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000150800 005__ 20251219150012.0
000150800 0247_ $$2doi$$a10.1016/j.mseb.2025.117985
000150800 0248_ $$2sideral$$a142738
000150800 037__ $$aART-2025-142738
000150800 041__ $$aeng
000150800 100__ $$aÖzkurt, Pinar
000150800 245__ $$aWavelength-induced modifications of thermoelectric properties of laser-textured Bi2Sr2-xBaxCo2O8 ceramics for sustainable energy generation
000150800 260__ $$c2025
000150800 5060_ $$aAccess copy available to the general public$$fUnrestricted
000150800 5203_ $$aBa-doped Bi2Sr2-xBaxCo2O8 samples have been directionally grown using the Laser Floating Zone technique using two different lasers, leading to significant differences between the samples. Powder XRD patterns revealed that the major phase in all samples is the thermoelectric one, without notable differences with the type of laser. On the other hand, microstructure studies showed significant differences between Nd:YAG and CO2-grown samples. Use of CO2 laser promoted a reduction of secondary phases content and a higher grain alignment. Furthermore, Ba-doping further decreases the secondary phases content and increases grain alignment. The electrical resistivity was affected by the different microstructures, being lower for the CO2-grown samples, reaching the lowest values at 650 °C in 0.125Ba-doped samples, 12.8 mΩ cm, which are among the best reported in the literature. However, S is maintained practically unchanged independently of the laser and composition. As a consequence, PF values mainly depend on the electrical resistivity and, consequently, the highest values at 650 °C, 0.22 mW/K2m, have been achieved in 0.125Ba samples textured with CO2 laser. These values are around the best ones presented in the literature for this material. Additionally these textured materials possess the advantage of avoiding the typical machining processes which are necessary in bulk materials for their integration into thermoelectric modules. These characteristics may enhance the interest on these materials in order to be used in practical devices to help their use to produce affordable, reliable and sustainable energy for all mankind.
000150800 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T54-23R
000150800 540__ $$9info:eu-repo/semantics/embargoedAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000150800 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000150800 700__ $$0(orcid)0000-0002-0794-3998$$aMadre, M.A.$$uUniversidad de Zaragoza
000150800 700__ $$aÖzkurt, Berdan
000150800 700__ $$0(orcid)0000-0003-3995-5763$$aTorres, M.A.$$uUniversidad de Zaragoza
000150800 700__ $$0(orcid)0000-0001-7056-0546$$aSotelo, A.$$uUniversidad de Zaragoza
000150800 700__ $$aRasekh, Sh.
000150800 7102_ $$15002$$2305$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Expresión Gráfica en Ing.
000150800 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000150800 773__ $$g313 (2025), 117985 [6 pp.]$$pMater. sci. eng., B, Solid-state mater. adv. technol.$$tMaterials Science and Engineering B: Solid-State Materials for Advanced Technology$$x0921-5107
000150800 8564_ $$s703097$$uhttps://zaguan.unizar.es/record/150800/files/texto_completo.pdf$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2027-01-06
000150800 8564_ $$s1883910$$uhttps://zaguan.unizar.es/record/150800/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2027-01-06
000150800 909CO $$ooai:zaguan.unizar.es:150800$$particulos$$pdriver
000150800 951__ $$a2025-12-19-14:58:21
000150800 980__ $$aARTICLE