Dmytrenko O. Structure and optical properties of the fullerene films during the doping and irradiation.

The crystal structure, electronic and vibrational spectra of the condensed C60 films, alloyed by the oxygen molecules and copper atoms are investigated in this work. The influence of radiation damages during the high-energy irradiation by gamma-photons on the adsorption ability of carbon fibers and by electrons (Ee = 1,8 MeV) on the crystal structure, Raman scattering, photoluminescence and optical conductivity of the C60, Сu-С60 and C70 films is studied. The first-principle calculation of the density of electronic states, free energy, the transfer of charges, optical conductivity for the C60 film and some of its compounds with the atoms of oxygen and copper is carried out using the method of the cluster expansion of the Green functions and theory of multiple scattering. It is shown that with the alloying of the fullerene films by the oxygen molecules, copper atoms or carbon ones, obtained with the radiation damages of the fullerene C60 shells, the change in the optical properties takes place because of the ionization of the intercalated impurities and fullerenes. The ionization of atoms and molecules is responsible for the appearance of extra forces of Coulomb intermolecular interaction.