1. Centre for Sustainable Materials Research and Technology SMaRT@UNSW School of Materials Science and Engineering UNSW Sydney Sydney NSW 2052 Australia
2. School of Chemistry and Physics Queensland University of Technology (QUT) Brisbane QLD 4001 Australia
3. Electron Microscopy Unit (EMU) Mark Wainwright Analytical Centre UNSW Sydney Sydney NSW 2052 Australia
4. Departament de Física Universitat Politècnica de Catalunya Campus Nord B4‐B5 Barcelona E‐08034 Spain