Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 27, Issue 35, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201702134
Keywords
buckle structures; carbon nanotubes; self-assembly; strain sensors; torsional sensors
Categories
Funding
- National Natural Science Foundation of China [U1533122, 91648109]
- National Key Research and Development Program of China [2017YFB030700]
- Science and Technology Support Program of Changzhou [CZ20140013, CJ20159037, CZ20150018, CE20155017]
- Innovation and Enterprise Shuangchuang Talents Plan of Jiangsu province
- Priority Academic Program Development of Jiangsu Higher Education Institutions on Renewable Energy Materials Science and Engineering
- Jiangsu Key Laboratory for Photovoltaic Engineering Science
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Current research about resistive sensors is rarely focusing on improving the strain range and linearity of resistance-strain dependence. In this paper, a bi-sheath buckled structure is designed containing buckled carbon nanotube sheets and buckled rubber on rubber fiber. Strain decrease results in increasing buckle contact by the rubber interlayer and a large decrease in resistance. The resulting strain sensor can be reversibly stretched to 600%, undergoing a linear resistance increase as large as 102% for 0-200% strain and 160% for 200-600% strain. This strain sensor shows high linearity, fast response time, high resolution, excellent stability, and almost no hysteresis.
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