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Article

A Highly Efficient and Durable Kirigami Triboelectric Nanogenerator for Rotational Energy Harvesting

Department of Physics, Inha University, Incheon 22212, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Abdessattar Abdelkefi
Energies 2021, 14(4), 1120; https://doi.org/10.3390/en14041120
Received: 29 January 2021 / Revised: 16 February 2021 / Accepted: 17 February 2021 / Published: 20 February 2021
(This article belongs to the Special Issue Advanced Triboelectric and Piezoelectric Nanogenerator)
While sliding-mode triboelectric nanogenerators (S-TENGs) have been considered as one of the most promising devices for rotational energy harvesting, their inherently poor durability has been a serious bottleneck for applications. Herein, we report a three-dimensional kirigami TENG as a highly efficient and durable rotational energy harvesting device. The kirigami TENG consisted of cube-shaped paper, aluminum (Al) foil electrode and polytetrafluoroethylene (PTFE) polymer film, and converted rotational motion into multiple folding-unfolding vibrations. The rotation-folding (R-F) kirigami TENG generated an open-circuit voltage of 31 V, a short-circuit current of 0.67 μA and an instantaneous power (power density) of 1.2 μW (0.13 μW/cm2) at 200 rpm, which was sufficient to turn on 25 light-emitting diodes and a thermo-hygrometer. The triboelectric outputs of the R-F kirigami TENG were only slightly decreased even after 288,000 continuous rotations, i.e., the output remained at 86% of its initial value. This work demonstrates that an R-F kirigami TENG could be a plausible candidate to efficiently harvest various forms of rotational energy with a long-term durability. View Full-Text
Keywords: triboelectric nanogenerator; kirigami; rotational energy; durability; efficiency triboelectric nanogenerator; kirigami; rotational energy; durability; efficiency
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MDPI and ACS Style

Kong, D.S.; Han, J.Y.; Ko, Y.J.; Park, S.H.; Lee, M.; Jung, J.H. A Highly Efficient and Durable Kirigami Triboelectric Nanogenerator for Rotational Energy Harvesting. Energies 2021, 14, 1120. https://doi.org/10.3390/en14041120

AMA Style

Kong DS, Han JY, Ko YJ, Park SH, Lee M, Jung JH. A Highly Efficient and Durable Kirigami Triboelectric Nanogenerator for Rotational Energy Harvesting. Energies. 2021; 14(4):1120. https://doi.org/10.3390/en14041120

Chicago/Turabian Style

Kong, Dae Sol, Jae Yeon Han, Young Joon Ko, Sang Hyeok Park, Minbaek Lee, and Jong Hoon Jung. 2021. "A Highly Efficient and Durable Kirigami Triboelectric Nanogenerator for Rotational Energy Harvesting" Energies 14, no. 4: 1120. https://doi.org/10.3390/en14041120

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