| Autor: |
Zhang Lei, Pan Jing, Zhang Zhang, Wu Hao, Yao Ni, Cai Dawei, Xu Yingxin, Zhang Jin, Sun Guofei, Wang Liqiang, Geng Weidong, Jin Wenguang, Fang Wei, Di Dawei, Tong Limin |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Opto-Electronic Advances, Vol 3, Iss 3, Pp 190022-1-190022-7 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2096-4579 |
| DOI: |
10.29026/oea.2020.190022 |
| Popis: |
Electronic skin, a class of wearable electronic sensors that mimic the functionalities of human skin, has made remarkable success in applications including health monitoring, human-machine interaction and electronic-biological interfaces. While electronic skin continues to achieve higher sensitivity and faster response, its ultimate performance is fundamentally limited by the nature of low-frequency AC currents. Herein, highly sensitive skin-like wearable optical sensors are demonstrated by embedding glass micro/nanofibers (MNFs) in thin layers of polydimethylsiloxane (PDMS). Enabled by the transition from guided modes into radiation modes of the waveguiding MNFs upon external stimuli, the skin-like optical sensors show ultrahigh sensitivity (1870 kPa-1), low detection limit (7 mPa) and fast response (10 μs) for pressure sensing, significantly exceeding the performance metrics of state-of-the-art electronic skins. Electromagnetic interference (EMI)-free detection of high-frequency vibrations, wrist pulse and human voice are realized. Moreover, a five-sensor optical data glove and a 2×2-MNF tactile sensor are demonstrated. These initial results pave the way toward a new category of optical devices ranging from ultrasensitive wearable sensors to optical skins. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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