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