Ultralong aligned single-walled carbon nanotubes on flexible fluorphlogopite mica for strain sensors |
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| Authors: | Muhong Wu Kaihui Liu Wenlong Wang Yu Sui Xuedong Bai Enge Wang |
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| Affiliation: | (1) Department of Chemistry, Duke University, Durham, North Carolina 27708, USA;(2) Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, National Laboratory of Rare Earth Material Chemistry and Application, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China; |
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| Abstract: | Single-walled carbon nanotubes (SWNTs) are expected to be an ideal candidate for making highly efficient strain sensing devices owing to their unique mechanical, electronic, and electromechanical properties. Here we present the use of fluorphlogopite mica (F-mica) as a flexible, high-temperature-bearing and mechanically robust substrate for the direct growth of horizontally aligned ultra-long SWNT arrays by chemical vapor deposition (CVD), which in turn enables the straightforward, facile, and cost-effective fabrication of macro-scale SWNT-array-based strain sensors. Strain sensing tests of the SWNT-array devices demonstrated fairly good strain sensitivity with high ON-state current density.  |
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