Special Issue — Advanced Materials Development and Performance for its Optimal Application; Guest Editor: Yun-Hae KimNo Access

Study of thermoelectric properties of Ca-doped LaCoO₃

Kei-Ichiro Murai

Department of Advanced Materials, Institute of Technology and Science, The University of Tokushima, 2-1 Minami-Josanjima, Tokushima 7708506, Japan

Corresponding author.

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Ken Nagai

Graduate School of Advanced Technology and Science, The University of Tokushima, 2-1 Minami-Josanjima, Tokushima 7708506, Japan

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Masaru Takahashi

Graduate School of Advanced Technology and Science, The University of Tokushima, 2-1 Minami-Josanjima, Tokushima 7708506, Japan

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Shosuke Takakusa

Department of Chemical Science and Technology, The University of Tokushima, 2-1 Minami-Josanjima, Tokushima 7708506, Japan

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, and

Toshihiro Moriga

Department of Advanced Materials, Institute of Technology and Science, The University of Tokushima, 2-1 Minami-Josanjima, Tokushima 7708506, Japan

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https://doi.org/10.1142/S0217984915400266Cited by:3 (Source: Crossref)

Abstract

The samples of La_1-xCa_xCoO₃ (x = 0, 0.05, 0.10, 0.15) were synthesized by solid state reaction method for studying thermoelectric properties. The properties of electrical conductivity and Seebeck coefficient were measured in the temperature ranging from room temperature to 573 K. The results of electrical conductivity was increasing Ca substitution. The highest value of electrical conductivity is 1574 S/cm. It is concluded that Ca²⁺ doping in LaCoO₃ has the effect to inhibit Seebeck coefficient from decreasing.

Keywords:

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