5 research outputs found
Growth and characterization of thin ZnO films deposited on glass substrates by electrodeposition technique
Electrodeposition technique was used in order to produce nanometric zinc oxide films on glass insulating substrates. The effect of electrolyte concentration and applied current density on the formation and growth of electrodeposited Zn thin films in aqueous solutions of ZnSO4 were studied. After a thermal oxidation, a characterization of the structural morphology of the films deposited was carried out by optical microscopy (OM), atomic force microscopy (AFM), scanning electron microscopy (SEM) and by grazing incidence X-rays diffraction (GIXD). These characterization techniques show that the grains size of the films after oxidation at temperature 450 °C is between 5 and 15 nm, as well as the structure is polycrystalline nature with several orientations. UV/vis spectrophotometry confirms that it is possible to obtain transparent good ZnO films with an average transmittance of approximately 80% within the visible wavelength region, as well as the optical gap of obtained ZnO films is 3.17 eV
Tipi ideali e societ\ue0
Il volume interpreta i mutamenti dell'attuale momento storico, verificando la successione dei tre tipi ideali weberiani. Il volume \ue8 costruito su due parti. Nella prima il tipo ideale e Weber vengono collocati nel contesto delle scienzs sociali. La seconda parte raccoglie una serie di saggi nei quali si esplorano le possibilit\ue0 euristiche del tipo ideale nella interpretazione di grandi fasci di fenomeni sociali
Social actors and designing the civil society of Eastern Europe
Il volume oubblica le prospettive sui progetti per la societ\ue0 civile nei paesi gi\ue0 socialisti reali. Esso \ue8 diviso in due parti La prima parte analizza il passaggio da "controsistema" a societ\ue0 civile di individui, networks sociali, e movimenti. La seconda parte approfondisce il ruolo degli attori sociali nel progettare una societ\ue0 civil