Chemical synthesis of anisotropic nanocrystalline Sb 2Te 3 and low thermal conductivity of the compacted dense bulk

Wenzhong Wang, Xiao Yan, Bed Poudel, Yi Ma, Qing Hao, Jian Yang, Gang Chen, Zhifeng Ren

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

We describe a one-step, one-pot non-aqueous route for the synthesis of Sb 2Te 3 nanocrystals with hexagonal shape and highly anisotropic nanostructures. The as-prepared nanostructures were characterized by XRD, TEM and HRTEM. The effect of the stabilizers on the nanocrystal morphology has been discussed in detail. We have studied the thermal conductivity of the compacted bulk from the Sb 2Te 3 nanostructures. The results indicated that a very low thermal conductivity of about 1 W/mK at 300 K, comparing to 4.7 W/mK of the polycrystalline bulk, was achieved. The results indicated that nanostructured Sb 2Te 3 is potentially a good candidate for engineered nanocomposites that can lead to high thermoelectric figure-of-merit.

Original languageEnglish (US)
Pages (from-to)452-456
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume8
Issue number1
DOIs
StatePublished - Jan 2008

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Chemical synthesis of anisotropic nanocrystalline Sb <sub>2</sub>Te <sub>3</sub> and low thermal conductivity of the compacted dense bulk'. Together they form a unique fingerprint.

Cite this