Institution: | aInstitute of Electron Physics of National Acad. Sci. of Ukraine, Universytetska Str. 21, Uzhhorod 88017, Ukraine bInstitute of Semiconductors Physics of National Acad. Sci. of Ukraine, Nauky Av. 41, Kyiv 03028, Ukraine cInstitute of Physical Chemistry, National Acad. Sci. of Ukraine, Nauky Av. 31, Kyiv 03028, Ukraine |