Journal of Electronic Materials

, Volume 36, Issue 7, pp 721–726 | Cite as

Solution-Chemical Syntheses of Nano-Structured Bi2Te3 and PbTe Thermoelectric Materials

  • X. JiEmail author
  • B. Zhang
  • T.M. Tritt
  • J.W. Kolis
  • A. Kumbhar

In this work, nano-structured Bi2Te3 and PbTe thermoelectric materials were synthesized separately via solvothermal, hydrothermal and low-temperature aqueous chemical routes. X-ray diffraction (XRD), field-emission scanning-electron microscopy (FESEM), transmission electron microscopy (TEM), and energy dispersive spectroscopy (EDS) were used to analyze the powder products. Results showed that the as-prepared Bi2Te3 samples were all single-phased and consisted of irregular spherical granules with diameters of ∼30 nm whereas the PbTe samples were mainly composed of well-crystallized cubic crystals with average size of approximately 100 nm. Some nanotubes and nanorods were found in Bi2Te3 and PbTe samples, respectively; these were identified as Bi2Te3 nanotubes and PbTe nanorods by EDS analysis. Possible reaction mechanisms for these syntheses are discussed in detail herein.


Thermoelectric materials nano-structured Bi2Te3 PbTe solution-chemical synthesis reaction mechanism 


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We cordially acknowledge financial support from a DOE/EPSCoR Implementation Grant (#DE-FG02-04ER-46139) and support from the SC EPSCoR Office/Clemson University cost sharing for the work reported in this publication.


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Copyright information

© TMS 2007

Authors and Affiliations

  • X. Ji
    • 1
    Email author
  • B. Zhang
    • 1
  • T.M. Tritt
    • 1
  • J.W. Kolis
    • 2
  • A. Kumbhar
    • 3
  1. 1.Department of Physics and AstronomyClemson UniversityClemsonUSA
  2. 2.Department of ChemistryClemson UniversityClemsonUSA
  3. 3.EM FacilityClemson UniversityAndersonUSA

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