000161779 001__ 161779
000161779 005__ 20251017144619.0
000161779 0247_ $$2doi$$a10.1007/s10854-025-15116-z
000161779 0248_ $$2sideral$$a144435
000161779 037__ $$aART-2025-144435
000161779 041__ $$aeng
000161779 100__ $$aKorkmaz, L.
000161779 245__ $$aInsights into the Structural, Microstructural and Thermoelectric Properties of Ce/Cr co-doped CaMnO3 manganites
000161779 260__ $$c2025
000161779 5060_ $$aAccess copy available to the general public$$fUnrestricted
000161779 5203_ $$aThis study investigates the structural, microstructural, and thermoelectric properties of Cr-substituted Ca0.99Ce0.01Mn1-xCrxO3 materials synthesized via solid-state reaction method. X-ray diffraction (XRD) analysis confirms the single-phase orthorhombic structure (Pnma space group) for all compositions, with successful incorporation of Cr into the crystal structure. A slight decrease in lattice parameters is observed, attributed to the smaller ionic radius of Cr3+ compared to Mn3+. Field Emission scanning electron microscope (FESEM) reveals that Cr doping inhibits grain growth and induces crack formation, which significantly impacts electrical resistivity. The charge transport mechanism is well-described by Mott’s adiabatic small polaron model, with activation energy increasing with Cr doping. The Seebeck coefficient remains negative across all temperatures, indicating n-type conduction, and the highest power factor (∼0.35 mW/K2m) is achieved for the 0.03Cr-doped sample at 800 °C. These results highlight the potential of Cr-doped CaMnO3 as a cost-effective and scalable thermoelectric material, with performance comparable to that reported using more complex synthesis methods.
000161779 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T54-23R
000161779 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000161779 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000161779 700__ $$0(orcid)0000-0002-8100-6417$$aÖzçelik, C.
000161779 700__ $$aGürsul, M.
000161779 700__ $$0(orcid)0000-0003-3995-5763$$aTorres, M. A.$$uUniversidad de Zaragoza
000161779 700__ $$0(orcid)0000-0002-0794-3998$$aMadre, M. A.$$uUniversidad de Zaragoza
000161779 700__ $$0(orcid)0000-0001-7056-0546$$aSotelo, A.$$uUniversidad de Zaragoza
000161779 700__ $$aÖzçelik, B.
000161779 7102_ $$15002$$2305$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Expresión Gráfica en Ing.
000161779 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000161779 773__ $$g36, 16 (2025), 1004 [12 pp.]$$pJ. mater. sci., Mater. electron.$$tJournal of Materials Science: Materials in Electronics$$x0957-4522
000161779 8564_ $$s2567396$$uhttps://zaguan.unizar.es/record/161779/files/texto_completo.pdf$$yVersión publicada
000161779 8564_ $$s2210423$$uhttps://zaguan.unizar.es/record/161779/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000161779 909CO $$ooai:zaguan.unizar.es:161779$$particulos$$pdriver
000161779 951__ $$a2025-10-17-14:21:02
000161779 980__ $$aARTICLE