DV is member of the Steering Committee of the European Theoretical Spectroscopy Facility, and WP leader for training activities of the European Center of Excellence MaX (Materials at Exascale), and chair of the PsiK working group on Training and Education. He is an expert in the most modern theories and computational tools of ab initio electronic structure calculations (density functional theory, TDDFT and many-body perturbation theory methods). Current research focuses on atomistic modeling of photoactive biomolecules, nanostructures (graphene, nanotubes), photovoltaic and photocatalytic materials with particular interest on excited states properties and exciton instabilities.