Improvement of thermoelectric power factor of hydrothermally prepared Bi 0.5Sb 1.5Te 3 compared with its solvothermally prepared counterpart

Chia Jyi Liu, Gao Jhih Liu, Chun Wei Tsao, Yo Jhih Huang

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

We report on the successful hydrothermal synthesis of Bi 0.5Sb 1.5Te 3, using water as the solvent. The products of the hydrothermally prepared Bi 0.5 Sb 1.5Te 3 were hexagonal platelets with edges of 200-1500 nm and thicknesses of 30-50 nm. Both the Seebeck coefficient and electrical conductivity of the hydrothermally prepared Bi 0.5Sb 1.5Te 3 were larger than those of the solvothermally prepared counterpart. Hall measurements of Bi 0.5Sb 1.5Te 3 at room temperature indicated that the charge carrier was p-type, with a carrier concentration of 9.47 × 10 18 cm -3 and 1.42 × 10 19 cm -3 for the hydrothermally prepared Bi 0.5Sb 1.5Te 3 and solvothermally prepared sample, respectively. The thermoelectric power factor at 290 K was 10.4 μW/cm K 2 and 2.9 μW/cm K 2 for the hydrothermally prepared Bi 0.5Sb 1.5Te 3 and solvothermally prepared sample, respectively.

原文English
頁(從 - 到)1499-1503
頁數5
期刊Journal of Electronic Materials
38
發行號7
DOIs
出版狀態Published - 2009 七月 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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