Thermoelectric properties of Ca3-xEuxCo 4O9+δ (0≤x≤0.1)

Ankam Bhaskar, Y. C. Huang, Chia Jyi Liu

研究成果: Article

11 引文 斯高帕斯(Scopus)

摘要

Ca3-xEuxCo4O9+δ (x=0.00, 0.05 and 0.10) samples were prepared by conventional solid-state synthesis and their properties measured at 25-300 K. The x-ray diffraction (XRD) patterns revealed that all the samples are single phase. The thermopower of all the samples was positive, indicating that the predominant carriers are holes over the entire temperature range. The total thermal conductivity values decreased monotonically with increasing Eu3+ content. Ca2.95Eu 0.05Co4O9+δ had the highest dimensionless figure of merit of 0.038 at 300 K, representing an improvement of about 52% compared to undoped Ca3Co4O9+δ.

原文English
頁(從 - 到)24-27
頁數4
期刊Solid State Communications
168
DOIs
出版狀態Published - 2013 一月 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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