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Ligand field parameters, optical, thermal, magnetic, and structural features of ZnO containing cobalt-borate glasses by Afaf M. Babeer; Abd El-razek Mahmoud; H.Y. Morshidy is a Materials Science article available to read on EtoBox.

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This article presents a study of cobalt speciation in borate glass samples, with up to 20 mol. %. of zinc oxide. The samples were prepared by the melt-quenching method. The glass properties were presented utilizing a set of complementary investigations of all samples to evaluate structural, optical, thermal, and magnetic properties. XRD technique was exploited to scrutinize the structural nature of samples. Macrostructural modifications were demonstrated using Archimedes’ principle. FT-IR was utilized to probe the internal components of the glass network. Thermograms analysis was used to determine the thermal stability of the samples, which is required for applications. Optical band gap energy was decreased while the Urbach energy was enhanced. Using ligand field theory of cobalt ions, the optical absorption transitions were studied of CO2+ ions. Astonishingly, the usability of ligand field theory to evaluate the optical parameters was presented, in addition to their relation to the structural changes was demonstrated. Non-linearity aspects were enhanced with ZnO addition. Finally, ESR signals confirmed the existence of CO2+ ions in octahedral and tetrahedral symmetry, with a possi

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Author

Afaf M. Babeer; Abd El-razek Mahmoud; H.Y. Morshidy

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)