PhD in mechanical engineering option mechanical of materials and surfaces, the subject of my thesis deals with the realization and characterization of functional thin films based on the Zn-Ag-Mg-O system. My work was carried out on the realization of ZnO-Ag, ZnO-Mg and ZnO-Ag-Mg thin films on glass and silicon substrates such as multifunctional layers; transparent, conductive and antibacterial layers.