1. Institute
of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis #08-03, Republic of Singapore 138634
2. Institute
of Chemical and Engineering Science (ICES), A*STAR (Agency for Science, Technology and Research), 1 Pesek Road, Jurong
Island, Republic of Singapore 627833
3. Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, People’s Republic of China
4. Center
for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Republic of Singapore 639798