Work

Thermoelectric properties of Nb-doped Sr1−x (La0.5Na0.5) x TiO3 perovskites

Year: 2021

Type: article

Abstract: We report the thermal conductivity (κ) of perovskite Sr1−x (La0.5Na0.5) x TiO3 (0 ≤ x ≤ 1) and the thermoelectric properties of Nb-doped samples for x = 0.1 and 0.2. The κ of the solid solution shows a distinct minimum near the cubic-tetragonal phase boundary at x = 0.2, where the value becomes close to the minimum theoretical κ. Nb doping to x = 0.2 retains the high power factor found in Nb-doped SrTiO3, but also raises the κ to result in a thermoelectric figure of merit of 0.24 at 773 K.

Source: Applied Physics Express

DOI: 10.35848/1882-0786/ac42fe

Authors: Makoto Tachibana, Ahmad Rifqi Muchtar, Takao Mori

Institutions: National Institute for Materials Science, Bandung Institute of Technology, University of Tsukuba

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $1,500