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. 2021 Aug 17;12:4998. doi: 10.1038/s41467-021-25318-8

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© The Author(s) 2021

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Fig. 1 — a Schematic illustrating the device structure. In-plane voltage signal across two terminals of a silicon strip in water was recorded while scanning a light beam. b Velocity profile of a light beam moving on a p-type Si strip (bottom, black) and the corresponding voltage signal (top, red).