1. Energy Research Institute @NTU (ERI@N); Research Techno Plaza; X-Frontier Block, Level 5, 50 Nanyang Drive Singapore 637553 Singapore
2. Interdisciplinary Graduate School; Nanyang Technological University; Singapore 639798 Singapore
3. Division of Physics and Applied Physics; School of Physical and Mathematical Sciences; Nanyang Technological University (NTU); 21 Nanyang Link Singapore 637371 Singapore
4. School of Materials Science and Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798 Singapore
5. Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore