1. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)College of ChemistryNankai University Tianjin 300071 P. R. China
2. Renewable Energy Conversion and Storage Center (RECAST)Nankai University Tianjin 300071 P. R. China
3. College of ChemistryKey Laboratory of Theoretical & Computational Photochemistry of Ministry of EducationBeijing Normal University Beijing 100875 P. R. China
4. Key Laboratory of Weak-Light Nonlinear PhotonicsMinistry of EducationSchool of PhysicsNankai University Tianjin 300071 P. R. China