1. Department
of Chemistry, National Taiwan University, Taipei 106, Taiwan
2. Institute of Atomic
and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan
3. Nanoscience and
Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan
4. Division of Physical Science & Engineering, King Abdullah University of Science and Technology , Thuwal 23955-6900, Kingdom of Saudi Arabia
5. Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan
6. Department
of Applied Chemistry, National Chiao-Tung University, Hsinchu 300, Taiwan