1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
2. University of Chinese Academy of Sciences, Beijing 100049, China
3. Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
4. School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
5. Beijing Advanced Innovation Center for Materials Genome Engineering, Key Laboratory for Renewable Energy, and Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
6. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China