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  • Title: Solvothermal Synthesis of Ternary Sulfides of Sb2 - xBixS3(x = 0.4, 1) with 3D Flower-Like Architectures.
    Author: Sun J, Shen X, Guo L, Wang G, Park J, Wang K.
    Journal: Nanoscale Res Lett; 2009 Nov 13; 5(2):364-9. PubMed ID: 20672058.
    Abstract:
    Flower-like nanostructures of Sb2 - xBixS3(x = 0.4, 1.0) were successfully prepared using both antimony diethyldithiocarbamate [Sb(DDTC)3] and bismuth diethyldithiocarbamate [Bi(DDTC)3] as precursors under solvothermal conditions at 180 °C. The prepared Sb2 - xBixS3 with flower-like 3D architectures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS), high-resolution transmission electron microscopy (HRTEM), and selected area electron diffraction (SAED). The flower-like architectures, with an average diameter of ~4 μm, were composed of single-crystalline nanorods with orthorhombic structures. The optical absorption properties of the Sb2 - xBixS3 nanostructures were investigated by UV-Visible spectroscopy, and the results indicate that the Sb2 - xBixS3 compounds are semiconducting with direct band gaps of 1.32 and 1.30 eV for x = 0.4 and 1.0, respectively. On the basis of the experimental results, a possible growth mechanism for the flower-like Sb2 - xBixS3 nanostructures is suggested.
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