The conversion of water current to voltage generation through graphene has gained interest in both basic physics and applications such as sensors and electricity generation systems. However, many aspects of the mechanism remain unclear. Recently, quantum-based momentum transfer theories have been reported, but these often do not account for flow conditions. In this study, we investigated the correlation between the flow conditions of a liquid medium and the electrical conduction of graphene through experiments and numerical calculations. Our results suggest that the necessary condition is that the flow must be neither irregular nor purely laminar; instead, graphene responds to the transition process of the fluid. This finding supports the extension of current theories and presents valuable insights for both basic science and industrial applications.
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28 October 2024
Research Article|
October 29 2024
Investigating the correlation between flow dynamics and flow-induced voltage generation
Hikaru Takeda;
Hikaru Takeda
(Investigation, Writing – original draft)
1
Graduate School of Engineering, Tohoku University
, 6-6-05 Aramaki Aza Aoba, Sendai 980-8579, Japan
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Naoya Iwamoto;
Naoya Iwamoto
(Investigation, Software, Writing – original draft)
2
Institute of Fluid Science, Tohoku University
, 2-1-1 Katahira, Sendai 980-8579, Japan
3
Department of Mechanical Engineering, Tohoku University
, 6-6-01 Aramaki Aza Aoba, Sendai 980-8579, Japan
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Mitsuhiro Honda
;
Mitsuhiro Honda
(Investigation, Writing – review & editing)
4
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
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Masaki Tanemura
;
Masaki Tanemura
(Investigation, Writing – review & editing)
4
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
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Ichiro Yamashita
;
Ichiro Yamashita
(Investigation, Writing – review & editing)
5
Graduate School of Engineering, Osaka University
, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Atsuki Komiya
;
Atsuki Komiya
(Conceptualization, Investigation, Software, Supervision, Writing – review & editing)
2
Institute of Fluid Science, Tohoku University
, 2-1-1 Katahira, Sendai 980-8579, Japan
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Takeru Okada
Takeru Okada
a)
(Conceptualization, Funding acquisition, Investigation, Supervision, Writing – review & editing)
1
Graduate School of Engineering, Tohoku University
, 6-6-05 Aramaki Aza Aoba, Sendai 980-8579, Japan
a)Author to whom correspondence should be addressed: [email protected]
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a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 125, 184101 (2024)
Article history
Received:
July 22 2024
Accepted:
October 18 2024
Citation
Hikaru Takeda, Naoya Iwamoto, Mitsuhiro Honda, Masaki Tanemura, Ichiro Yamashita, Atsuki Komiya, Takeru Okada; Investigating the correlation between flow dynamics and flow-induced voltage generation. Appl. Phys. Lett. 28 October 2024; 125 (18): 184101. https://doi.org/10.1063/5.0230115
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