Small polaron hopping conduction mechanism and enhanced thermoelectric power factor in the perovskite LaCoO<sub>3</sub> ceramic
K. P. Mohamed Jibri, J. Archana, M. Navaneethan, S. Harish
Abstract
In this work, we investigated the effect of La-site cation deficiency and Sr-substitution on the thermoelectric properties of polycrystalline samples of the La 0.9− x Sr x CoO 3 ( x = 0, 0.03, 0.05) ceramic synthesized via a solid-state reaction.
Topics & Concepts
PolaronThermoelectric effectRietveld refinementMaterials scienceThermoelectric materialsSeebeck coefficientElectrical resistivity and conductivityPerovskite (structure)Thermal conductionCondensed matter physicsThermodynamicsCrystal structureChemistryCrystallographyPhysicsElectronQuantum mechanicsComposite materialAdvanced Thermoelectric Materials and DevicesMagnetic and transport properties of perovskites and related materialsThermal Expansion and Ionic Conductivity