Abstract
The paper is the study of electric resistance of a graphene layer washed by a liquid with different flow rate parameters. Experiments demonstrate that if the fabricated composite (graphene upon a PET/EVA polymeric substrate) is submerged into distilled water, the sample resistance increases by 120 %. Meanwhile, the flow of liquid near the graphene layer decreases this gain in the electric conductivity. The effect offers a general design of a flow rate sensor based on the graphene layer taken as a flow-sensitive matrix. The study demonstrates that this design of graphene flow sensor (tested for distilled water) exhibits a linear dependency of the sensor resistance on the flow rate.
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Research was supported by the Russian Science Foundation grant (Project code 22-29-20225).
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Sorokin, D.V., Shatilov, D.A., Andryushchenko, V.A. et al. Water motion near graphene and its electric conductivity. Thermophys. Aeromech. 29, 899–904 (2022). https://doi.org/10.1134/S0869864322060099
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DOI: https://doi.org/10.1134/S0869864322060099