1. Siyuan Laboratory, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University, Guangzhou, 510632 People’s Republic of China.
2. Department of Materials Science and Engineering, Jinan University, Guangzhou 510632, People’s Republic of China.
3. College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha, 410114 People’s Republic of China
4. Department of Physics, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan