1. School of Physics, South China University of Technology, Guangzhou 510006, People’s Republic of China
2. Laboratory of Optoelectronic Materials & Detection Technology, Guangxi Key Laboratory for the Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning 530004, People’s Republic of China
3. School of Electronic Science and Engineering, Southeast University, Nanjing 210096, People’s Republic of China
4. Southern Polytechnic College of Engineering and Engineering Technology, Kennesaw State University, Kennesaw, Georgia 30144
5. Science Exploring Lab, Arbour Glenn Drive, Lawrenceville, Georgia 30043