1. School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798
2. CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, Singapore 637553
3. School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459
4. Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117551
5. Nano Center Indonesia, Jalan Raya PUSPIPTEK, South Tangerang, Banten 15314, Indonesia
6. Centre for Micro-/Nano-electronics (NOVITAS), School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798
7. Cambridge Centre for Advanced Research and Education in Singapore, CREATE Tower, 1 Create Way, Singapore 138602
8. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
9. Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, Singapore 117546