On-Skin Triboelectric Nanogenerator and Self-Powered Sensor with Ultrathin Thickness and High Stretchability
On-Skin Triboelectric Nanogenerator and Self-Powered Sensor with Ultrathin Thickness and High Stretchability
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DOI：
10.1002/smll.201702929
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发表时间：
2017-12-20
期刊：
影响因子：
13.3
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Chen, Xiangyu;Wu, Yali;Wang, Zhong Lin
研究者们在可穿戴电子产品上投入了大量的精力来追求轻量化和高柔性，这也要求相关的能量收集设备具有薄的厚度和高的拉伸性。因此，提出了一种可作为人体第二皮肤的弹性摩擦电纳米发电机（TENG）。这种TENG的总厚度约为102 μ m，器件可以在100%应变下持久工作。在弹性体薄膜表面涂敷碳脂作为可拉伸电极，实现了电极的精细几何控制。这种弹性TENG甚至可以在不干扰身体运动的情况下作用于人的手指。接触面积为9 cm（2）的器件的开路电压和短路电流分别可达115 V和3 μ A。两种自供电传感器系统的优化识别策略也被设计来证明这种弹性TENG的应用可能性。这种TENG具有良好的厚度、高拉伸性和精细几何控制的上级特性，可以在可穿戴自供电传感系统、电子皮肤、人工肌肉和软机器人领域中促进许多潜在的应用。
Researchers have devoted a lot of efforts on pursuing light weight and high flexibility for the wearable electronics, which also requires the related energy harvesting devices to have ultrathin thickness and high stretchability. Hence, an elastic triboelectric nanogenerator (TENG) is proposed that can serve as the second skin on human body. The total thickness of this TENG is about 102 mu m and the device can work durably under a strain of 100%. The carbon grease is painted on the surface of elastomer film to work as stretchable electrode and thus the fine geometry control of the electrode can be achieved. This elastic TENG can even work on the human fingers without disturbing body movement. The open-circuit voltage and short-circuit current from the device with a contact area of 9 cm(2) can reach 115 V and 3 mu A, respectively. Two kinds of self-powered sensor systems with optimized identification strategies are also designed to demonstrate the application possibility of this elastic TENG. The superior characteristics of ultrathin thickness, high stretchability, and fine geometry control of this TENG can promote many potential applications in the field of wearable self-powered sensory system, electronics skin, artificial muscles, and soft robotics.