Bis(8-hydroxyquinoline) zinc (ZnQ2) nano-flowers by the various solution and surfactant in a water environment were synthesized at room temperature by a simple chemical precipitation method. The functional groups of the compound, structural, morphology, and fluorescence properties of Znq2 nanoparticles were examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), photoluminescence (PL) spectroscopy, and Ultraviolet–visible spectroscopy (UV–Vis). The ZnQ2 nanostructures were characterized by X-ray diffraction (XRD) analysis to confirm the crystalline nature of the synthesized ZnQ2 nanostructures by the various media and with/without surfactant. The mainly synthetic strategies are divided into three categories, which include growth in the same solvent environments, uneven solutions, and surfactant. Then, optoelectronic properties including luminescence, charge transport are reviewed. The results indicate that the configuration of ZnQ2 nanostructures depends on the crystal habit and growing environment. Different media could provide discrepant surroundings for crystal growth, which resulted in the products with diverse morphologies. These results for ZnQ2-CTAB certify that CTAB plays a crucial role in the formation of nanoflowers. Luminescence properties of Zinc complex nanostructures indicate that nano-flowers of zinc complex have the highest light intensity and lowest absorption. Also, the Znq2 nano-flowers and nano-sheets exhibited green photoluminescence with a peak at around 498–499 nm. The optical results obtained from ZnQ2 nanoflowers showed more PL-Quantum yields compared with nano-sheets about 30%.
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Shahedi, Z., Zare, H. & Sediqy, A. Manufacturing of nanoflowers crystal of ZnQ2 by a co-precipitation process and their morphology-dependent luminescence properties. J Mater Sci: Mater Electron (2021). https://doi.org/10.1007/s10854-021-05389-5