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dc.date.accessioned 2020-06-01T13:38:18Z
dc.date.available 2020-06-01T13:38:18Z
dc.date.issued 2016-12-29
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/97163
dc.description.abstract The structural, morphological and optical properties of manganese oxides supported on commercial ZnO,prepared by impregnation with manganese nitrate, were investigated. The nominal compositions of Mnin the samples were 5, 10, 15 and 20%w/w.The X-ray diffraction (XRD) experiments revealed the presenceof the ZnO wurtzite phase in all the samples, and ZnMnO3 was also found in the samples with 15 wt% and20 wt% of Mn. X-ray photoelectron spectroscopy (XPS) showed the presence of Mn2þ and Mn4þ in thexMnZnO samples. The results showed that the Mn2þ ions had substituted the Zn2þ ions withoutchanging the wurtzite structure of ZnO, while Mn4þ might be assigned to the ZnMnO3 impurity phase.The optical band gap was found to be 3.3 eV for undoped ZnO samples and 3.10 eV for Mn-dopedsamples. The lattice defect distribution was investigated using the positron annihilation method. Theresults revealed that the average lifetime is a function of the Mn concentration and the formation of theZnMnO3 phase en
dc.format.extent 416-424 es
dc.language en es
dc.subject Mn - ZnO es
dc.subject Structural properties es
dc.subject Optical properties es
dc.subject XPS es
dc.subject Band gap energy es
dc.title Structural and optical properties of ZnO and manganese-doped ZnO en
dc.type Articulo es
sedici.identifier.uri https://ri.conicet.gov.ar/11336/42024 es
sedici.identifier.other http://dx.doi.org/10.1016/j.jallcom.2016.07.283 es
sedici.identifier.other hdl:11336/42024 es
sedici.identifier.issn 0925-8388 es
sedici.creator.person Gallegos, María Victoria es
sedici.creator.person Peluso, Andrés es
sedici.creator.person Thomas, Horacio Jorge es
sedici.creator.person Sambeth, Jorge Enrique es
sedici.creator.person Damonte, Laura Cristina es
sedici.subject.materias Química es
sedici.description.fulltext true es
mods.originInfo.place Centro de Investigación y Desarrollo en Ciencias Aplicadas es
mods.originInfo.place Instituto de Física La Plata es
mods.originInfo.place Laboratorio de Servicios a la Industria y al Sistema Científico es
sedici.subtype Preprint es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Journal of Alloys and Compounds es
sedici.relation.journalVolumeAndIssue vol. 689 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)