Experimental and theoretical investigation of the electronic structure of Cu2O and CuO thin films on Cu(110) using x-ray photoelectron and absorption spectroscopy

dc.creatorJiang, Peng
dc.creatorPrendergast, David
dc.creatorBorondics, Ferenc
dc.creatorPorsgaard, Soeren
dc.creatorGiovanetti, Lisandro José
dc.creatorPach, Elzbieta
dc.creatorNewberg, John
dc.creatorBluhm, Hendrik
dc.creatorBesenbacher, Flemming
dc.creatorSalmeron, Miquel
dc.date2013-01
dc.date2020-05-27T16:24:34Z
dc.date.accessioned2023-07-14T20:06:47Z
dc.date.available2023-07-14T20:06:47Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/96803
dc.identifierhttps://ri.conicet.gov.ar/11336/82185
dc.identifierhttps://aip.scitation.org/doi/abs/10.1063/1.4773583
dc.identifierissn:0021-9606
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7437951
dc.descriptionThe electronic structure of Cu2O and CuO thin films grown on Cu(110) was characterized by X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS). The various oxidation states, Cu0, Cu+, and Cu2+, were unambiguously identified and characterized from their XPS and XAS spectra. We show that a clean and stoichiometric surface of CuO requires special environmental conditions to prevent loss of oxygen and contamination by background water. First-principles density functional theory XAS simulations of the oxygen K edge provide understanding of the core to valence transitions in Cu+ and Cu 2+. A novel method to reference x-ray absorption energies based on the energies of isolated atoms is presented.
dc.descriptionInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectFísica
dc.subjectQuímica
dc.subjectAb initio calculations
dc.subjectDensity functional theory
dc.subjectCopper compounds
dc.subjectElectronic structure
dc.subjectOxidation
dc.subjectStoichiometry
dc.subjectThin films
dc.subjectX-ray absorption spectra
dc.subjectX-ray photoelectron spectra
dc.titleExperimental and theoretical investigation of the electronic structure of Cu2O and CuO thin films on Cu(110) using x-ray photoelectron and absorption spectroscopy
dc.typeArticulo
dc.typeArticulo


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