Wind energy harvesting and self-powered flow rate sensor enabled by contact electrification
Wind energy harvesting and self-powered flow rate sensor enabled by contact electrification
复制标题
通过接触电气化实现风能收集和自供电流量传感器
DOI：
10.1088/0022-3727/49/21/215601
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发表时间：
2016-06-02
影响因子：
3.4
通讯作者：
Jiang, Yadong
中科院分区：
文献类型：
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作者：
Su, Yuanjie;Xie, Guangzhong;Jiang, Yadong
我们研制了一种由氧化铟锡(ITO)薄膜和聚四氟乙烯(PTFE)薄膜组成的自由模摩擦电纳米发电机(F-TENG)。通过利用两个ITO电极之间聚四氟乙烯薄膜的风致共振，F-Teng提供高达37 V的开路电压和6.2μA的短路电流，可以作为可持续的电源，同时连续照亮数十个发光二极管(LED)和充电电容器。此外，将电极均匀地分成几个平行单元，有效地抑制了起伏薄膜的内部抵消作用，使输出电流提高了95%。F-Teng具有卓越的耐用性和输出电流与流量之间良好的线性关系，表明其作为一种自供电传感器检测风速的可行性。这项工作展示了摩擦发电机在气流收集器、自给式空中导航、自给式气体传感器和风矢量传感器中的潜在应用。
We have developed a free-standing-mode based triboelectric nanogenerator (F-TENG) that consists of indium tin oxide (ITO) foils and a polytetrafluoroethylene (PTFE) thin film. By utilizing the wind-induced resonance vibration of a PTFE film between two ITO electrodes, the F-TENG delivers an open-circuit voltage up to 37 V and a short-circuit current of 6.2 μA, which can be used as a sustainable power source to simultaneously and continuously light up tens of light emitting diodes (LEDs) and charge capacitors. Moreover, uniform division of the electrode into several parallel units efficiently suppresses the inner counteracting effect of undulating film and leads to an enhancement of output current by 95%. The F-TENG holds prominent durability and an excellent linear relationship between output current and flow rate, revealing its feasibility as a self-powered sensor for detecting wind speed. This work demonstrates potential applications of the triboelectric generator in gas flow harvesters, self-powered air navigation, self-powered gas sensors and wind vector sensors.