Through the sol-gel process, a silicon-titanium inorganic-organic hybrid is synthesized and used as substrate to study the adsorption and spectroscopy of a europium. luminescent complex: Eu(fod)(3). The complex and silicon-titanium hybrid were mixed in stoichiometric amounts to produce samples with 1%, 5%, and 10% (m/m) of adsorbed complex, with the matrices being pressed at 380 mPa for 0.5, 30, and 60 min before spectroscopic analysis. It is verified that the intensity of the D-5(0) --> F-7(2) emission band is dependent on the complex/nitrogen ratio and almost independent of the external pressure.