1. Organic
Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, KY16 9SS, U.K.
2. Photonics Micro
and Nanostructures Laboratory, Fusion and Nuclear Security Department,
ENEA, Via E. Fermi 45, 00044 Frascati, Rome, Italy
3. CNR IMM Bologna
Section, Via Gobetti 101, 40129 Bologna, BO, Italy
4. Department
of Industrial Chemistry, University of Bologna, 40136 Bologna, Italy
5. Materials and
Chemico-Physical Processes Laboratory, Sustainable Territorial and
Production Systems Department ENEA, C. R. Casaccia, Via Anguillarese 301, 00123 Roma, Italy
6. Institut für Polymertechnologie Bergische Universität Wuppertal, Gauss-Strasse 20, 42097 Wuppertal, Germany