Functionality and Activity of Sol-Gel-Prepared Co and Fe co-Doped Lead-Free BTO for Thermo-Optical Applications

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dc.contributor.authorTihtih, Mohammed
dc.contributor.authorIbrahim, Jamal Eldin F. M.
dc.contributor.authorBasyooni, Mohamed A.
dc.contributor.authorEn-nadir, Redouane
dc.contributor.authorHussainova, Irina
dc.contributor.authorKocserha, Istvan
dc.date.accessioned2024-02-23T14:16:37Z
dc.date.available2024-02-23T14:16:37Z
dc.date.issued2023
dc.departmentNEÜen_US
dc.description.abstractThe BTO, BFTC, and BCTF compounds were synthesized by the sol- gel method. The XRD study revealed the formation of single-phase tetragonal perovskite structures with the space group (P4mm). The crystalline parameters were studied as a function of Fe and Co contents and occupation of Ba and/or Ti sites by Fe and Co in the BTO lattice. It was found that the obtained strain increases when Ba2+ is substituted by Co2+ and Ti4+ by Fe3+. The Raman investigation confirmed the existence of three active modes (B1/E (TO1LO), (E (TO)/A1(TO3), and (A 1(LO)/E (TO), all of which are related to the existence of the tetragonal phase and strongly support the XRD results. The microstructural study showed a clear correlation between the presence of Fe and Co and the grain size distribution. Optical studies revealed the improvement in band gap energy with transition-metal (Fe and Co) co-doped BTO ceramics. The decrease in the band gap is explained by the competing effects of Columbian interactions, microdeformation, and oxygen defects. The results indicate that the presence of Fe and Co dopants enhances the absorption in the BTO ceramic. The dopants demonstrated an effect on thermal conductivity: they decreased the thermal conductivity of BTO, which is in the range of 0.76-2.23 W m(-1) K-1 at room temperature and 2.02-0.27 W m(-1) K-1 at elevated temperatures. The microstructure of the manufactured materials and the grain size distribution affect the compressive strength.en_US
dc.description.sponsorshipEstonian Research Council [PUT1063]; DoRa+ programen_US
dc.description.sponsorship? ACKNOWLEDGMENTS This research work was supported by the Estonian Research Council under the personal research grants PUT1063 (I. Hussainova) and DoRa+ program.en_US
dc.identifier.doi10.1021/acsomega.2c076605003ACS
dc.identifier.endpage5016en_US
dc.identifier.issn2470-1343
dc.identifier.issue5en_US
dc.identifier.pmid36777622en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage5003en_US
dc.identifier.urihttps://doi.org/10.1021/acsomega.2c076605003ACS
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12738
dc.identifier.volume8en_US
dc.identifier.wosWOS:000923443300001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofAcs Omegaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subject[Keyword Not Available]en_US
dc.titleFunctionality and Activity of Sol-Gel-Prepared Co and Fe co-Doped Lead-Free BTO for Thermo-Optical Applicationsen_US
dc.typeArticleen_US

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