High-temperature thermoelectric properties of delafossite oxide CuRh 1-xMgxO2

H. Kuriyama, M. Nohara, T. Sasagawa, K. Takubo, T. Mizokawa, K. Kimura, H. Takagi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

We report high temperature thermoelectric properties of doped delafossite oxide CuRh0.9Mg0.1O2. The parent compound CuRhO2 is a band insulator and becomes metallic upon Mg doping for Rh. We found that polycrystalline CuRh0.9Mg0.1O 2 shows a large thermoelectric power S ∼ +270 μV/K despite its low resistivity ∼ 6 mΩcm at high temperatures around 1000 K. Combining these with a thermal conductivity κ ∼ 80 mW/cm K, we estimate a large dimensionless figure of merit ZT ∼ 0.15 at 1000 K.

Original languageEnglish
Title of host publicationProceedings ICT'06 - 25th International Conference on Thermoelectrics
Pages97-98
Number of pages2
DOIs
Publication statusPublished - Dec 1 2006
Externally publishedYes
EventICT'06 - 25th International Conference on Thermoelectrics - Vienna, Austria
Duration: Aug 6 2006Aug 10 2006

Publication series

NameInternational Conference on Thermoelectrics, ICT, Proceedings

Other

OtherICT'06 - 25th International Conference on Thermoelectrics
CountryAustria
CityVienna
Period8/6/068/10/06

ASJC Scopus subject areas

  • Engineering(all)

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    Kuriyama, H., Nohara, M., Sasagawa, T., Takubo, K., Mizokawa, T., Kimura, K., & Takagi, H. (2006). High-temperature thermoelectric properties of delafossite oxide CuRh 1-xMgxO2. In Proceedings ICT'06 - 25th International Conference on Thermoelectrics (pp. 97-98). [4133245] (International Conference on Thermoelectrics, ICT, Proceedings). https://doi.org/10.1109/ICT.2006.331289