microwave assisted synthesis of polycrystalline flower-like zincoxide nanostructure using dicationic ionic liquid

in this paper, synthesis of the flower-like zinc oxide was performed using microwave assisted dicationic ionic liquid [mmp(im)2 ]br2 . the polycrystalline flower-like zinc oxide nanostructure was obtained when a suitable mole ratio (ionic liquid /zinc acetate) and short duration microwave was used. x-ray diffraction (xrd), scanning electron microscopy (sem), and photoluminescence (pl) spectra were employed to characterize of the as-synthesized zinc oxide. the sem image illustrates that the surface of flower-like zinc oxide is polycrystalline with nanoparticles of about 48 nm. the samples fabricated in presence and absence of ionic liquid exhibited (uv, green-yellow) and (uv, blue, green) emission, respectively, while commercial zno exhibited uv and green emission.