Solution-synthesized chiral piezoelectric selenium nanowires for wearable self-powered human-integrated monitoring
Solution-synthesized chiral piezoelectric selenium nanowires for wearable self-powered human-integrated monitoring
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DOI：
10.1016/j.nanoen.2018.12.003
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发表时间：
2019-02
期刊：
影响因子：
17.6
通讯作者：
Min Wu;Yixiu Wang;Shengjie Gao;Ruoxing Wang;Chenxiang Ma;Zhiyuan Tang;Ning Bao;Wenxuan Wu
中科院分区：
文献类型：
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作者：
Min Wu;Yixiu Wang;Shengjie Gao;Ruoxing Wang;Chenxiang Ma;Zhiyuan Tang;Ning Bao;Wenxuan Wu
具有高拉伸性和自供电特性的智能传感设备在下一代可穿戴人机集成应用中是必不可少的。在这里，我们首次报道了硒（Se）纳米线可扩展合成和集成到可穿戴压电器件中，并探索了这种器件用于自供电传感应用的可行性，例如生理监测。该超薄装置可以贴合在人体上，通过拉伸压电硒纳米线，有效地将来自人体的难以察觉的时变机械振动转化为可识别的电信号，如手势、声音运动、桡动脉脉搏等。我们的研究结果表明，溶液合成硒纳米线是一种用于自供电生物医学设备的新型压电纳米材料，为能源、电子和传感器应用的新技术打开了大门。
Smart sensing devices with high stretchability and self-powered characteristics are essential in future generation wearable human-integrated applications. Here we report for the first time scalable synthesis and integration of selenium (Se) nanowires into wearable piezoelectric devices, and explore the feasibility of such devices for self-powered sensing applications, e.g., physiological monitoring. The ultrathin device can be conformably worn onto the human body, effectively converting the imperceptible time-variant mechanical vibration from the human body into distinguishable electrical signals, e.g., gesture, vocal movement, and radial artery pulse, through straining the piezoelectric Se nanowires. Our results suggest the potential of solution-synthesized Se nanowire a new class of piezoelectric nanomaterial for self-powered biomedical devices and opens doors to new technologies in energy, electronics, and sensor applications.