Issue 21, 2022

An ultraweak mechanical stimuli actuated single electrode triboelectric nanogenerator with high energy conversion efficiency

Abstract

Triboelectric nanogenerator (TENG) as a new energy harvester has attracted significant attention due to its excellent output performance and high energy conversion efficiency at low-frequency, small-amplitude and weak-force compared with a traditional electromagnetic generator. Here, an ultraweak mechanical stimuli actuated single electrode triboelectric nanogenerator (UMA-TENG) has been studied with an atomic force microscope. The electrical output and force curve of UMA-TENG were studied at first, as well as the maximum output performance and highest energy conversion efficiency. Then the influence of the driving frequency, separation distance and motion amplitude was investigated, respectively. Moreover, by introducing an external switch to reach a cycle of maximized energy output, the maximum energy conversion efficiency of the UMA-TENG was up to 73.6% with an input mechanical energy of 48 pJ. This work demonstrates that the TENG shows excellent performance in ultraweak mechanical stimuli and could broaden the applications of the TENG in sensors, actuators, micro-robotics, micro-electro-mechanical-systems, and wearable electronics.

Graphical abstract: An ultraweak mechanical stimuli actuated single electrode triboelectric nanogenerator with high energy conversion efficiency

Supplementary files

Article information

Article type
Paper
Submitted
20 Mar 2022
Accepted
04 May 2022
First published
05 May 2022

Nanoscale, 2022,14, 7906-7912

An ultraweak mechanical stimuli actuated single electrode triboelectric nanogenerator with high energy conversion efficiency

Y. Lv, T. Bu, H. Zhou, G. Liu, Y. Chen, Z. Wang, X. Fu, Y. Lin, J. Cao and C. Zhang, Nanoscale, 2022, 14, 7906 DOI: 10.1039/D2NR01530G

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