Cathodoluminescence characterization of ZnO/ZnS nanostructures anodized under hydrodynamic conditions
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Cathodoluminescence characterization of ZnO/ZnS nanostructures anodized under hydrodynamic conditions

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Cathodoluminescence characterization of ZnO/ZnS nanostructures anodized under hydrodynamic conditions

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dc.contributor.author Sanz Marco, Amparo
dc.contributor.author Sánchez Tovar, Rita
dc.contributor.author Montes Bajo, Miguel
dc.contributor.author Fernández Domene, Ramón Manuel
dc.contributor.author Garcia-Anton, Jose
dc.date.accessioned 2021-01-08T16:23:57Z
dc.date.available 2021-01-08T16:23:57Z
dc.date.issued 2018
dc.identifier.uri https://hdl.handle.net/10550/76920
dc.description.abstract ZnO/ZnS nanostructures were successfully synthesized by a simple electrochemical anodization of zinc in a glycerol based electrolyte containing sulfide-ammonium fluoride. The influence of different hydrodynamic conditions and anodization potentials during anodization on the morphological and electronic properties of the obtained ZnO/ZnS nanostructures was studied. The anodized samples were characterized using confocal Raman microscopy, X-Ray Diffraction (XRD), Field Emission Scanning Electronic Microscopy (FE-SEM), cathodoluminescence (CL), and photoelectrochemical water splitting tests under standard AM 1.5 conditions. The results showed that hydrodynamic conditions and higher potentials promoted the formation of ZnO/ZnS nanotubes with both higher sulphur content and crystalline defect density, which reduces the near band edge transition value of the materials and improves the photoelectrochemical activity for water splitting. Additionally, the higher photocurrent densities for water splitting were obtained for the samples anodized at the highest anodization potential and under hydrodynamic conditions, increasing in a 71% for the nanostructures anodized at 1000 rpm when the anodization potential changes from 20 to 40 V.
dc.language.iso eng
dc.relation.ispartof Electrochimica Acta, 2018, vol. 269, p. 553-559
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Sanz Marco, Amparo Sánchez Tovar, Rita Montes Bajo, Miguel Fernández Domene, Ramón Manuel Garcia-Anton, Jose 2018 Cathodoluminescence characterization of ZnO/ZnS nanostructures anodized under hydrodynamic conditions Electrochimica Acta 269 553 559
dc.subject Electroquímica
dc.subject Nanoestructures
dc.title Cathodoluminescence characterization of ZnO/ZnS nanostructures anodized under hydrodynamic conditions
dc.type info:eu-repo/semantics/article
dc.date.updated 2021-01-08T16:23:58Z
dc.identifier.doi https://doi.org/10.1016/j.electacta.2018.03.046
dc.identifier.idgrec 140775

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