Influence of rare-earth ion doping on dielectric properties of lithium zinc borate glasses

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dc.contributor.authorAnjaiah, J.
dc.contributor.authorLaxmikanth, C.
dc.contributor.authorMwanga, Stanley Ferdinand
dc.contributor.authorRaju, P.
dc.contributor.authorShankar, J.
dc.contributor.authorRani, G. Neeraja
dc.contributor.authorMwankemwa, Benard
dc.contributor.authorAli, S, K. M.
dc.date.accessioned2023-05-23T13:21:58Z
dc.date.available2023-05-23T13:21:58Z
dc.date.issued2022
dc.descriptionAbstract. Full text article available at https://doi.org/10.1016/j.optmat.2022.112718en_US
dc.description.abstractThe dielectric constant (ε′), loss factor (tanδ), and ac conductivity (σac) of 30 Li2O-10 ZnO-(60-x) B2O3: xLn2O3, where (x = 0 and 1) and (Ln = Pr, Nd, Sm, and Eu) were investigated using a frequency range of 102–105 Hz and temperature ranging from 30 to 250 °C in this work. Differential Scanning Calorimetry (DSC) technique was employed to confirm the glassy nature of the materials under study. The dielectric parameters ε′, tanδ, and σac rise when rare-earth ions are added to the glass matrix at any frequency or temperature. Dielectric breakdown and activation energies are lower in doped than in undoped glasses while ac current flows through them at room temperature. Rare-earth ion doping's dielectric parameter values decrease with temperature as atomic number (Z) rises. The dielectric parameter values for the Pr3+ doped glass matrix are the highest. QM tunnelling model was used to describe the ac conduction behaviour of these glasses.en_US
dc.identifier.citationAnjaiah, J., Laxmikanth, C., Mwanga, S. F., Raju, P., Ali, S. M., Shankar, J., & Mwankemwa, B. (2022). Influence of rare-earth ion doping on dielectric properties of lithium zinc borate glasses. Optical Materials, 131, 112718.en_US
dc.identifier.otherDOI: https://doi.org/10.1016/j.optmat.2022.112718
dc.identifier.urihttp://hdl.handle.net/20.500.12661/3871
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectDielectric constanten_US
dc.subjectLoss factoren_US
dc.subjectAc conductivityen_US
dc.subjectDifferential Scanning Calorimetryen_US
dc.subjectDSCen_US
dc.subjectDielectric parametersen_US
dc.subjectRare-earth ionen_US
dc.subjectDielectric propertiesen_US
dc.titleInfluence of rare-earth ion doping on dielectric properties of lithium zinc borate glassesen_US
dc.typeArticleen_US
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