Magnetic-Assisted Transparent and Flexible Percolative Composite for Highly Sensitive Piezoresistive Sensor via Hot Embossing Technology

Shan Wang; Guorui Chen; Shaoyu Niu; Kaifeng Chen; Tian Gan; Zongrong Wang; Hongzhu Wang; Piyi Du; Chi Wah Leung; Shaoxing Qu

doi:10.1021/acsami.9b16215

Magnetic-Assisted Transparent and Flexible Percolative Composite for Highly Sensitive Piezoresistive Sensor via Hot Embossing Technology

Shan Wang, Guorui Chen, Shaoyu Niu, Kaifeng Chen, Tian Gan, Zongrong Wang, Hongzhu Wang, Piyi Du, Chi Wah Leung, Shaoxing Qu

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

39 Citations (Scopus)

Abstract

A highly transparent and flexible percolative composite with magnetic reduced graphene oxide@nickel nanowire (mGN) fillers in EcoFlex matrix is proposed as a sensing layer to fabricate high-performance flexible piezoresistive sensors. Large excluded volume and alignment of mGN fillers contribute to low percolation threshold (0.27 vol %) of mGN-EcoFlex composites, leading to high electrical conductivity of 0.003 S m^-1, optical transmittance of 71.8%, and low Young's modulus of 122.8 kPa. Large-scale microdome templates for sensors are prepared by hot embossing technology cost-effectively and COMSOL Multiphysics is utilized to optimize the sensor performances. Piezoresistive sensors fabricated experimentally show superior average sensitivity of 1302.1 kPa^-1 with a low device-to-device variation of 3.74%, which provides a new way to achieve transparent, highly sensitive, and large-scale electronic skin.

Original language	English
Pages (from-to)	48331-48340
Number of pages	10
Journal	ACS Applied Materials and Interfaces
Volume	11
Issue number	51
DOIs	https://doi.org/10.1021/acsami.9b16215
Publication status	Published - 26 Dec 2019

Keywords

excluded volume
hot embossing
percolative composite
piezoresistive sensors
transparent

ASJC Scopus subject areas

General Materials Science

More information

10.1021/acsami.9b16215

http://hdl.handle.net/10397/100252

Cite this

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title = "Magnetic-Assisted Transparent and Flexible Percolative Composite for Highly Sensitive Piezoresistive Sensor via Hot Embossing Technology",

abstract = "A highly transparent and flexible percolative composite with magnetic reduced graphene oxide@nickel nanowire (mGN) fillers in EcoFlex matrix is proposed as a sensing layer to fabricate high-performance flexible piezoresistive sensors. Large excluded volume and alignment of mGN fillers contribute to low percolation threshold (0.27 vol %) of mGN-EcoFlex composites, leading to high electrical conductivity of 0.003 S m-1, optical transmittance of 71.8%, and low Young's modulus of 122.8 kPa. Large-scale microdome templates for sensors are prepared by hot embossing technology cost-effectively and COMSOL Multiphysics is utilized to optimize the sensor performances. Piezoresistive sensors fabricated experimentally show superior average sensitivity of 1302.1 kPa-1 with a low device-to-device variation of 3.74%, which provides a new way to achieve transparent, highly sensitive, and large-scale electronic skin.",

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Magnetic-Assisted Transparent and Flexible Percolative Composite for Highly Sensitive Piezoresistive Sensor via Hot Embossing Technology. / Wang, Shan; Chen, Guorui; Niu, Shaoyu et al.
In: ACS Applied Materials and Interfaces, Vol. 11, No. 51, 26.12.2019, p. 48331-48340.

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

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AU - Wang, Shan

AU - Chen, Guorui

AU - Niu, Shaoyu

AU - Chen, Kaifeng

AU - Gan, Tian

AU - Wang, Zongrong

AU - Wang, Hongzhu

AU - Du, Piyi

AU - Leung, Chi Wah

AU - Qu, Shaoxing

PY - 2019/12/26

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Magnetic-Assisted Transparent and Flexible Percolative Composite for Highly Sensitive Piezoresistive Sensor via Hot Embossing Technology

Abstract

Keywords

ASJC Scopus subject areas

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