1. B. I. Stepanov Institute of Physics of National Academy of Sciences, Pr. Nezavisimosti 68, Minsk 220072, Belarus
2. Molecular Design and Synthesis,
Department of Chemistry, KU Leuven, Celestijnenlaan
200F, B-3001 Leuven, Belgium
3. Institut für Chemie und
Biochemie−Organische Chemie, Freie Universität Berlin, Takustrasse 3, D-14195 Berlin, Germany
4. Design & Synthesis of Organic Semiconductors (DSOS), Institute for Materials Research (IMO-IMOMEC), Hasselt University, Universitaire Campus, Agoralaan 1, Building D, B-3590 Diepenbeek, Belgium
5. Molecular Imaging and Photonics,
Department of Chemistry, KU Leuven, Celestijnenlaan
200F, B-3001 Leuven, Belgium