1. Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 10617, Taiwan
2. International Graduate Program of Molecular Science and Technology, National Taiwan University, Taipei 10617, Taiwan
3. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
4. Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan
5. Department of Physics, National Central University, Taoyuan 32001, Taiwan
6. Department of Materials Science and Metallurgical Engineering, Indian Institute of Technology Bhilai, Durg, Chhattisgarh 491001, India
7. Materials Science Center, National Renewable Energy Laboratory (NREL), Golden , Colorado 80401, United States
8. Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, Berlin D-14109, Germany
9. Department of Physics, National Taiwan University, Taipei 10617, Taiwan
10. Center of Atomic Initiative for New Materials, National Taiwan University, Taipei 10617, Taiwan