1. Division of Chemistry and Biological Chemistry, School of Physical and Mathematical SciencesNanyang Technological University, Singapore 21 Nanyang Link Singapore 637371 Singapore
2. Department of Chemical EngineeringIndian Institute of Science Bangalore 560012 India
3. Artificial Photosynthesis (Solar Fuels) LaboratoryNanyang Technological University, Singapore 50 Nanyang Avenue Singapore 639798 Singapore