The Influence of Discontinuity-Induced Fringing Effect on the Output Performance of Contact-Separation Mode Triboelectric Nanogenerators

Experiment and Modeling Studies

authored by: Teresa Cheng, Han Hu, Navid Valizadeh, Liu Qiong, Florian Bittner, Ling Yang, Timon Rabczuk, Xiaoning Jiang, Xiaoying Zhuang
Abstract: Triboelectric nanogenerators (TENGs) are promising self-powering supplies for various intelligent sensing and monitoring devices, especially because they can harvest electric energy from low frequency and small-scale mechanical motions. Despite the fact that contact-separation mode TENGs with smaller contact areas harvest higher electrical outputs due to fringing effect, the impact of fringing effect on TENGs’ electrical outputs is rarely investigated quantitatively. Herein, in this study, the influence of fringing effect on the electrical outputs of contact-separation mode TENGs by introducing discontinuity on the tribo-negative side manually is investigated. In the results, it is revealed that the TENGs with more discontinuities show higher overall electric performance. Compared to pristine TENGs, the TENGs with discontinuity increased significantly, improving the surface charge by 50% and the power density by 114% when cross discontinuities are applied. However, one should generate discontinuities on tribo-negative side of TENGs using ceramic blade instead of metal blade within a positive-ion atmosphere due to the neutralization through the electrically conductive metal blade. The computational simulation validates that the TENGs with discontinuities obtain higher electrical outputs, and further investigates the effect of discontinuity gap size and array distance on TENGs performance. In this study, a promising method is provided for the future design of TENGs using discontinuous structures.
Organisation(s): Institute of Photonics
Laboratory of Nano and Quantum Engineering
Institute of Plastics and Circular Economy
External Organisation(s): Bauhaus-Universität Weimar
North Carolina State University
Tongji University
Type: Article
Journal: Advanced Energy and Sustainability Research
Volume: 5
Publication date: 06.10.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Energy Engineering and Power Technology, Ecology, Waste Management and Disposal, Environmental Science (miscellaneous)
Electronic version(s): https://doi.org/10.1002/aesr.202400002 (Access: Open)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{3b888e9284bf4398a3d097421fdc9255,
title = "The Influence of Discontinuity-Induced Fringing Effect on the Output Performance of Contact-Separation Mode Triboelectric Nanogenerators: Experiment and Modeling Studies",
abstract = "Triboelectric nanogenerators (TENGs) are promising self-powering supplies for various intelligent sensing and monitoring devices, especially because they can harvest electric energy from low frequency and small-scale mechanical motions. Despite the fact that contact-separation mode TENGs with smaller contact areas harvest higher electrical outputs due to fringing effect, the impact of fringing effect on TENGs{\textquoteright} electrical outputs is rarely investigated quantitatively. Herein, in this study, the influence of fringing effect on the electrical outputs of contact-separation mode TENGs by introducing discontinuity on the tribo-negative side manually is investigated. In the results, it is revealed that the TENGs with more discontinuities show higher overall electric performance. Compared to pristine TENGs, the TENGs with discontinuity increased significantly, improving the surface charge by 50% and the power density by 114% when cross discontinuities are applied. However, one should generate discontinuities on tribo-negative side of TENGs using ceramic blade instead of metal blade within a positive-ion atmosphere due to the neutralization through the electrically conductive metal blade. The computational simulation validates that the TENGs with discontinuities obtain higher electrical outputs, and further investigates the effect of discontinuity gap size and array distance on TENGs performance. In this study, a promising method is provided for the future design of TENGs using discontinuous structures.",
keywords = "computational simulations, discontinuities, edge effects, fringing effects, triboelectric nanogenerators",
author = "Teresa Cheng and Han Hu and Navid Valizadeh and Liu Qiong and Florian Bittner and Ling Yang and Timon Rabczuk and Xiaoning Jiang and Xiaoying Zhuang",
note = "Publisher Copyright: {\textcopyright} 2024 The Authors. Advanced Energy and Sustainability Research published by Wiley-VCH GmbH.",
year = "2024",
month = oct,
day = "6",
doi = "10.1002/aesr.202400002",
language = "English",
volume = "5",
journal = "Advanced Energy and Sustainability Research",
issn = "2699-9412",
publisher = "Wiley-VCH Verlag",
number = "10",
}

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