1. Department of Chemical Engineering and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Canterbury, Christchurch8041, New Zealand
2. Department of Chemistry and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Otago, Dunedin9054, New Zealand
3. Australian Synchrotron, Clayton, Victoria3168, Australia
4. School of Physical and Chemical Sciences and MacDiarmid Institute for Advanced Materials and Nanotechnology, University of Canterbury, Christchurch8041, New Zealand