1. Chinese Academy of Sciences (CAS) Center for Excellence in Nanoscience CAS Key Laboratory for Nanosystem and Hierarchical Fabrication National Center for Nanoscience and Technology Beijing 100190 China
2. Laboratory of Theoretical and Computational Nanoscience CAS Key Laboratory of Nanophotonic Materials and Devices National Center for Nanoscience and Technology Beijing 100190 China
3. University of CAS Beijing 100049 China