1. Department of Physics and Centre for Plastic Electronics; Blackett Laboratory; Imperial College London; London SW7 2AZ UK
2. Dutch Polymer Institute (DPI); P.O. Box 902 5600 AX Eindhoven The Netherlands
3. Institute of Electronic Structure and Laser (IESL); Foundation for Research and Technology-Hellas (FORTH); Heraklion 71003 Greece
4. Materials Science & Technology Department; University of Crete; Heraklion 71003 Greece
5. Institute of Chemical Engineering and High Temperature Processes (ICEHT); Foundation of Research and Technology Hellas (FORTH); Stadiou Strasse Platani; P.O. Box 1414 Patras GR-265 04 Greece
6. Center of Materials Technology and Photonics and Electrical Engineering Department; Technological Educational Institute (TEI) of Crete; Heraklion 71004 Greece
7. Physics Department; Aristotle University of Thessaloniki; Thessaloniki 54124 Greece
8. Cornell High Energy Synchrotron Source; Wilson Laboratory; Cornell University; Ithaca NY 14853 USA
9. Materials Science and Engineering; Division of Physical Sciences and Engineering; King Abdullah University of Science and Technology; Thuwal 23955-6900 Saudi Arabia
10. Department of Materials and Centre for Plastic Electronics; Imperial College London; London Royal School of Mines; London SW7 2AZ UK