Surface strain redistribution on structured microfibers to enhance sensitivity of fiber-shaped stretchable strain sensors

Fiber-shaped stretchable strain sensors with small testing areas can be directly woven into textiles. This paves the way for the design of integrated wearable devices capable of obtaining real-time mechanical feedback for various applications. However, for a simple fiber that undergoes uniform strai...

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Main Authors: Liu, Zhiyuan, Qi, Dianpeng, Hu, Guoyu, Wang, Han, Jiang, Ying, Chen, Geng, Luo, Yifei, Loh, Xian Jun, Liedberg, Bo, Chen, Xiaodong
Other Authors: School of Materials Science & Engineering
Format: Journal Article
Language:English
Published: 2020
Subjects:
Online Access:https://hdl.handle.net/10356/138696
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author Liu, Zhiyuan
Qi, Dianpeng
Hu, Guoyu
Wang, Han
Jiang, Ying
Chen, Geng
Luo, Yifei
Loh, Xian Jun
Liedberg, Bo
Chen, Xiaodong
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Liu, Zhiyuan
Qi, Dianpeng
Hu, Guoyu
Wang, Han
Jiang, Ying
Chen, Geng
Luo, Yifei
Loh, Xian Jun
Liedberg, Bo
Chen, Xiaodong
author_sort Liu, Zhiyuan
collection NTU
description Fiber-shaped stretchable strain sensors with small testing areas can be directly woven into textiles. This paves the way for the design of integrated wearable devices capable of obtaining real-time mechanical feedback for various applications. However, for a simple fiber that undergoes uniform strain distribution during deformation, it is still a big challenge to obtain high sensitivity. Herein, a new strategy, surface strain redistribution, is reported to significantly enhance the sensitivity of fiber-shaped stretchable strain sensors. A new method of transient thermal curing is used to achieve the large-scale fabrication of modified elastic microfibers with intrinsic microbeads. The proposed strategy is independent of the active materials utilized and can be universally applied for various active materials. The strategy used here will shift the vision of the sensitivity enhancement method from the active materials design to the mechanical design of the elastic substrate, and the proposed strategy can also be applied to nonfiber-shaped stretchable strain sensors.
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spelling ntu-10356/1386962023-07-14T16:00:49Z Surface strain redistribution on structured microfibers to enhance sensitivity of fiber-shaped stretchable strain sensors Liu, Zhiyuan Qi, Dianpeng Hu, Guoyu Wang, Han Jiang, Ying Chen, Geng Luo, Yifei Loh, Xian Jun Liedberg, Bo Chen, Xiaodong School of Materials Science & Engineering Innovative Centre for Flexible Devices Institute of Materials Research and Engineering, A*STAR Engineering::Materials Beads Enhanced Sensitivity Fiber-shaped stretchable strain sensors with small testing areas can be directly woven into textiles. This paves the way for the design of integrated wearable devices capable of obtaining real-time mechanical feedback for various applications. However, for a simple fiber that undergoes uniform strain distribution during deformation, it is still a big challenge to obtain high sensitivity. Herein, a new strategy, surface strain redistribution, is reported to significantly enhance the sensitivity of fiber-shaped stretchable strain sensors. A new method of transient thermal curing is used to achieve the large-scale fabrication of modified elastic microfibers with intrinsic microbeads. The proposed strategy is independent of the active materials utilized and can be universally applied for various active materials. The strategy used here will shift the vision of the sensitivity enhancement method from the active materials design to the mechanical design of the elastic substrate, and the proposed strategy can also be applied to nonfiber-shaped stretchable strain sensors. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-05-12T02:14:19Z 2020-05-12T02:14:19Z 2018 Journal Article Liu, Z., Qi, D., Hu, G., Wang, H., Jiang, Y., Chen, G., . . . Chen, X. (2018). Surface strain redistribution on structured microfibers to enhance sensitivity of fiber-shaped stretchable strain sensors. Advanced Materials, 30(5), 1704229-. doi:10.1002/adma.201704229 0935-9648 https://hdl.handle.net/10356/138696 10.1002/adma.201704229 29226515 2-s2.0-85038080649 5 30 1704229 (1 of 8) 1704229 (8 of 8) en Advanced Materials © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Advanced Materials and is made available with permission of WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. application/pdf
spellingShingle Engineering::Materials
Beads
Enhanced Sensitivity
Liu, Zhiyuan
Qi, Dianpeng
Hu, Guoyu
Wang, Han
Jiang, Ying
Chen, Geng
Luo, Yifei
Loh, Xian Jun
Liedberg, Bo
Chen, Xiaodong
Surface strain redistribution on structured microfibers to enhance sensitivity of fiber-shaped stretchable strain sensors
title Surface strain redistribution on structured microfibers to enhance sensitivity of fiber-shaped stretchable strain sensors
title_full Surface strain redistribution on structured microfibers to enhance sensitivity of fiber-shaped stretchable strain sensors
title_fullStr Surface strain redistribution on structured microfibers to enhance sensitivity of fiber-shaped stretchable strain sensors
title_full_unstemmed Surface strain redistribution on structured microfibers to enhance sensitivity of fiber-shaped stretchable strain sensors
title_short Surface strain redistribution on structured microfibers to enhance sensitivity of fiber-shaped stretchable strain sensors
title_sort surface strain redistribution on structured microfibers to enhance sensitivity of fiber shaped stretchable strain sensors
topic Engineering::Materials
Beads
Enhanced Sensitivity
url https://hdl.handle.net/10356/138696
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