1. V. Lashkaryov Institute of Semiconductors Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
2. Physics Department, Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine
3. Department of Cell Biology and Biotechnology, Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, 04123 Kyiv, Ukraine
4. Department of Population Genetics, Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Osypovskogo str., 2a, Kyiv, 04123, Ukraine
5. Semiconductor Physics, Chemnitz University of Technology, 09107, Chemnitz, Germany
6. Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Chemnitz University of Technology, 09107, Chemnitz, Germany