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    Maximized Effective Energy Output of Contact-Separation-Triggered Triboelectric Nanogenerators as Limited by Air Breakdown

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    Type
    Article
    Authors
    Zi, Yunlong
    Wu, Changsheng
    Ding, Wenbo
    Wang, Zhong Lin cc
    Date
    2017-05-02
    Online Publication Date
    2017-05-02
    Print Publication Date
    2017-06
    Permanent link to this record
    http://hdl.handle.net/10754/626712
    
    Metadata
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    Abstract
    Recent progress in triboelectric nanogenerators (TENGs) has demonstrated their promising potential as a high-efficiency mechanical energy harvesting technology, and plenty of effort has been devoted to improving the power output by maximizing the triboelectric surface charge density. However, due to high-voltage air breakdown, most of the enhanced surface charge density brought by material/surface optimization or external ion injection is not retainable or usable for electricity generation during the operation of contact-separation-triggered TENGs. Here, the existence of the air breakdown effect in a contact-separation mode TENG with a low threshold surface charge density of ≈40–50 µC m−2 is first validated under the high impedance external load, and then followed by the theoretical study of the maximized effective energy output as limited by air breakdown for contact-separation-triggered TENGs. The effects of air pressure and gas composition are also studied and propose promising solutions for reducing the air breakdown effect. This research provides a crucial fundamental study for TENG technology and its further development and applications.
    Citation
    Zi Y, Wu C, Ding W, Wang ZL (2017) Maximized Effective Energy Output of Contact-Separation-Triggered Triboelectric Nanogenerators as Limited by Air Breakdown. Advanced Functional Materials 27: 1700049. Available: http://dx.doi.org/10.1002/adfm.201700049.
    Sponsors
    Y.Z. and C.W. contributed equally to this work. This research was supported by the National Science Foundation (DMR-1505319), the KAUST, the Hightower Chair foundation, and the “Thousands Talents” program for pioneer researcher and his innovation team, China.
    Publisher
    Wiley
    Journal
    Advanced Functional Materials
    DOI
    10.1002/adfm.201700049
    ae974a485f413a2113503eed53cd6c53
    10.1002/adfm.201700049
    Scopus Count
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