1. Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Organic Solids, CAS Research/Education Center for Excellence in Molecular
Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
2. School
of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
3. Department
of Physics and Organic and Carbon Electronics Lab (ORaCEL), North Carolina State University, Raleigh, North Carolina 27695, United States
4. Department
of Energy Engineering, School of Energy and Chemical Engineering,
Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, South Korea
5. National
Laboratory of Solid State Microstructures, School of Physics, and
Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
6. Synergetic
Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
7. Laboratory
of Advanced Optoelectronic Materials, College of Chemistry, Chemical
Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China