1. Beijing Advanced Innovation Center for Materials Genome Engineering Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and Devices Institute of Physics Chinese Academy of Sciences Beijing 100190 China
2. Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
3. Department of Nuclear Science and Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
4. Shandong University of Science and Technology Shandong College of Chemical and Biological Engineering Qingdao 266590 China
5. Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
6. Yangtze River Delta Physics Research Center Co. Ltd Liyang 213300 China