1. Department of Materials Science & Engineering, Shenzhen Key Laboratory of Printed Organic Electronics, South University of Science & Technology of China, Shenzhen 518055, China
2. Research
Center for Advanced Materials and Biotechnology, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, China
3. Department
of Chemistry, Tsinghua University, Beijing 100084, China
4. State
Key Laboratory of Precision Spectroscopy, School of Physics and Materials
Science, East China Normal University, Shanghai 200062, China
5. Department
of Chemistry, Stanford University, Stanford, California 94305, United States
6. School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China