1. Key Laboratory for Photochemistry Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
2. School of Chemical Sciences University of Chinese Academy of Sciences Beijing 100049 China
3. Department of Chemical and Biomolecular Engineering National University of Singapore Singapore 117585 Singapore
4. Key Laboratory for Renewable Energy Chinese Academy of Sciences Beijing Key Laboratory for New Energy Materials and Devices Institute of Physics Chinese Academy of Sciences Beijing 100190 China