1. Departamento de
Física, Universidade Federal de Santa Catarina−UFSC, 88040-900 Florianópolis, Santa Catarina, Brazil
2. Department
of Electronic Materials, Institute of Materials Science, Technical University of Darmstadt, Petersenstrasse 23, D-64287 Darmstadt, Germany
3. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
4. Instituto de Física de São Carlos, Universidade de São Paulo, PoB.:369, 13560-970 São Carlos/SP, Brazil
5. Centre de Recherche Paul Pascal, Université de Bordeaux & CNRS, 115 Avenue Schweitzer, 33600 Pessac, France
6. Department of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland