1. FORTH, Institute of Electronic Structure & Laser, Heraklion, Crete, Greece
2. Unité de Physique et Chimie des Hauts Polymères, Université catholique de Louvain, Louvain-la-Neuve, Belgium
3. University of Crete, Department of Materials Science & Technology, Heraklion, Crete, Greece
4. Silesian University, A.Chelkowski Institute of Physics, Katowice, Poland
5. Max-Planck Institut für Polymerforschung, Mainz, Germany
6. University of Athens, Department of Chemistry, Athens, Greece