1. A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center; Russian Academy of Sciences; 8, Akad. Arbuzov Str. Kazan 420088 Russia
2. Department of Physics; Kazan National Research Technological University; 68, K. Marx str. Kazan 420015 Russia
3. Department of Nanotechnologies in Electronics; Kazan National Technical Research University; 10, K. Marx str. Kazan 420111 Russia