Presentation Information
[10a-N201-3]Fabrication of oxide-based (p × n)-type multilayered materials using LaCoO3 substitution systems.
〇(M2)Motoya Takenaka1, Shogo Yoshida1, Ryuji Okazaki1 (1.Tokyo University of Science)
Keywords:
thermoelectric material,transverse thermoelectric conversion
In this study, we focused on the perovskite oxide LaCoO3 with the aim of realising a high-temperature-stable transverse thermoelectric conversion material. LaCoO3 allows for both p-type and n-type doping, and asymmetry arises in the electron and hole conduction processes due to the spin state blockade effect. Utilising this property, we fabricated La1-xSrxCoO3 and LaCo1-xTixO3, and (p×n)-type multilayered materials by combining these. We also measured the transport coefficients and investigated the optimal conditions for thermoelectric performance.