1. School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia
2. Nuclear Magnetic Resonance Facility, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, New South Wales 2052, Australia
3. Electron Microscope Unit, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, New South Wales 2052, Australia
4. School of Photovoltaic and Renewable Energy Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia