1. Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
2. Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
3. Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
4. National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
5. Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
6. Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
7. Department of Materials Science and Engineering, Department of Chemistry, and Center of Super-Diamond and Advanced Films, City University of Hong Kong, Kowloon 999077, Hong Kong SAR