Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons

Autores
Ferron, Julio; Vidal, Ricardo Alberto; Bajales Luna, Noelia; Cristina, Lucila Josefina; Baragiola, R. A.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present results of secondary electron emission (SEE) induced by UV photons and low energy He ions interacting with a pristine and ion damaged surface of highly-oriented pyrolytic graphite (HOPG). A critical examination of the changes in the SEE spectra produced by the radiation damage allows us to identify the origin of the different features of the SEE spectra. In this way,we conclude that the lowenergy peak at ~3 eV is strongly determined by the structure of the (empty) HOPG density of states above vacuum level. In contrast the highenergy structure at ~14 eV could not be explained by such an argument but rather by exciton autoionization.
Fil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Bajales Luna, Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Física "enrique Gaviola"; Argentina
Fil: Cristina, Lucila Josefina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Fil: Baragiola, R. A.. University Of Virginia; Estados Unidos
Materia
Electron Emission
Graphite
Ion-Solid Interactions
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/11568
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photonsFerron, JulioVidal, Ricardo AlbertoBajales Luna, NoeliaCristina, Lucila JosefinaBaragiola, R. A.Electron EmissionGraphiteIon-Solid Interactionshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present results of secondary electron emission (SEE) induced by UV photons and low energy He ions interacting with a pristine and ion damaged surface of highly-oriented pyrolytic graphite (HOPG). A critical examination of the changes in the SEE spectra produced by the radiation damage allows us to identify the origin of the different features of the SEE spectra. In this way,we conclude that the lowenergy peak at ~3 eV is strongly determined by the structure of the (empty) HOPG density of states above vacuum level. In contrast the highenergy structure at ~14 eV could not be explained by such an argument but rather by exciton autoionization.Fil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaFil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaFil: Bajales Luna, Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Física "enrique Gaviola"; ArgentinaFil: Cristina, Lucila Josefina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); ArgentinaFil: Baragiola, R. A.. University Of Virginia; Estados UnidosElsevier Science2014-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11568Ferron, Julio; Vidal, Ricardo Alberto; Bajales Luna, Noelia; Cristina, Lucila Josefina; Baragiola, R. A.; Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons; Elsevier Science; Surface Science; 622; 4-2014; 83-860039-6028enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0039602813003701info:eu-repo/semantics/altIdentifier/doi/10.1016/j.susc.2013.12.010info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:10Zoai:ri.conicet.gov.ar:11336/11568instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:56:11.145CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons
title Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons
spellingShingle Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons
Ferron, Julio
Electron Emission
Graphite
Ion-Solid Interactions
title_short Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons
title_full Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons
title_fullStr Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons
title_full_unstemmed Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons
title_sort Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons
dc.creator.none.fl_str_mv Ferron, Julio
Vidal, Ricardo Alberto
Bajales Luna, Noelia
Cristina, Lucila Josefina
Baragiola, R. A.
author Ferron, Julio
author_facet Ferron, Julio
Vidal, Ricardo Alberto
Bajales Luna, Noelia
Cristina, Lucila Josefina
Baragiola, R. A.
author_role author
author2 Vidal, Ricardo Alberto
Bajales Luna, Noelia
Cristina, Lucila Josefina
Baragiola, R. A.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Electron Emission
Graphite
Ion-Solid Interactions
topic Electron Emission
Graphite
Ion-Solid Interactions
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present results of secondary electron emission (SEE) induced by UV photons and low energy He ions interacting with a pristine and ion damaged surface of highly-oriented pyrolytic graphite (HOPG). A critical examination of the changes in the SEE spectra produced by the radiation damage allows us to identify the origin of the different features of the SEE spectra. In this way,we conclude that the lowenergy peak at ~3 eV is strongly determined by the structure of the (empty) HOPG density of states above vacuum level. In contrast the highenergy structure at ~14 eV could not be explained by such an argument but rather by exciton autoionization.
Fil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Bajales Luna, Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto de Física "enrique Gaviola"; Argentina
Fil: Cristina, Lucila Josefina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
Fil: Baragiola, R. A.. University Of Virginia; Estados Unidos
description We present results of secondary electron emission (SEE) induced by UV photons and low energy He ions interacting with a pristine and ion damaged surface of highly-oriented pyrolytic graphite (HOPG). A critical examination of the changes in the SEE spectra produced by the radiation damage allows us to identify the origin of the different features of the SEE spectra. In this way,we conclude that the lowenergy peak at ~3 eV is strongly determined by the structure of the (empty) HOPG density of states above vacuum level. In contrast the highenergy structure at ~14 eV could not be explained by such an argument but rather by exciton autoionization.
publishDate 2014
dc.date.none.fl_str_mv 2014-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/11568
Ferron, Julio; Vidal, Ricardo Alberto; Bajales Luna, Noelia; Cristina, Lucila Josefina; Baragiola, R. A.; Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons; Elsevier Science; Surface Science; 622; 4-2014; 83-86
0039-6028
url http://hdl.handle.net/11336/11568
identifier_str_mv Ferron, Julio; Vidal, Ricardo Alberto; Bajales Luna, Noelia; Cristina, Lucila Josefina; Baragiola, R. A.; Role of HOPG density of empty electronic states above vacuum on electron emission spectra induced by ions and UV photons; Elsevier Science; Surface Science; 622; 4-2014; 83-86
0039-6028
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0039602813003701
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.susc.2013.12.010
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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