Zhaogang

AU - Shen, Jingjing

AU - Cabrera, Eusebio

AU - Lertola, Matthew J.

AU - Yang, Willie

AU - Zhang, Dan

AU - Benatar, Avi

AU - Castro, Jose M.

AU - Wu, Daming

AU - Lee, L. James

N1 - Funding Information: The authors acknowledge the financial support of the Ohio Third Frontier IPP Program and National Natural Science Foundation of China (No. 51673020 and No. 51173015). Jingyao Sun would like to acknowledge the Chinese Scholarship Council for their financial support of this study. Publisher Copyright: © 2018 IOP Publishing Ltd.

PY - 2018/6/27

Y1 - 2018/6/27

N2 - Multifunctional electronics are attracting great interest with the increasing demand and fast development of wearable electronic devices. Here, we describe an epidermal strain sensor based on an all-carbon conductive network made from multi-walled carbon nanotubes (MWCNTs) impregnated with poly(dimethyl siloxane) (PDMS) matrix through a vacuum filtration process. An ultrasonication treatment was performed to complete the penetration of PDMS resin in seconds. The entangled and overlapped MWCNT network largely enhances the electrical conductivity (1430 S m-1), uniformity (remaining stable on different layers), reliable sensing range (up to 80% strain), and cyclic stability of the strain sensor. The homogeneous dispersion of MWCNTs within the PDMS matrix leads to a strong interaction between the two phases and greatly improves the mechanical stability (ca. 160% strain at fracture). The flexible, reversible and ultrathin (<100 μm) film can be directly attached on human skin as epidermal strain sensors for high accuracy and real-time human motion detection.

AB - Multifunctional electronics are attracting great interest with the increasing demand and fast development of wearable electronic devices. Here, we describe an epidermal strain sensor based on an all-carbon conductive network made from multi-walled carbon nanotubes (MWCNTs) impregnated with poly(dimethyl siloxane) (PDMS) matrix through a vacuum filtration process. An ultrasonication treatment was performed to complete the penetration of PDMS resin in seconds. The entangled and overlapped MWCNT network largely enhances the electrical conductivity (1430 S m-1), uniformity (remaining stable on different layers), reliable sensing range (up to 80% strain), and cyclic stability of the strain sensor. The homogeneous dispersion of MWCNTs within the PDMS matrix leads to a strong interaction between the two phases and greatly improves the mechanical stability (ca. 160% strain at fracture). The flexible, reversible and ultrathin (<100 μm) film can be directly attached on human skin as epidermal strain sensors for high accuracy and real-time human motion detection.

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KW - ultrasonication

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Highly stretchable and ultrathin nanopaper composites for epidermal strain sensors

Abstract

Keywords

ASJC Scopus subject areas

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