Magnesium-Doped Zinc Oxide Electrochemically Grown on Fluorine-Doped Tin Oxide Substrate

Abstract

Nanostructures of magnesium (Mg) doped Zinc oxide (ZnO) were successfully deposited on conducting fluorine-doped tin oxide (FTO) coated glass plates by cathodic electrochemical deposition method at different potentials and temperature conditions. The deposited samples were characterized by XRD and SEM techniques to confirm their structures, morphologies and optical properties. These measurements show that Mg doped ZnO has a wurtzite structure and that the strongest intensity of the (002) peak is found at 60 degrees C and -1.0 V. Tunable transmittance of Mg doped ZnO has a band gap energy from 3.45 eV to 3.82 eV, which is the direct evidence of doping.

Effects of graphene oxide (GO) on GO-Cu2O composite films grown by using electrochemical deposition for a PEC photoelectrode

“…Therefore, we assumed that the absorption coefficient was α ∼ −In(T) within the fundamental absorption region, and a better linearity was observed for the plot of (αhν) 2 versus hν. Finally, the band gap energy could be deduced from the slopes of the plots [32]. The optical energy band-gap values in this study were 2.18, 1.94, 2.15 and 2.17 eV in the 0-, 1-, 3-and 10-wt% samples, respectively.…”

Effects of annealing temperature on GO–Cu2O composite films grown by electrochemical deposition for PEC photoelectrode

“…Finally, the band gap energy of the samples could be deduced from the slopes of the plot [43]. The optical energy band gap values were calculated to be 2.…”