1. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
2. Institute for New Energy Materials and Low-Carbon Technologies and Tianjin Key Lab of Photoelectric Materials and Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
3. School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
4. Department of Physics and Astronomy, University of California, Irvine, California 92697, United States
5. Department of Physics, Tamkang University, New Taipei City 25137, Taiwan
6. Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario M5S 1A4, Canada
7. National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
8. School of Metallurgy and Environment, Central South University, Changsha 410083, China