zinc oxide
Influence of Mechanochemical and Ultrasonic Treatments on the Structure and Properties of ZnO-MoO3 (1:1) Composition
Oxide mixture ZnO-MoO3 (1:1) was modified by mechanochemical (during 2, 4 and 8 hours in air) and sonochemical (1 hr in water solution) treatments. The properties of obtained samples were studied by means of XRD, IR-spectroscopy, BET, DTA-TG, SEM methods. It was shown, that both kinds of treatments lead to the change of oxides crystalline structure, their surface morphology, porous structure and decrease particle size. The formation β-ZnMoO4 in the milling process and β-Мо8О23 at ultrasonic effect it was found
The Effect of Vacuumization on the Photoluminescence and Photoresponse Decay of ZnO Nanostructures Grown by Different Methods
The effect of vacuumization on photoluminescence (PL) spectra and photoresponse decay of ZnO nanostructures fabricated by different methods was investigated. The visible band of photoluminescence and ultraviolet (UV) photosensitivity of the samples grown from the vapor phase was associated with the surface defects such as oxygen vacancies, and for the samples grown by hydrothermal method - with presence of the surface hydroxyl groups.