1. Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surface, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
2. Department of Physics, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Key Laboratory of Low Dimensional Condensed Matter Physics (Department of Education of Fujian Province), and Jiujiang Research Institute, Xiamen University, Xiamen 361005, China
3. Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
4. Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen 361021, China
5. Department of Materials Chemistry, School of Chemical Engineering of Materials Science, Quanzhou Normal University, Quanzhou 362000, China
6. College of Mechanical and Energy Engineering, Jimei University, Xiamen 361021, China
7. Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
8. School of Energy, Xiamen University, Xiamen 361005, China