Influence of compacting pressure on the electrical properties of ZnO and ZnO:Mn ceramics

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dc.contributor.authorKorsunska, N.
dc.contributor.authorMarkevich, Iryna
dc.contributor.authorStara, T.
dc.contributor.authorPolishchuk, Yu.
dc.contributor.authorPonomaryov, S.
dc.contributor.authorKozoriz, K.
dc.contributor.authorTsybrii, Zinoviia
dc.contributor.authorMelnichuk, O.
dc.contributor.authorMelnichuk, L.
dc.contributor.authorVenger, E.
dc.contributor.authorKhomenkova, Larysa
dc.date.accessioned2024-07-09T06:15:39Z
dc.date.available2024-07-09T06:15:39Z
dc.date.issued2024
dc.description.abstractUndoped and Mn-doped ZnO ceramics were prepared from the powders compacted at different pressures and sintered in air at high temperature. Their structural, optical, light emitting and electrical characteristics as well as the distribution of chemical elements were studied. It was found that an increase in compacting pressure stimulates an increase in direct current conductivity in both undoped and doped samples. In the case of doped samples, this effect was accompanied by a decrease in the height of potential barriers at the grain boundaries. It is found that electron concentration in ceramic grains, estimated from the modelling of infrared reflection spectra, remained relatively constant. The analysis of luminescence spectra and spatial zinc distribution revealed that the increase in compacting pressure results in the accumulation of interstitial zinc at the grain boundaries forming channels with enhanced conductivity. These findings provide an explanation for the evolution of electrical properties of ceramic samples with compacting pressure.en_US
dc.identifier.citationInfluence of compacting pressure on the electrical properties of ZnO and ZnO:Mn ceramics / N. Korsunska, I. Markevich, T. Stara, Yu. Polishchuk, S. Ponomaryov, K. Kozoriz, Z. Tsybrii, O. Melnichuk, L. Melnichuk, E. Venger, L. Khomenkova // Discover Applied Sciences. - 2024. - Vol. 6, Issue 3. - Art. no. 74. - https://doi.org/10.1007/s42452-024-05722-7en_US
dc.identifier.urihttps://doi.org/10.1007/s42452-024-05722-7
dc.identifier.urihttps://ekmair.ukma.edu.ua/handle/123456789/30339
dc.language.isoenen_US
dc.relation.sourceDiscover Applied Sciencesen_US
dc.statusfirst publisheduk_UA
dc.subjectZnOen_US
dc.subjectmanganeseen_US
dc.subjectceramicsen_US
dc.subjectelectrical propertiesen_US
dc.subjectgrain boundariesen_US
dc.subjectsegregationen_US
dc.subjectXRDen_US
dc.subjectauger spectroscopyen_US
dc.subjectscanning electron microscopyen_US
dc.subjectinfrared reflection spectroscopyen_US
dc.subjectarticleen_US
dc.titleInfluence of compacting pressure on the electrical properties of ZnO and ZnO:Mn ceramicsen_US
dc.typeArticleuk_UA
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