Alexander Bagaturyants received his Ph.D. in Physical Chemistry from the Institute of Organoelement Chemistry of USSR Academy of Sciences in 1968, and his Dr. Sci. in Physical Chemistry from the Institute of Chemical Physics of USSR Academy of Sciences in 1988. He joined Photochemistry Center of Russian Academy of Sciences from its foundation in 1998, and since then and currently he is head of laboratory of quantum chemistry and molecular simulations. Since 2009, he holds the position of a professor at the Department of Condensed Matter Physics of the National Research Nuclear University “MEPhI”. His main research interests deal with first-principles DFT calculations of clusters, thin films, semiconductor surfaces, defects, and impurities; molecular simulations of molecular assemblies, supramolecular systems; and molecular aggregates; ab initio calculations of electronic spectra of organic molecules and metal organic complexes, molecular aggregates, and supramolecular systems using wave function and DFT methods; multiscale atomistic (molecular dynamics and quantum chemistry) simulations of organic and inorganic nanostructured materials for applications in sensing, light-emitting and photovoltaic devices.