Wearable MXene nanocomposites-based strain sensor with tile-like stacked hierarchical microstructure for broad-range ultrasensitive sensing
| Autor: | Yonggang Wang, Liqun Zhang, Xiaoxuan Wu, Weixia Zhang, Mingyuan Chao, Di Ma, Pengbo Wan |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Fabrication Nanocomposite Renewable Energy Sustainability and the Environment business.industry Wearable computer 02 engineering and technology Substrate (electronics) 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Gauge factor Polyaniline Optoelectronics General Materials Science Sensitivity (control systems) Electrical and Electronic Engineering 0210 nano-technology business Layer (electronics) |
| Zdroj: | Nano Energy. 78:105187 |
| ISSN: | 2211-2855 |
| DOI: | 10.1016/j.nanoen.2020.105187 |
| Popis: | Flexible wearable strain sensors with high sensitivity, broad sensing range, large stretchability and low strain detectability have drawn tremendous interest for various applications in electronic skins, human motion detection, and medical diagnosis. However, conventional strain sensors usually showed narrow sensing range, low sensitivity, and complicated fabrication process, which restrict their potential applications in precise detection of vital healthcare signals. In this work, we report the fabrication of a flexible wearable strain sensor by using the MXene/polyaniline fiber (PANIF) (MXene/PANIF) nanocomposites sensing layer with tile-like stacked hierarchical microstructures, inspired from the overlapped rooftop tiles of the ancient palace. The MXene/PANIF nanocomposites sensing layer with tile-like stacked hierarchical microstructures is prepared via spreading MXene and PANIF layer on the elastic rubber substrate respectively. The assembled strain sensor can be used to detect broad-range (up to 80% strain) human motion with ultralow detection limit (0.1538% strain), high sensitivity (up to 2369.1 for the gauge factor (GF)), and excellent reproducibility and stability. Furthermore, the strain sensor could be coupled to a wireless transmitter for wirelessly human motion monitoring. Therefore, the wearable MXene nanocomposites-based strain sensor is a promising and attractive future electronic device for various real-time human motion detection, personal healthcare monitoring, and clinical diagnosis. |
| Databáze: | OpenAIRE |
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