1. Center of Single-Molecule Sciences Institute of Modern Optics Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology Frontiers Science Center for New Organic Matter College of Electronic Information and Optical Engineering Nankai University 38 Tongyan Road, Jinnan District Tianjin 300350 P. R. China
2. Beijing National Laboratory for Molecular Sciences National Biomedical Imaging Center College of Chemistry and Molecular Engineering Peking University 292 Chengfu Road, Haidian District Beijing 100871 P. R. China
3. School of Physics Institute for Quantum Science and Engineering and Wuhan National High Magnetic Field Center Huazhong University of Science and Technology Wuhan 430074 P. R. China
4. Stoddart Institute of Molecular Science Department of Chemistry Zhejiang University Hangzhou 310021 P. R. China
5. ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311215 P. R. China