High temperature thermoelectric properties of co-doped misfit-layered cobaltites

Category: Transient Plane Source

Author(s): Ankam Bhaskar, Chia-Jyi Liu, Zong-Ren Yang

Keywords: Thermal Conductivity, Thermoelectric Materials, Thermopower, Transient Plane Source Technique, X-ray Diffraction, X-ray diffraction (XRD), XRD

Abstract: The thermoelectric properties of the co-doped misfit-layered cobaltites of Ca3-x­AgxCo3.95Fe­0.05O9+delta (x=0.0, 0.1, 0.2, 0.3) were investigated at temperatures between 300 and 700 K. It was found that the thermopower increased with increasing temperature. The thermal conductivity was found to increase with increasing Ag+ content in the samples, and the highest calculated figure of merit was determined for the Ca2.8Ag0.2Co3.95Fe0.05O9+delta.

Reference: Ceramics International, 41, 9A (2015) 10456-10460

DOI: 10.1016/j.ceramint.2015.04.121

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