1. Department of Chemistry, National Tsing Hua University, Hsinchu 300044, Taiwan
2. National Synchrotron Radiation Research Center, Hsinchu 300092, Taiwan
3. Department of Chemistry and Centre for Emerging Materials and Advanced Devices, National Taiwan University, Taipei 106319, Taiwan
4. Faculty of Physics, Vilnius University, Sauletekio 3, LT-10257 Vilnius, Lithuania
5. Department of Chemical Engineering, National Tsing Hua University, Hsinchu 300044, Taiwan
6. College of Semiconductor Research, National Tsing Hua University, Hsinchu, 300044, Taiwan
7. Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300044, Taiwan