1. Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St. Andrews, St. Andrews, Fife, KY16 9ST (UK), Fax: (+44) 1334‐463808 URL:http://www.zysman‐colman.com
2. EaStCHEM School of Chemistry, University of Edinburgh, King's Buildings, Edinburgh EH93FJ (UK)
3. Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St. Andrews, St. Andrews, Fife, KY16 9SS (UK)
4. Current address: Optoelectronics Laboratory, Department of Physics, North Maharashtra University, Jalgaon‐425001 (India)