1. Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634
2. Institute of High Performance Computing, Electronics and Photonics Department, 1 Fusionopolis Way, Connexis North, #16-16, Singapore 138632
3. Department of Chemistry, National University of Singapore, Block S8, Level 3, 3 Science Drive 3, Singapore 117543