The Effect of RF Power on the Properties of Gallium and Aluminium Co-doped Zinc Oxide (GAZO) Thin Films

Photochromic Behavior of ZnO/MoO3 Interfaces

“…Interestingly, the XPS spectra of O 1s region of the same mixtures and in regard to the ZnO and MoO 3 samples as references show that the O 1s core-level spectrum exhibits three different forms of oxygen. On the basis of the literature, − the peak located at lower energy about 530.5 eV belongs to the Zn–O bonding in ZnO Würtzite structure; peaks located at 531.7 and 532.6 eV can be respectively ascribed to the Zn–O surface bonding and to the presence of C–O bonding originating from the oxy-carbonated molecules adsorbed on the ZnO surface. It appears that in both pure MoO 3 and ZnO samples the intermediate signal is absent or weaker than in the Zno–MoO 3 mixtures (equal to about 18% the irradiated time).…”