1. International PhD Program for Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
2. Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
3. Aerosol Science Research Center, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
4. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
5. State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China