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Ultra-stretchable and highly sensitive strain sensor based on gradient structure carbon nanotubes
Binghao Liang1; Zhiqiang Lin1; Wenjun Chen1; Zhongfu He1; Jing Zhong2; Hai Zhu3; Zikang Tang4; Xuchun Gui1
2018-06-26
Source PublicationNANOSCALE
ISSN2040-3364
Volume10Issue:28Pages:13599-13606
Other Abstract

High stretchability and sensitivity of strain sensors are two properties that are very difficult to combine together into one material, due to the intrinsic dilemma of the opposite requirements of robustness of the conductive network. Therefore, the improvement of one property is always achieved at the expense of decreasing the other property, and preventing its practical application. Inspired by the micro-structure of the copolymer, which consists of stretchable amorphous and strong crystal domains, we developed a highly stretchable and sensitive strain sensor, based on innovative gradient carbon nanotubes (CNTs). By integrating randomly oriented and well aligned CNTs, acting as sensitive and stretchable conductive elements, respectively, into a continuous changing structure, our strain sensors successfully combine both a high sensitivity (gauge factor (GF) = 13.5) and ultra-stretchability (>550%). With a fast response speed (<33 ms) and recovery speed (<60 ms), lossless detection of a 8 Hz mechanical signal has been easily realized. In addition, the gradient CNTs strain sensors also showed great durability in a dynamic test of 12000 cycles, as well as extraordinary linearity and ultra-low working voltage (10 mV). These outstanding features mean our sensors have enormous potential for applications in health monitoring, sports performance monitoring and soft robotics.

DOI10.1039/c8nr02528b
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000439319000034
PublisherROYAL SOC CHEMISTRY
The Source to ArticleWOS
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Cited Times [WOS]:42   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorJing Zhong; Xuchun Gui
Affiliation1.State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275, China
2.Lab of Structures Dynamic Behavior and Control, School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090, China.
3.State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics, Sun Yat-Sen University, Guangzhou, 510275, China
4.Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, China
Recommended Citation
GB/T 7714
Binghao Liang,Zhiqiang Lin,Wenjun Chen,et al. Ultra-stretchable and highly sensitive strain sensor based on gradient structure carbon nanotubes[J]. NANOSCALE,2018,10(28):13599-13606.
APA Binghao Liang,Zhiqiang Lin,Wenjun Chen,Zhongfu He,Jing Zhong,Hai Zhu,Zikang Tang,&Xuchun Gui.(2018).Ultra-stretchable and highly sensitive strain sensor based on gradient structure carbon nanotubes.NANOSCALE,10(28),13599-13606.
MLA Binghao Liang,et al."Ultra-stretchable and highly sensitive strain sensor based on gradient structure carbon nanotubes".NANOSCALE 10.28(2018):13599-13606.
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