1. Stephenson Institute for Renewable Energy, Department of Physics, Liverpool L69 7ZF, United Kingdom
2. Department of Chemistry, University College London, Christopher Ingold Building, London WC1H 0AJ, United Kingdom
3. Thomas Young Centre, University College London, Gower Street, London WC1E 6BT, United Kingdom
4. Department of Electronic Systems, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
5. Institute of Experimental Physics, Wroclaw University of Technology, 50-370 Wroclaw, Poland
6. National Renewable Energy Laboratory, Material Science Center, Denver West Parkway, Golden, Colorado 80401, USA
7. Department of Electrical Engineering and Electronics, University of Liverpool, Brownlow Hill, Liverpool L69 3GJ, United Kingdom
8. Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom