A high energy output nanogenerator based on reduced graphene oxide
Weiping Li1, Yupeng Zhang2, Liangliang Liu3
1School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan, Hubei 430072, China. cxpan@whu.edu.cn and Shenzhen Research Institute, Wuhan University, Shenzhen, Guangdong 518057, China.
Abstract:
In this paper, we report a novel graphene-based nanogenerator for high energy harvesting. Experimental and theoretical results revealed that the energy output mechanism is the joint action of the strain effect (band engineering) and the triboelectric effect of reduced graphene oxide. It was found that the current could be adjusted by experimental parameters, such as the electrolyte concentration and rotation rate. Furthermore, the voltage output could be amplified by series connection of the system. Compared with other nanogenerators, the present graphene-based nanogenerator provides advantages, such as simple assembly, flexibility and high structural stability. It is expected that this nanogenerator will be of potential application in active sensors and sustainable power sources.
