Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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A Simple and Quick Chemical Synthesis of Nanostructured Bi2Te3, Sb2Te3, and BixSb2-xTe3

  • Kim, Hee-Jin (Department of Chemistry and Nano Science, Ewha Womans University) ;
  • Lee, Ki-Jung (Northfield Mount Hermon School 12th) ;
  • Kim, Sung-Jin (Department of Chemistry and Nano Science, Ewha Womans University) ;
  • Han, Mi-Kyung (Department of Chemistry and Nano Science, Ewha Womans University)
  • Received : 2010.01.04
  • Accepted : 2010.02.22
  • Published : 2010.05.20
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Abstract

We report a simple and quick route for the preparation of high-quality, nearly monodisperse $Bi_2Te_3$, $Sb_2Te_3$, and $Bi_xSb_{2-x}-Te_3$ nanocrystallites. The reactions of bismuth acetate or antimony acetate with Te in oleic acid result in pure phase of $Bi_2Te_3$ or $Sb_2Te_3$ nanoparticles, respectively. Also, ternary $Bi_xSb_{2-x}Te_3$ nanoparticles were successfully synthesized using the same method. The size and morphology of the nanoparticles were controlled by varying the stabilizing agents. The as-prepared nanoparticles are characterized by X-ray diffraction, scanning electron microscope, and high-resolution transmission electron microscope using an energy dispersive spectroscopy.

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