1. Graphene Composite Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, 518060, P. R. China
2. College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
3. Shenzhen Eigen-Equation Graphene Technology Co. Ltd, Shenzhen, 518060, P. R. China