The research group is specialized in the synthesis, modification and characterization of functional, nano-scaled materials, with a strong focus on their optical and electronic properties. This includes the use of semiconductor nanowires as small and active laser devices, metasurfaces for flat optics, as well as poly-crystalline CIGS thin film materials for photovoltaics. Commonly, ion beam based techniques, e.g. such as ion implantation, are used within the group in order to induce an added or optimized functionality to the different material classes. Thus, the group runs several large scale-facilities and has a high expertise in ion-nanostructure-interactions.