1. MacDiarmid Institute for Advanced Materials and Nanotechnology, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
2. MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Physics and Astronomy, University of Canterbury, Christchurch, New Zealand
3. Industrial Research Ltd., P.O. Box 31-310, Lower Hutt, New Zealand
4. Quest Reliability Ltd., P.O. Box 38-096, Lower Hutt, New Zealand