doi:10.1016/j.ceramint.2024.12.375engAmirkhizi, P.Madre, M.A.Dura, O.J.Torres, M.A.Sotelo, A.Kovalevsky, A.V.Rasekh, Sh.Enhancing thermoelectric performance of CaMnO3 through a Y- and La- dual-doping strategyART-2024-142462A classical ceramic route has been used in this work to prepare Y and La co-doped CaMnO3 thermoelectric compound seeking to improve its thermoelectric properties. The study highlights significant improvements in electrical and thermal transport properties achieved with minimal doping levels and a cost-effective synthesis process. The co-doping strategy effectively reduced electrical resistivity (reaching 10.8 mΩ cm at 800 °C for 0.03 (Y, La)-doped samples) while maintaining a relatively high Seebeck coefficient (300 μV/K at 800 °C for 0.01 (Y, La)-doped samples). Moreover, the thermal conductivity was minimized (1.65 W/(K m) at 800 °C for 0.03 (Y, La)-doped samples), leading to outstanding thermoelectric performance, with 0.47 mW/(K2m) power factor, and 0.25 ZT values at 800 °C (for 0.01 (Y, La)-doped samples. These results are among the best values reported so far for this family of compounds, underscoring the potential of this material for high-temperature thermoelectric applications and the efficiency of the classical ceramic approach with reduced dopant usage.2024http://zaguan.unizar.es/record/15019210.1016/j.ceramint.2024.12.375http://zaguan.unizar.es/record/150192oai:zaguan.unizar.es:150192info:eu-repo/grantAgreement/ES/AEI/CEX2023-001286-Sinfo:eu-repo/grantAgreement/ES/DGA/T54-23Rinfo:eu-repo/grantAgreement/ES/UZ/UZ2022-IAR-09Ceramics International 51, 7 (2024), 9421-9428byhttps://creativecommons.org/licenses/by/4.0/deed.esinfo:eu-repo/semantics/openAccess