1. Department of Electrical and Computer EngineeringNational University of Singapore 4 Engineering Drive 3 Singapore 117583 Singapore
2. Centre for Advanced 2D MaterialsNational University of Singapore 6 Science Drive 2 Singapore 117543 Singapore
3. Institute of Materials Research and EngineeringA*STAR 2 Fusionopolis Way Singapore 138634 Singapore
4. Institute of High Performance ComputingA*STAR 1 Fusionopolis Way Singapore 138632 Singapore
5. Department of Materials Science and EngineeringNational University of Singapore 9 Engineering Drive 1 Singapore 117583 Singapore
6. College of Materials Science and EngineeringShenzhen University 3688 Nanhai Ave Shenzhen 518060 P. R. China