Low temperature electrical and thermal transport properties of the Ca3-xSbxCo4O9 system

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dc.authoridALTIN, Serdar/0000-0002-4590-907X
dc.authoridDemirel, Serkan/0000-0003-1158-4956
dc.authorwosidALTIN, Serdar/H-4880-2014
dc.authorwosidDemirel, Serkan/AAA-2133-2020
dc.contributor.authorDemirel, S.
dc.contributor.authorAksan, M. A.
dc.contributor.authorAltin, S.
dc.date.accessioned2024-08-04T20:36:13Z
dc.date.available2024-08-04T20:36:13Z
dc.date.issued2012
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIn this study, the Ca3-xSbxCo4O9 (x = 0.0, 0.5, 0.75 and 1.0) system was fabricated using solid-state reaction technique. From the XRD analysis, it was found that increase of the Sb concentration in the system caused formation of impurity phases and therefore a distortion in the main lattice. The SEM-EDX results showed that the grain size reduced with increasing Sb in the Ca3Co4O9 system. The resistivity, rho, value increased with increasing the Sb-content and insulating behavior was obtained as the temperature was decreased. The samples fabricated have positive thermoelectric power, S, value, suggesting that holes are dominant charge carriers in the samples. S value decreased with decreasing the temperature. The Fermi energy, E-F , and the carrier concentration, n, decreased by the Sb-substitution. The Sb-substitution caused a decrease of thermal conductivity, kappa which is due to reduction of the phonon thermal conductivity, kappa(ph,) in the system. Figure of merit, ZT, value decreased significantly due to strongly increase in rho. The impurities, defects and distortion with substitution of Sb are responsible for large variation on electrical and thermal transport properties.en_US
dc.identifier.doi10.1007/s10854-012-0792-8
dc.identifier.endpage2256en_US
dc.identifier.issn0957-4522
dc.identifier.issn1573-482X
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-84869506812en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage2251en_US
dc.identifier.urihttps://doi.org/10.1007/s10854-012-0792-8
dc.identifier.urihttps://hdl.handle.net/11616/95860
dc.identifier.volume23en_US
dc.identifier.wosWOS:000310955900026en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal of Materials Science-Materials in Electronicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectThermoelectric Propertiesen_US
dc.subjectPerformanceen_US
dc.titleLow temperature electrical and thermal transport properties of the Ca3-xSbxCo4O9 systemen_US
dc.typeArticleen_US

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