150800 20260126150158.0 doi 10.1016/j.mseb.2025.117985 sideral 142738 ART-2025-142738 eng Özkurt, Pinar Wavelength-induced modifications of thermoelectric properties of laser-textured Bi2Sr2-xBaxCo2O8 ceramics for sustainable energy generation 2025 Access copy available to the general public Unrestricted Ba-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. info:eu-repo/grantAgreement/ES/DGA/T54-23R info:eu-repo/semantics/embargoedAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Madre, M.A. Universidad de Zaragoza (orcid)0000-0002-0794-3998 Özkurt, Berdan Torres, M.A. Universidad de Zaragoza (orcid)0000-0003-3995-5763 Sotelo, A. Universidad de Zaragoza (orcid)0000-0001-7056-0546 Rasekh, Sh. Universidad de Zaragoza (orcid)0000-0003-3466-9952 5002 305 Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Expresión Gráfica en Ing. 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 313 (2025), 117985 [6 pp.] Mater. sci. eng., B, Solid-state mater. adv. technol. Materials Science and Engineering B: Solid-State Materials for Advanced Technology 0921-5107 703097 http://zaguan.unizar.es/record/150800/files/texto_completo.pdf Postprint info:eu-repo/date/embargoEnd/2027-01-06 1883910 http://zaguan.unizar.es/record/150800/files/texto_completo.jpg?subformat=icon icon Postprint info:eu-repo/date/embargoEnd/2027-01-06 oai:zaguan.unizar.es:150800 articulos driver 2026-01-26-14:59:59 ARTICLE