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. 2022 Jun 9;13:3325. doi: 10.1038/s41467-022-31042-8

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — a A photo of the experiment. b Comparison between the original TENG short-circuit current and received current signals in water. c Comparison between the original short-circuit current of the TENG and received signals under different water volume. d Schematic diagram of the electrode. e Comparison of the current signals received in water with different transmitting and receiving electrodes. Tr, Re, and Pl represents transmitting electrode, receiving electrode, and electrode plate respectively. f Comparison of the peak values of the received current signals with different receiving electrodes. Simulation diagram of the distribution of polarization electric field (g) without and (h) with the receiving electrode. Color represents polarization intensity. i Variation of polarization electric field and charges on the receiving electrode with the distance between the two electrodes.