1. Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
2. Science and Math Cluster, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
3. International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
4. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
5. Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore
6. NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, 13 Centre for Life Science, #05-01, 28 Medical Drive, Singapore 117456, Singapore