1. School of Materials
Science
and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
2. NUS Nanoscience and Nanotechnology
Initiative, National University of Singapore, Singapore 117576
3. Energy
Research Institute @ NTU
(ERI@N), Nanyang Technological University, Research Techno Plaza, 50 Nanyang Drive, Singapore 637553, Singapore
4. Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore 117576