1. Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
2. Thomas Young Centre, University College London, Gower Street, London WC1E 6BT, U.K.
3. Department of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
4. Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, U.K.
5. School of Engineering, London South Bank University, London SE1 0AA, U.K.
6. Department of Materials Science and Engineering, Norwegian University of Science and Technology (NTNU), Trondheim 7491, Norway