Enhanced thermoelectric properties induced by chemical pressure in Ca3Co4O9

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dc.authoridDemirel, Serkan/0000-0003-1158-4956
dc.authoridALTIN, Serdar/0000-0002-4590-907X
dc.authoridAltin, Emine/0000-0002-2187-4036
dc.authoridSahinbay, Sevda/0000-0002-5482-4772
dc.authorwosidSahinbay, Sevda/Q-7698-2018
dc.authorwosidDemirel, Serkan/AAA-2133-2020
dc.authorwosidALTIN, Serdar/H-4880-2014
dc.authorwosidALTIN, EMINE/AHE-9774-2022
dc.contributor.authorDemirel, S.
dc.contributor.authorAvci, S.
dc.contributor.authorAltin, E.
dc.contributor.authorAltin, S.
dc.contributor.authorYakinci, M. E.
dc.date.accessioned2024-08-04T20:38:04Z
dc.date.available2024-08-04T20:38:04Z
dc.date.issued2014
dc.departmentİnönü Üniversitesien_US
dc.description.abstractWe report the investigation of boron substitution on structural, electrical, thermal, and thermoelectric properties of Ca-3_xBxCo4O9 (x=0, 0.5, 0.75, and 1) in the temperature range between 300 K and 5 K. X-ray diffraction studies show that the Ca3Co4O9 phase is successfully preserved as the majority phase in the x=0.5 sample despite the small size of boron ions. Electrical transport measurements confirm that B3+ substitution for Ca2+ causes an increase in resistivity due to the decrease in carrier concentration. x=0.5 sample is found to have a Seebeck coefficient of 181 mu V/K at room temperature which is similar to 1.5 times higher than that of the pure Ca3Co4O9. Our results indicate that the chemical pressure due to the large ionic radii difference between B3+ (0.27 angstrom) and Ca2+ (1 angstrom) enhances the thermoelectric properties as long as the unique crystal structure of Ca3Co4O9 is preserved. (c) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.en_US
dc.identifier.doi10.1016/j.ceramint.2013.10.090
dc.identifier.endpage5222en_US
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-84895062157en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage5217en_US
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2013.10.090
dc.identifier.urihttps://hdl.handle.net/11616/96361
dc.identifier.volume40en_US
dc.identifier.wosWOS:000332268200015en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofCeramics Internationalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCa3Co4O9en_US
dc.subjectThermopoweren_US
dc.subjectChemical pressureen_US
dc.titleEnhanced thermoelectric properties induced by chemical pressure in Ca3Co4O9en_US
dc.typeArticleen_US

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