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Multi-dielectric-layered triboelectric nanogenerator as energized by the corona discharging

Abstract

Triboelectric nanogenerators (TENGs), are invented recently for meeting the power sources of small electronics and potentially to solve the worldwide energy crisis. Here, we developed a vertical contact-separation mode TENG based on a novel multi-dielectric-layered (MDL) structure, which was comprised of parylene C, polyimide and SiO2 films. By using the corona discharge approach, the surface charge density was enhanced to as high as 283 μC/m2, and especially the open-circuit voltage could be increased by a factor of 55 compared with the original value. Furthermore, the theoretical models were built to reveal the output characteristics and stored electrostatic energy of TENG. The influences of the structural parameters and operation conditions including effective dielectric thickness, dielectric constant, gap distance and air breakdown voltage, were investigated systematically. It was found that the output performances such as the peak voltage and power density are approximately proportional to the thickness of MDL film, but they would be restricted by the air breakdown voltage. These unique structures and models could be used to deepen the understanding of the fundamental mechanism of TENGs, and serve as an important guide for designing high performance TENG.

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Publication details

The article was received on 30 Mar 2017, accepted on 29 May 2017 and first published on 02 Jun 2017


Article type: Paper
DOI: 10.1039/C7NR02249B
Citation: Nanoscale, 2017, Accepted Manuscript
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    Multi-dielectric-layered triboelectric nanogenerator as energized by the corona discharging

    J. J. Shao, W. Tang, T. Jiang, X. Chen, L. Xu, B. D. Chen, T. Zhou, C. R. Deng and Z. L. Wang, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR02249B

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