1. Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore, 117543, Singapore
2. Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), #08-03, 2 Fusionopolis Way, Innovis, Singapore, 138634, Singapore
3. Department of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Ave, Block N4.1, Singapore, 639798, Singapore
4. Singapore-MIT Alliance for Research and Technology, 1 Create Way, #10-01 & #09-03 CREATE Tower, Singapore, 138602, Singapore
5. Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
6. 2D Materials Pte Ltd (2DM), Singapore