National Academy of Sciences of Ukraine - L.V. Pysarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine - L.V. Pysarzhevskii Institute of Physical Chemistry, Taras Shevchenko National University of Kyiv, Chemnitz University of Technology (CUT) - Semiconductor Physics, Chemnitz University of Technology (CUT) - Semiconductor Physics, affiliation not provided to SSRN, affiliation not provided to SSRN and National Academy of Sciences of Ukraine - L.V. Pysarzhevskii Institute of Physical Chemistry