KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Flexible triboelectric nanogenerator toward ultrahigh-frequency vibration sensing | |
Lin, Zhiwei1; Sun, Chenchen1; Zhang, Gaoqiang1; Fan, Endong1; Zhou, Zhihao1; Shen, Ziying1; Yang, Jun2 ; Liu, Mingyang1; Xia, Yushu1; Si, Shaobo1
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| 2022-05-24 | |
| 摘要 | Flexible high-frequency vibration sensors are highly desirable in various real-world applications such as structural health monitoring, environmental monitoring, and the internet of things. However, developing a facile and effective method to fabricate vibration sensors simultaneously featuring high vibration frequency response-ability and flexibility remains a grand challenge. Herein, we report a flexible ultrahigh-frequency triboelectric vibration sensor (UTVS) prepared by a layer-particle-layer structure. Owing to the flexibility of the materials (i.e., polyethylene terephthalate membrane) and the ultrahigh-frequency vibration response-ability of internal microparticles, the flexible UTVS exhibits an enhanced working frequency range of 3-170 kHz, which is much broader than previously reported triboelectric vibration sensors. Moreover, the UTVS can work not only in a flat state but also in a bent state due to its flexibility and the unique layer-particle-layer structural design. The UTVS shows nanometer-level vibration response-ability, omnidirectional response, stability in the temperature range of 10-70 degrees C, good frequency resolution of 0.01 kHz, and excellent performance in burst vibration detection (e.g., pencil lead break events and impact events from falling steel balls). With a collection of compelling features, the device is successfully demonstrated in vibration monitoring of curved structures (e.g., real-time water pipeline leak monitoring). Such a flexible ultrahigh-frequency triboelectric vibration sensor holds great potential in a wide range of practical applications, such as communication, health care, and infrastructure monitoring. |
| 关键词 | vibration sensing structural health monitoring flexible electronics self-powered sensor |
| DOI | 10.1007/s12274-022-4363-x |
| 发表期刊 | NANO RESEARCH
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| ISSN | 1998-0124 |
| 页码 | 8 |
| 通讯作者 | Yang, Jin(yangjin@cqu.edu.cn) |
| 收录类别 | SCI |
| WOS记录号 | WOS:000801081600001 |
| 语种 | 英语 |
