Solvothermal synthesis of ternary sulfides of Sb2_xBixS3 (x=0.4,1) with 3D flower-like architectures

Authors

Jiquan Sun, Jiangsu University China
Xiaoping Shen, Jiangsu University ChinaFollow
Lijun Guo, Jiangsu University
Guoxiu Wang, University of WollongongFollow
Jinsoo Park, University of WollongongFollow
Kun Wang, Jiangsu University

RIS ID

33292

Publication Details

Sun, J., Shen, X., Guo, L., Wang, G., Park, J. and Wang, K. (2010). Solvothermal synthesis of ternary sulfides of Sb_{2 − x}Bi_xS₃(x = 0.4, 1.0) with 3D flower-like architectures. Nanoscale Research Letters, 5 (2), 364-369.

Abstract

Flower-like nanostructures of Sb_{2 − x}Bi_xS₃(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 Sb_{2 − x}Bi_xS₃ 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 Sb_{2 − x}Bi_xS₃ nanostructures were investigated by UV–Visible spectroscopy, and the results indicate that the Sb_{2 − x}Bi_xS₃ 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 Sb_{2 − x}Bi_xS₃ nanostructures is suggested.