Optical properties of Zn0.75Mg0.25O:Mn ceramics

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dc.contributor.authorMarkevich, I.
dc.contributor.authorKorsunska, N.
dc.contributor.authorStara, T.
dc.contributor.authorPolishchuk, Yu.
dc.contributor.authorVorona, I.
dc.contributor.authorKozoriz, K.
dc.contributor.authorPonomaryov, S.
dc.contributor.authorMelnichuk, O.
dc.contributor.authorMelnichuk, L.
dc.contributor.authorCremades, A.
dc.contributor.authorKhomenkova, Larysa
dc.date.accessioned2023-10-06T10:40:41Z
dc.date.available2023-10-06T10:40:41Z
dc.date.issued2023
dc.description.abstractMn-doped ZnO, MgO and Zn0.75Mg0.25O samples ([Mn] = 0.1 at.%) were produced by conventional solid-state technique and investigated by means of XRD, EPR, absorption, photocurrent, photo- and cathodoluminescence methods. It was shown that Zn0.75Mg0.25O solid solution with hexagonal structure has the bandgap of Eg ~3.65 eV. The quenching of host defect-related luminescence in ZnO:Mn and in hexagonal Zn0.75Mg0.25O:Mn was observed, while the Mn-related emission being absent. The energy level of Mn2Z+n center in hexagonal Zn0.75Mg0.25O:Mn was found to be at 2.16 eV below conduction band (c-band) bottom and all excited states of Mn2Z+n ions, including the lowest one, reside in c-band, as it takes place in ZnO:Mn. It is concluded that the necessary condition to obtain Mn-related light emission in Mn-doped alloys is to make deeper the lowest excited level of Mn2Z+n ions. One of the solutions is to produce Zn1-xMgxO:Mn solid solution with the bandgap energy larger than 4.0 eV using nonequilibrium fabrication approaches.en_US
dc.identifier.citationOptical properties of Zn0.75Mg0.25O:Mn ceramics / I. Markevich, N. Korsunska, T. Stara, Yu. Polishchuk, I. Vorona, K. Kozoriz, S. Ponomaryov, O. Melnichuk, L. Melnichuk, A. Cremades, L. Khomenkova // Optical Materials. - 2023. - Vol. 143. - Article number 114273. - https://doi.org/10.1016/j.optmat.2023.114273en_US
dc.identifier.issn0925-3467
dc.identifier.urihttps://doi.org/10.1016/j.optmat.2023.114273
dc.identifier.urihttps://ekmair.ukma.edu.ua/handle/123456789/26342
dc.language.isoenen_US
dc.relation.sourceOptical Materialsen_US
dc.statusfirst publisheduk_UA
dc.subjectceramicsen_US
dc.subjectoxidesen_US
dc.subjectluminescenceen_US
dc.subjectX-ray diffractionen_US
dc.subjectElectron spin resonanceen_US
dc.subjectarticleen_US
dc.titleOptical properties of Zn0.75Mg0.25O:Mn ceramicsen_US
dc.typeArticleuk_UA
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