Experimental and theoretical investigation of the electronic structure of Cu2O and CuO thin films on Cu(110) using x-ray photoelectron and absorption spectroscopy
The 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....
Guardado en:
| Autores principales: | , , , , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2013
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/96803 https://ri.conicet.gov.ar/11336/82185 https://aip.scitation.org/doi/abs/10.1063/1.4773583 |
| Aporte de: |
| id |
I19-R120-10915-96803 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Física Química Ab initio calculations Density functional theory Copper compounds Electronic structure Oxidation Stoichiometry Thin films X-ray absorption spectra X-ray photoelectron spectra |
| spellingShingle |
Física Química Ab initio calculations Density functional theory Copper compounds Electronic structure Oxidation Stoichiometry Thin films X-ray absorption spectra X-ray photoelectron spectra Jiang, Peng Prendergast, David Borondics, Ferenc Porsgaard, Soeren Giovanetti, Lisandro José Pach, Elzbieta Newberg, John Bluhm, Hendrik Besenbacher, Flemming Salmeron, Miquel Experimental and theoretical investigation of the electronic structure of Cu2O and CuO thin films on Cu(110) using x-ray photoelectron and absorption spectroscopy |
| topic_facet |
Física Química Ab initio calculations Density functional theory Copper compounds Electronic structure Oxidation Stoichiometry Thin films X-ray absorption spectra X-ray photoelectron spectra |
| description |
The 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. |
| format |
Articulo Articulo |
| author |
Jiang, Peng Prendergast, David Borondics, Ferenc Porsgaard, Soeren Giovanetti, Lisandro José Pach, Elzbieta Newberg, John Bluhm, Hendrik Besenbacher, Flemming Salmeron, Miquel |
| author_facet |
Jiang, Peng Prendergast, David Borondics, Ferenc Porsgaard, Soeren Giovanetti, Lisandro José Pach, Elzbieta Newberg, John Bluhm, Hendrik Besenbacher, Flemming Salmeron, Miquel |
| author_sort |
Jiang, Peng |
| title |
Experimental and theoretical investigation of the electronic structure of Cu2O and CuO thin films on Cu(110) using x-ray photoelectron and absorption spectroscopy |
| title_short |
Experimental and theoretical investigation of the electronic structure of Cu2O and CuO thin films on Cu(110) using x-ray photoelectron and absorption spectroscopy |
| title_full |
Experimental and theoretical investigation of the electronic structure of Cu2O and CuO thin films on Cu(110) using x-ray photoelectron and absorption spectroscopy |
| title_fullStr |
Experimental and theoretical investigation of the electronic structure of Cu2O and CuO thin films on Cu(110) using x-ray photoelectron and absorption spectroscopy |
| title_full_unstemmed |
Experimental and theoretical investigation of the electronic structure of Cu2O and CuO thin films on Cu(110) using x-ray photoelectron and absorption spectroscopy |
| title_sort |
experimental and theoretical investigation of the electronic structure of cu2o and cuo thin films on cu(110) using x-ray photoelectron and absorption spectroscopy |
| publishDate |
2013 |
| url |
http://sedici.unlp.edu.ar/handle/10915/96803 https://ri.conicet.gov.ar/11336/82185 https://aip.scitation.org/doi/abs/10.1063/1.4773583 |
| work_keys_str_mv |
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Repositorios |
| _version_ |
1764820492466782211 |