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Stretchable 3D polymer for simultaneously mechanical energy harvesting and biomimetic force sensing
Nano Energy ( IF 17.6 ) Pub Date : 2018-03-10 , DOI: 10.1016/j.nanoen.2018.03.027
Jie Bian , Ning Wang , Jinming Ma , Yang Jie , Jingdian Zou , Xia Cao

Stretchability is an essential element for wearable electronics. Creating intelligent devices using stretchable polymers, which can simultaneously harvest mechanical energies and mimic the properties of fast adapting (FA) receptors, could be of significant importance for plastic bioelectronics and transistors. In this paper, we report an all-organic triboelectric nanogenerator (TENG) that enables both energy harvesting and biomimetic pressure sensing on the base of three-dimensional polypyrrole (PPy) network. By combining with polydimethylsiloxane (PDMS) and BaTiO3 nanoparticles, this composite triboelectric interface shows not only an enhanced uniaxial stretchability of up to 310%, but also a high short circuit current density of 18.0 mA m−2 in response to the environment or human motions. Such an excellent electric response further enables the sensitive detection of ambient mechanical energy. For example, the sensitivities of this stretchable device to acceleration, static and dynamic pressures are of 1.03 µA s2·m−1, 12.61 pF·kPa−1 and 57.78 µA MPa−1, respectively. In addition, sensitive responses to bending and curling force are also demonstrated. These results demonstrate an ideal way for developing self-driven electronic skins and biomimetic tactile sensors with intriguing flexibility, stretchability and sustainability.



中文翻译:

可拉伸的3D聚合物,可同时进行机械能收集和仿生力感测

延展性是可穿戴电子产品的基本要素。使用可伸展的聚合物创建智能设备,该设备可以同时收集机械能并模仿快速适应(FA)受体的特性,对于塑料生物电子学和晶体管而言可能具有重要意义。在本文中,我们报告了一种全有机摩擦纳米发电机(TENG),该发电机可在三维聚吡咯(PPy)网络的基础上实现能量收集和仿生压力感测。通过与聚二甲基硅氧烷(PDMS)和BaTiO 3纳米粒子结合,该复合摩擦电界面不仅显示出高达310%的增强的单轴拉伸性,而且还显示出18.0 mA m -2的高短路电流密度响应环境或人类运动。如此出色的电响应进一步使得能够灵敏地检测周围的机械能。例如,该可拉伸的装置的加速度,静压和动压的灵敏度是1.03μA小号2 ·米-1,12.61 pF的·帕-1和57.78μA兆帕-1,分别。此外,还展示了对弯曲和卷曲力的敏感响应。这些结果证明了开发具有吸引力,灵活性,可扩展性和可持续性的自驱动电子皮肤和仿生触觉传感器的理想方法。

更新日期:2018-03-10
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