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Information × Registration Number 0216U005644, 0115U005037 , R & D reports Title The investigations of nanostructures based semiconductor multi-metal chalcogenides as materials of new generation photovoltaic and fluorescent biomarkers popup.stage_title Head Valakh Mykhailo Yakovych, Доктор фізико-математичних наук Registration Date 16-03-2016 Organization Institute of Semiconductor Physics of National Academy of Sciences of Ukrain popup.description2 Theoretical and experimental comparative study lattice dynamics kesterite vyurt-stanite and modifications of single crystals Cu2ZnGeS4. Established a good correlation between the calculated density of states functions by long-wave frequencies of phonons with experimental values obtained research Raman spectroscopy (Raman). It was proved for this class of compounds anharmonic resonant interaction and one-phonon excitations two phonons which affects the frequency of the most intense in the spectrum of fully symmetric excitations. The possibility of diagnosis of Raman spectra effect substantial structural disordering cationic sublattice kesterite. Product Description popup.authors Бабічук І.С. В.О. Юхимчук Ворона І.П. Джаган В.М. Романюк Ю.А. Чорна Л.Б. Яремко А.М. popup.nrat_date 2020-04-02 Close