Iranian Nanotechnology Society International Journal of Nanoscience and Nanotechnology 1735-7004 6 4 2010 12 01 Microwave Assisted Synthesis of Polycrystalline Flower-like ZincOxide Nanostructure Using Dicationic Ionic Liquid 216 222 3957 EN M. Movahedi Department of Chemistry, Tarbiat Modares University, Tehran, I.R. Iran , A. R. Mahjoub Department of Chemistry, Tarbiat Modares University, Tehran, I.R. Iran I. Yavari Department of Chemistry, Tarbiat Modares University, Tehran, I.R. Iran E. Kowsari Department of Chemistry, Tarbiat Modares University, Tehran, I.R. Iran Journal Article 2010 09 05 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.  https://www.ijnnonline.net/article_3957_86c51678350f656dcc7f490a43946ee5.pdf