1. Department of Chemistry City University of Hong Kong Hong Kong 999077 P. R. China
2. Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hong Kong 999077 P. R. China
3. Department of Chemistry Tsinghua University Beijing 100084 P. R. China
4. Center of Super‐Diamond and Advanced Films (COSDAF) City University of Hong Kong Hong Kong 999077 P. R. China
5. Department of Chemistry The Chinese University of Hong Kong Hong Kong 999077 P. R. China
6. Institute of Materials Research and Shenzhen Geim Graphene Research Centre Tsinghua Shenzhen International Graduate School Tsinghua University Shenzhen 518055 P. R. China
7. Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM) City University of Hong Kong Hong Kong 999077 P. R. China
8. Department of Mechanical Engineering City University of Hong Kong Hong Kong 999077 P. R. China
9. Key Laboratory of Materials Physics Anhui Key Laboratory of Nanomaterials and Nanotechnology Institute of Solid State Physics Chinese Academy of Sciences Hefei 230031 P. R. China
10. Institute of Chemical and Engineering Sciences A*STAR Singapore 627833 Singapore
11. Shenzhen Research Institute City University of Hong Kong Shenzhen 518057 P. R. China