Research in the Stradomska group concentrates on modelling of the properties and dynamics of the excited states in molecular assemblies of various sizes. We are interested both in small model systems, build up from a few molecules, as well as in novel functional materials consisting of thousands of molecules. Our focus is on the coupling between intramolecular electronic excitations, charge-transfer states, molecular vibrations, and dynamic environment. We use variety of computational methods from quantum chemistry, molecular physics as well as solid state physics.