1. Department of Chemistry and Centre for Advanced 2D Materials (CA2DM); National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
2. NUS Graduate School for Integrative Sciences and Engineering; National University of Singapore; Centre for Life Sciences; #05-01, 28 Medical Drive Singapore 117456 Singapore
3. Institute of Chemical and Engineering Sciences; Agency for Science, Technology and Research (A*STAR); 1 Pesek Road, Jurong Island, Singapore 627833 Singapore
4. Key Laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology; Wuhan 430074 P. R. China
5. Department of Materials Science and Engineering; National University of Singapore; Singapore 117575 Singapore