A Stretchable Yarn Embedded Triboelectric Nanogenerator as Electronic Skin for Biomechanical Energy Harvesting and Multifunctional Pressure Sensing
A Stretchable Yarn Embedded Triboelectric Nanogenerator as Electronic Skin for Biomechanical Energy Harvesting and Multifunctional Pressure Sensing
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可拉伸纱线嵌入式摩擦纳米发电机作为电子皮肤，用于生物机械能量收集和多功能压力传感
DOI：
10.1002/adma.201804944
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发表时间：
2018-10-25
影响因子：
29.4
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Dong, Kai;Wu, Zhiyi;Wang, Zhong Lin
能够进行能量收集和自供电感测的柔性和可拉伸物理传感器对于可穿戴电子产品的快速发展至关重要。即便如此，很少有研究能够将能量收集和自供电传感集成到单个电子皮肤中。在这里，开发了一种可拉伸和可清洗的皮肤启发的摩擦电纳米发电机（SI-TENG），用于生物力学能量收集和多功能压力传感。一个平面和可设计的导电纱线网络由一个三股捻镀银尼龙纱线被嵌入到柔性弹性体，赋予SI-TENG所需的拉伸性，良好的灵敏度，高检测精度，快速响应，和优异的机械稳定性。SI-TENG的最大平均功率密度为230 mW m（-2），能够点亮170个发光二极管，为各种电容器充电，并驱动微型电子产品。作为一种自供电的多功能传感器，SI-TENG被用来监测人体生理信号，如动脉脉搏和声音振动。此外，智能假手，自供电计步器/速度计，灵活的数字键盘，以及具有8 x 8传感像素的概念验证压力传感器阵列相继展示，以进一步证实其多功能的应用前景。基于这些优点，所开发的SI-TENG在可穿戴供电技术、生理监测、智能假肢和人机接口方面具有广阔的应用前景。
Flexible and stretchable physical sensors capable of both energy harvesting and self-powered sensing are vital to the rapid advancements in wearable electronics. Even so, there exist few studies that can integrate energy harvesting and self-powered sensing into a single electronic skin. Here, a stretchable and washable skin-inspired triboelectric nanogenerator (SI-TENG) is developed for both biomechanical energy harvesting and versatile pressure sensing. A planar and designable conductive yarn network constructed from a three-ply-twisted silver-coated nylon yarn is embedded into flexible elastomer, endowing the SI-TENG with desired stretchability, good sensitivity, high detection precision, fast responsivity, and excellent mechanical stability. With a maximum average power density of 230 mW m(-2), the SI-TENG is able to light up 170 light-emitting diodes, charge various capacitors, and drive miniature electronic products. As a self-powered multifunctional sensor, the SI-TENG is adopted to monitor human physiological signals, such as arterial pulse and voice vibrations. Furthermore, an intelligent prosthetic hand, a self-powered pedometer/speedometer, a flexible digital keyboard, and a proof-of-concept pressure-sensor array with 8 x 8 sensing pixels are successively demonstrated to further confirm its versatile application prospects. Based on these merits, the developed SI-TENG has promising applications in wearable powering technology, physiological monitoring, intelligent prostheses, and human-machine interfaces.