In order to understand the resulting optical properties of a hybrid material and, above all, to adjust them in a targeted manner, the nature of the interaction between the individual components must be understood. By combining various analytical methods (ssNMR, total X-ray scattering coupled to PDF, IR and UV/Vis spectroscopy) with modelling, photoactive hybrid systems are to be fully characterised and the structure-property relationships structurally derived. The characterisation work flow established in this way can then be transferred to other (partially) amorphous systems.