000106629 001__ 106629
000106629 005__ 20231221135831.0
000106629 0247_ $$2doi$$a10.1007/s10854-020-04119-7
000106629 0248_ $$2sideral$$a119891
000106629 037__ $$aART-2020-119891
000106629 041__ $$aeng
000106629 100__ $$aÇetin, G.
000106629 245__ $$aDrastic modification of low temperature thermoelectric properties of Na-doped Bi2Sr2Co2Oy ceramics prepared via laser floating zone technique
000106629 260__ $$c2020
000106629 5060_ $$aAccess copy available to the general public$$fUnrestricted
000106629 5203_ $$aIn this study, Bi2Sr2-xNaxCo2Oy (x = 0.0, 0.05, 0.075, 0.10, and 0.15) ceramic powders have been fabricated via the classical ceramic route, followed by a texturing process through the laser floating zone technique. XRD patterns show the thermoelectric phase as the major one. In addition, Na-substitution reduces the amount of secondary phases, when compared to the pure sample. SEM observations point out that grain orientation is significantly improved when Na-content is increased. Na-substitution reduces electrical resistivity from 35 (in pure samples) to 19.6 mO cm (in Na = 0.05 ones) at around room temperature, while Seebeck coefficient is, approximately, twice measured in Na-free. On the other hand, thermal conductivity is slightly lower in undoped samples (0.83 W/K m), when compared to the Na-substituted ones (1.10–1.40 W/K m) at room temperature, due to their lower electrical conductivity. Finally, ZT values are higher when the Na-content is increased, reaching 0.022 at around 400 K.
000106629 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FEDER/T54-17R$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2017-82183-C3-1-R
000106629 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000106629 590__ $$a2.478$$b2020
000106629 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b138 / 273 = 0.505$$c2020$$dQ3$$eT2
000106629 591__ $$aPHYSICS, CONDENSED MATTER$$b38 / 69 = 0.551$$c2020$$dQ3$$eT2
000106629 591__ $$aPHYSICS, APPLIED$$b83 / 160 = 0.519$$c2020$$dQ3$$eT2
000106629 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b215 / 333 = 0.646$$c2020$$dQ3$$eT2
000106629 592__ $$a0.488$$b2020
000106629 593__ $$aAtomic and Molecular Physics, and Optics$$c2020$$dQ2
000106629 593__ $$aBioengineering$$c2020$$dQ2
000106629 593__ $$aBiomaterials$$c2020$$dQ2
000106629 593__ $$aCondensed Matter Physics$$c2020$$dQ2
000106629 593__ $$aBiophysics$$c2020$$dQ2
000106629 593__ $$aElectrical and Electronic Engineering$$c2020$$dQ2
000106629 593__ $$aElectronic, Optical and Magnetic Materials$$c2020$$dQ2
000106629 593__ $$aBiomedical Engineering$$c2020$$dQ2
000106629 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000106629 700__ $$aÖzçelik, B.
000106629 700__ $$aGürsul, M.
000106629 700__ $$0(orcid)0000-0002-0794-3998$$aMadre, M.A.$$uUniversidad de Zaragoza
000106629 700__ $$0(orcid)0000-0001-7056-0546$$aSotelo, A.$$uUniversidad de Zaragoza
000106629 700__ $$aAdachi, S.
000106629 700__ $$aTakano, Y.
000106629 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000106629 773__ $$g31, 18 (2020), 15558-15564$$pJ. mater. sci., Mater. electron.$$tJournal of Materials Science: Materials in Electronics$$x0957-4522
000106629 8564_ $$s1348375$$uhttps://zaguan.unizar.es/record/106629/files/texto_completo.pdf$$yPostprint
000106629 8564_ $$s1402608$$uhttps://zaguan.unizar.es/record/106629/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000106629 909CO $$ooai:zaguan.unizar.es:106629$$particulos$$pdriver
000106629 951__ $$a2023-12-21-13:42:51
000106629 980__ $$aARTICLE