Triboelectric micromotors actuated by ultralow frequency mechanical stimuli

Hang Yang, Yaokun Pang, Tianzhao Bu, Wenbo Liu, Jianjun Luo, Dongdong Jiang, Chi Zhang () and Zhong Lin Wang ()
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Hang Yang: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
Yaokun Pang: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
Tianzhao Bu: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
Wenbo Liu: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
Jianjun Luo: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
Dongdong Jiang: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
Chi Zhang: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
Zhong Lin Wang: Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences

Nature Communications, 2019, vol. 10, issue 1, 1-7

Abstract: Abstract A high-speed micromotor is usually actuated by a power source with high voltage and frequency. Here we report a triboelectric micromotor by coupling a micromotor and a triboelectric nanogenerator, in which the micromotor can be actuated by ultralow-frequency mechanical stimuli. The performances of the triboelectric micromotor are exhibited at various structural parameters of the micromotor, as well as at different mechanical stimuli of the triboelectric nanogenerator. With a sliding range of 50 mm at 0.1 Hz, the micromotor can start to rotate and reach over 1000 r min−1 at 0.8 Hz. The maximum operation efficiency of the triboelectric micromotor can reach 41%. Additionally, the micromotor is demonstrated in two scanning systems for information recognition. This work has realized a high-speed micromotor actuated by ultralow frequency mechanical stimuli without an external power supply, which has extended the application of triboelectric nanogenerator in micro/nano electromechanical systems, intelligent robots and autonomous driving.

Date: 2019
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DOI: 10.1038/s41467-019-10298-7

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