Metallic Sandwiched-Aerogel Hybrids Enabling Flexible and Stretchable Intelligent Sensor
| Autor: | Hongjian Zhang, Zhentao Nie, Wei Huang, Yufei Lu, Yuhang Du, Yu Zhang, Kui Xu, Jixin Zhu, Wenqi Han |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Fabrication Mechanical Engineering Vanadium nitride Bioengineering Nanotechnology Aerogel 02 engineering and technology General Chemistry Carbon nanotube 021001 nanoscience & nanotechnology Condensed Matter Physics Durability law.invention chemistry.chemical_compound Intelligent sensor chemistry Gauge factor law General Materials Science 0210 nano-technology Electrical conductor |
| Zdroj: | Nano Letters. 20:3449-3458 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/acs.nanolett.0c00372 |
| Popis: | Flexible strain sensors have been widely investigated with their rapid development in human-machine interfaces, soft robots, and medical care monitoring. Here, we report a new in situ catalytic strategy toward the fabrication of metallic aerogel hybrids, which are composed of vanadium nitride (VN) nanosheets decorated with well-defined vertically aligned carbon nanotube arrays (VN/CNTs) for the first time. In this architecture, the two-dimensional VN nanosheets as the main bone structure are favorable for the flexible devices due to their excellent structural compatibility during the repetitive deforming process. In addition, the sandwiched aerogel hybrids form highly conductive 3D network, affording outstanding sensitivity for the strain-responsive behaviors. Further, the VN/CNTs-based flexible strain sensors are successfully fabricated, showing a high gauge factor of 386 within a small strain of 10%, fast response, and extraordinary durability. The monitoring of physical signals and an actual real-time human-machine controlling system based on the sensors are also presented. |
| Databáze: | OpenAIRE |
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