Thermoelectric properties of La3+ and Ce3+ co-doped CaMnO3 prepared by tape casting

C. M. Kim, D. H. Kim, H. Y. Hong, K. Park

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The structural and thermoelectric transport properties of Ca0.9La0.1– xCexMnO3– δ (x = 0 – 0.1) prepared through tape casting process were investigated. The thermoelectric transport properties of CaMnO3 were optimized by the La3+ and Ce3+ co-doping and tape casting process. The Ce3+ substitution substantially enhanced the dimensionless figure-of-merit (ZT) due to the increases in electrical conductivity and absolute Seebeck coefficient. Of the studied samples, Ca0.9La0.025Ce0.075MnO3– δ had the maximum ZT (0.17) at 800 °C, and this value was 42% and 70% larger than those of singly doped Ca0.9La0.1MnO3– δ (0.12) and Ca0.9Ce0.1MnO3– δ (0.10), respectively. We demonstrate that both the La3+ and Ce3+ co-doping and tape casting process are highly promising approaches in enhancing the high-temperature thermoelectric transport properties of CaMnO3.

Original languageEnglish
Pages (from-to)735-741
Number of pages7
JournalJournal of the European Ceramic Society
Volume40
Issue number3
DOIs
Publication statusPublished - 2020 Mar
Externally publishedYes

Keywords

  • Electrical conductivity
  • Microstructure
  • Sintering
  • Thermoelectric properties

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Thermoelectric properties of La<sup>3+</sup> and Ce<sup>3+</sup> co-doped CaMnO<sub>3</sub> prepared by tape casting'. Together they form a unique fingerprint.

Cite this