Flexible fiber-based hybrid nanogenerator for biomechanical energy harvesting and physiological monitoring
Flexible fiber-based hybrid nanogenerator for biomechanical energy harvesting and physiological monitoring
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DOI：
10.1016/j.nanoen.2017.05.047
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发表时间：
2017-08-01
期刊：
影响因子：
17.6
通讯作者：
Zhang, Haixia
中科院分区：
文献类型：
--
作者：
Chen, Xuexian;Song, Yu;Zhang, Haixia
随着人造电子皮肤和智能贴片等可穿戴电子产品的快速发展，收集生物力学能量并实现自供电传感对于实现系统的可持续和高效功能至关重要。在这里，我们报告了一种灵活的混合设备，它可以共形地附着在人体皮肤等柔软表面上，以基于静电纺丝纳米纤维垫收集多样性的触摸能量。借助摩擦起电和压电的工作机制，该装置在受到压应力刺激时，可以为TENG和PENG部分产生高达84μW/cm(2)和0.11μW/cm(2)的最大峰值功率，这可以提高能量收集效率并扩大其应用领域。凭借压电纳米材料的高灵敏度，该设备还可以附着在身体的不同部位，实时监测呼吸信息和桡动脉脉搏等人体生理信号，这在自供电电子皮肤和医疗保健监测系统中显示出潜在的价值。
With the rapid development of wearable electronics like artificial e-skins and smart patch, harvesting biomechanical energy and realizing self-powered sensing are of essential importance for achieving sustainable and efficient function of the system. Here we report a flexible hybrid device that can be conformally attached on soft surface like human skin to harvest diversity touch energies based on electrospun nanofiber mat. Facilitated by the working mechanisms of triboeletric and piezoelectric, the device can generate maximum peak power up to 84 mu W/cm(2) and 0.11 mu W/cm(2) for the TENG and PENG part when stimulated by a compressive stress, which can enhance the energy harvesting efficiency and expand its application areas. By virtue of the high sensitivity of the piezoelectric nanomaterial, the device can also be attached on different parts of body for real-time monitoring the human physiological signals such as respiratory information and radial artery pulse, which shows potential value in self-powered e-skins and healthcare monitoring systems.