Controlling the Thermoelectric Behavior of La-Doped SrTiO<sub>3</sub> through Processing and Addition of Graphene Oxide
Dursun Ekren, Jianyun Cao, Feridoon Azough, Demie Kepaptsoglou, Quentin M. Ramasse, Ian A. Kinloch, Robert Freer
Abstract
value across the operating temperature range of 300-867 K. STEM-EELS maps of the optimized sample show a pronounced depletion of Sr and evident deficiency of O and La at the grain boundary region. Theoretical modeling using a two-phase model implies that the addition of GO can effectively improve carrier mobility in the grain boundary phase. This work provides guidance for the development of high-performance thermoelectric ceramic oxides.
Topics & Concepts
Materials scienceGrapheneOxideThermoelectric effectDopingNanotechnologyThermoelectric materialsEngineering physicsChemical engineeringOptoelectronicsMetallurgyThermal conductivityComposite materialThermodynamicsEngineeringPhysicsAdvanced Thermoelectric Materials and DevicesThermal properties of materialsTransition Metal Oxide Nanomaterials