Flexible Nanogenerators Based on Graphene Oxide Films for Acoustic Energy Harvesting
Ronghui Que,1 Qi Shao,1 Qinliang Li,1 Mingwang Shao,1,* Shiduan Cai,1 SuidongWang,1,* and Shuit-Tong Lee2,*
1Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, People’s Republic of China
2Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China
Graphene oxide films were fabricated as low-cost and flexible nanogenerators to convert acoustic energy into electricity with a conversion efficiency of 12.1?% (see picture). The generated current sensitively depended on the pH value of the suspensions for graphene oxide (GO) film production.