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Nano Research

Article Title

Flow-induced voltage generation in graphene network

Authors

Junchao Lao, Institute for Advanced Study, Nanchang University, Nanchang 330031, China Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China
Yijia He, Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
Xiao Li, School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
Fuzhang Wu, Institute for Advanced Study, Nanchang University, Nanchang 330031, China Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China
Tingting Yang, Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
Miao Zhu, Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
Yangyang Zhang, School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
Pengzhan Sun, School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
Zhen Zhen, Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China
Baochang Cheng, Institute for Advanced Study, Nanchang University, Nanchang 330031, China
Hongwei Zhu, Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Tsinghua University, Beijing 100084, China

Keywords

graphene, flow, ionic solution, flexible, energy-harvesting

Abstract

We report a voltage generator based on a graphene network (GN). In response to the movement of a droplet of ionic solution over a GN strip, a voltage of several hundred millivolts is observed under ambient conditions. In the voltage-generation process, the unique structure of GN plays an important role in improving the rate of electron transfer. Given their excellent mechanical properties, GNs may find applications for harvesting vibrational energy in various places such as raincoats, umbrellas, windows, and other surfaces that are exposed to rain.

Graphical Abstract

Publisher

Tsinghua University Press

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