The electroluminescence is an optical and electrical phenomenon where a material emits visible light in response to an electric current passed through it. For this process, migration of holes and electrons from the anode and cathode respectively into the cell is necessary. The light emission comes from the relaxation of the excited states formed by the recombination of electrons and holes in the light emitting layer. In order to achieve high electroluminescent efficiencies, some other films that improve the charge transport from the external electrodes to the emissive layer are often added. Deriving from the previous comments, in the present thesis we have developed electroluminescent supramolecular host-guest based devices, where the luminophore was encapsulated inside the micropores of zeolites. In these new OLED devices, the electroluminescent material was stabilized versus external agents that cause degradation of the luminophore and the charge transport through the emissive layer was improved. In particular, the efficiency of OLED devices based on rutenium tris-bipiridil and polyphenylenevinylen encapsulated inside faujasite zeolites has been studied. A previous step in the zeolite based electroluminescent devices development was the study of the electrical conduction mechanism within supramolecular systems. For that reason, a series of zeolite films, differing on the charge balancing cation and crystalline structure, were prepared. The electrical conductivity of these samples, applying different constant voltages, was measured. Under specific conditions, some zeolitic layers acted as a semiconductor, depending on the breaking voltage, the charge balancing cation and the crystalline structure. Moreover, the incorporation of luminophore compounds in inorganic rigid matrix in order to increase their stability and processability has been made. Specifically, a PMO material that contained highly photoluminescent 9,10-diphenylanthracene units has been developed. In this work, the improvement of the electroluminescent efficiency depending on the porosity and the periodic framework and the displacement of the light emitted spectrum towards the blue region when using a structure directing agent have been demonstrated. Finally, in the present study the functionalization of luminophore materials with ionofilic units has been developed as an alternative strategy to improve the efficiency of several electroluminescent materials. In this context, the covalent introduction of imidazolium groups in the luminophore structure has been described. Thus, the charge transport from external electrodes into the active layer has been favored, improving the electroluminescent efficiency of the ionofilic based materials. The results obtained in the present thesis describe a novel application of supramolecular systems within the synthesis of electroluminescent materials, undergoing the development of new and improved OLED devices.