1. Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, China
2. CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
3. School of Computer Science and Engineering, Beijing Technology and Business University, Beijing 100048, China
4. Laboratory of Theoretical and Computational Nanoscience, CAS Key Laboratory of Nanophotonic Materials and Devices, CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Ambient Particles Health Effects and Prevention Techniques, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100190, China
5. Center of Material Science and Optoelectonics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China