1. School of Chemical & Physical Sciences and the MacDiarmid Institute of Advanced Materials & Nanotechnology, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
2. Industrial Research Ltd and the MacDiarmid Institute, P.O. Box 31 310, Lower Hutt, New Zealand
3. School of Arts and Science, Tunku Abdul Rahman College, P.O. Box 10979, 50932 Kuala Lumpur, Malaysia