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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.citation	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.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.subject	Electroquímica
dc.subject	Nanoestructures
dc.title	Cathodoluminescence characterization of ZnO/ZnS nanostructures anodized under hydrodynamic conditions
dc.type	journal article	es_ES
dc.date.updated	2021-01-08T16:23:58Z
dc.identifier.doi	10.1016/j.electacta.2018.03.046
dc.identifier.idgrec	140775
dc.rights.accessRights	open access	es_ES