1. NUS Graduate School for Integrative Sciences & Engineering (NGS) University Hall Tan Chin Tuan Wing 21 Lower Kent Ridge Singapore 119077 Singapore
2. Department of Physics National University of Singapore 2 Science Drive 3 Singapore 117551 Singapore
3. Institute of Materials Research & Engineering A*STAR (Agency for Science Technology and Research) 2 Fusionopolis Way, Innovis Singapore 138634 Singapore
4. Singapore Synchrotron Light Source (SSLS) National University of Singapore 5 Research Link Singapore 117603 Singapore
5. Department of Chemistry National University of Singapore 2 Science Drive 3 Singapore 117542 Singapore
6. Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Fuzhou 350207 China
7. Department of Applied Physics The Hong Kong Polytechnic University Hung Hom Hong Kong China