1. Friedrich-Alexander University Erlangen-Nürnberg; Department of Chemistry and Pharmacy; Egerlandstrasse 1 91058 Erlangen Germany
2. Saint-Petersburg State University; Center for Optical and Laser Materials Research; Uljanovskaya 5 198504 St. Petersburg Russia
3. Saint-Petersburg State University; Interdisciplinary Resource Center for Nanotechnology; Uljanovskaya 1 198504 St. Petersburg Russia
4. Saint-Petersburg State University; Institute of Chemistry; Universitetskii pr. 26 198504 St. Petersburg Russia