Journal of Materials Science

, Volume 44, Issue 13, pp 3528–3532 | Cite as

Influence of NaOH on the synthesis of Bi2Te3 via a low-temperature aqueous chemical method

  • Lina Zhou
  • Xiaobin Zhang
  • Xinbing Zhao
  • Tiejun Zhu
  • Yongqiang Qin


NaOH was used to adjust the pH of the solution in the synthesis of nanostructured Bi2Te3 alloys via hydrothermal and solvothermal process. However, it is still elusive whether NaOH is necessary and how it affects on the size and morphology of Bi2Te3 which contributes a lot to the thermoelectric figure of merit ZT. The present work suggested that bulk quantity of nanostructured Bi2Te3 with considerable uniform morphology of nanoflake could be yielded without NaOH when the reaction time ranged from 6 h to 48 h. These nanoflakes have about 10–30 nm thickness and 50–300 nm width. When adding NaOH, the morphology of Bi2Te3 becomes various.


Bi2Te3 Sb2Te3 BiOCl Bismuth Telluride Thermoelectric Figure 



This work was supported by the National Major Foundation Research Project (“973”) (2007CB607502).


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Lina Zhou
    • 1
  • Xiaobin Zhang
    • 1
  • Xinbing Zhao
    • 1
  • Tiejun Zhu
    • 1
  • Yongqiang Qin
    • 1
  1. 1.State Key Laboratory of Silicon Materials, Department of Materials Science and EngineeringZhejiang UniversityHangzhouChina

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