Preparation of ZnO nanoparticles from [bis(acetylacetonato)zinc(II)] -oleylamine complex by thermal decomposition

摘要

[Bis(acetylacetonato)zinc(II)] was used as a precursor to prepare zinc oxide nanoparticles of 12-20 nm in average diameter by thermal decomposition. The different combinations of triphenylphosphine, (C_(18)H_(15)P) and oleylamine, (C_(18)H_(37)N) were added as surfactants to control the particle size. The products were characterized by X-ray diffraction (XRD), photoluminescence spectroscopy (PL), FT-1R spectroscopy, surface area, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to depict the phase and morphology. The synthesized ZnO nanoparticles have a hexagonal zincite structure. The photoluminescence of ZnO nanoparticles was studied by exciting the sample with an ArF laser (193 nm). A strong blue-shift of the emission band of ZnO, suggesting a strong quantum size effect, is observed.