1. College of Engineering Science and Environment The University of Newcastle Callaghan NSW 2308 Australia
2. Centre for Clean Energy and Nano Convergence Hindustan Institute of Technology and Science Chennai 603103 India
3. School of Materials Science and Engineering UNSW Sydney Sydney NSW 2052 Australia
4. Electron Microscope Unit Mark Wainwright Analytical Centre UNSW Sydney Sydney NSW 2052 Australia
5. Singapore Synchrotron Light Source National University of Singapore Singapore 117603 Singapore
6. Department of Physics National University of Singapore Singapore 117542 Singapore
7. Centre for Advanced Materials and Industrial Chemistry (CAMIC) School of Science Royal Melbourne Institute of Technology (RMIT) University Melbourne VIC 3001 Australia