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Get Free AccessIn situ conversion of mechanical energy into electricity is a feasible solution to satisfy the increasing power demand of the Internet of Things (IoTs). A triboelectric nanogenerator (TENG) is considered as a potential solution via building self-powered systems. Based on the triboelectrification effect and electrostatic induction, a conventional TENG with pulsed AC output characteristics always needs rectification and energy storage units to obtain a constant DC output to drive electronic devices. Here, we report a next-generation TENG, which realizes constant current (crest factor, ~1) output by coupling the triboelectrification effect and electrostatic breakdown. Meanwhile, a triboelectric charge density of 430 mC m-2 is attained, which is much higher than that of a conventional TENG limited by electrostatic breakdown. The novel DC-TENG is demonstrated to power electronics directly. Our findings not only promote the miniaturization of self-powered systems used in IoTs but also provide a paradigm-shifting technique to harvest mechanical energy.
Di Liu, Xing Yin, Hengyu Guo, Linglin Zhou, Xinyuan Li, Chunlei Zhang, Jie Wang, Zhong Lin Wang (2019). A constant current triboelectric nanogenerator arising from electrostatic breakdown. , 5(4), DOI: https://doi.org/10.1126/sciadv.aav6437.
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Type
Article
Year
2019
Authors
8
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.1126/sciadv.aav6437
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