Electron energy-loss spectroscopy of V2O5 nanofibers synthesized by electro-spinning

The dielectric properties of V2O5 nanofibers, synthesized by the electrospinning method, are studied by analyzing the low-loss region of the electron energy loss spectroscopy (EELS) in a transmission electron microscope. A comparison of experimental EELS spectra and ab initio density-functional theo...

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Detalhes bibliográficos
Autores: MARTHA TERESITA OCHOA LARA, FRANCISCO ESPINOSA MAGAÑA
Tipo de documento: artigo
Estado:Versión enviada para evaluación y publicación
Data de publicação:2013
País:México
Recursos:Centro de Investigación en Materiales Avanzados
Repositório:Fuente de Objetos Científicos Open Access del CIMAV
Idioma:inglês
OAI Identifier:oai:cimav.repositorioinstitucional.mx:1004/1166
Acesso em linha:http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1166
Access Level:Acceso aberto
Palavra-chave:info:eu-repo/classification/Ab initio/EELS
info:eu-repo/classification/V2O5/Dielectric function
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
id MX_e1ddca05e25e469a1e5dfcd0f9b4adcc
oai_identifier_str oai:cimav.repositorioinstitucional.mx:1004/1166
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network_name_str México
repository_id_str
spelling Electron energy-loss spectroscopy of V2O5 nanofibers synthesized by electro-spinningMARTHA TERESITA OCHOA LARAFRANCISCO ESPINOSA MAGAÑAinfo:eu-repo/classification/Ab initio/EELSinfo:eu-repo/classification/V2O5/Dielectric functioninfo:eu-repo/classification/cti/1info:eu-repo/classification/cti/22info:eu-repo/classification/cti/2299info:eu-repo/classification/cti/229999info:eu-repo/classification/cti/229999The dielectric properties of V2O5 nanofibers, synthesized by the electrospinning method, are studied by analyzing the low-loss region of the electron energy loss spectroscopy (EELS) in a transmission electron microscope. A comparison of experimental EELS spectra and ab initio density-functional theory calcula-tions (WIEN2k code) within the Generalized Gradient Approximation (GGA) is presented, having found an excellent agreement between them. Although the experimental EELS has been acquired for the nanopar-ticles composing the fibers, and numerical calculations were carried out for bulk material, agreement between experimental and calculated results shows that no difference exists between the electronic structure in calculated bulk material and the nanoparticles. Furthermore, our results from EELS confirm that we accomplished the expected crystalline phase. The origins of interband transitions are identified in the electronic band structure by calculating the partial imaginary part of the dielectric function and the partial density of states.2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://cimav.repositorioinstitucional.mx/jspui/handle/1004/1166reponame:Fuente de Objetos Científicos Open Access del CIMAVinstname:Centro de Investigación en Materiales Avanzadosinstacron:CIMAVenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/about/cc0/oai:cimav.repositorioinstitucional.mx:1004/11662024-08-28T03:19:01Z
dc.title.none.fl_str_mv Electron energy-loss spectroscopy of V2O5 nanofibers synthesized by electro-spinning
title Electron energy-loss spectroscopy of V2O5 nanofibers synthesized by electro-spinning
spellingShingle Electron energy-loss spectroscopy of V2O5 nanofibers synthesized by electro-spinning
MARTHA TERESITA OCHOA LARA
info:eu-repo/classification/Ab initio/EELS
info:eu-repo/classification/V2O5/Dielectric function
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
title_short Electron energy-loss spectroscopy of V2O5 nanofibers synthesized by electro-spinning
title_full Electron energy-loss spectroscopy of V2O5 nanofibers synthesized by electro-spinning
title_fullStr Electron energy-loss spectroscopy of V2O5 nanofibers synthesized by electro-spinning
title_full_unstemmed Electron energy-loss spectroscopy of V2O5 nanofibers synthesized by electro-spinning
title_sort Electron energy-loss spectroscopy of V2O5 nanofibers synthesized by electro-spinning
dc.creator.none.fl_str_mv MARTHA TERESITA OCHOA LARA
FRANCISCO ESPINOSA MAGAÑA
author MARTHA TERESITA OCHOA LARA
author_facet MARTHA TERESITA OCHOA LARA
FRANCISCO ESPINOSA MAGAÑA
author_role author
author2 FRANCISCO ESPINOSA MAGAÑA
author2_role author
dc.subject.none.fl_str_mv info:eu-repo/classification/Ab initio/EELS
info:eu-repo/classification/V2O5/Dielectric function
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
topic info:eu-repo/classification/Ab initio/EELS
info:eu-repo/classification/V2O5/Dielectric function
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/22
info:eu-repo/classification/cti/2299
info:eu-repo/classification/cti/229999
info:eu-repo/classification/cti/229999
description The dielectric properties of V2O5 nanofibers, synthesized by the electrospinning method, are studied by analyzing the low-loss region of the electron energy loss spectroscopy (EELS) in a transmission electron microscope. A comparison of experimental EELS spectra and ab initio density-functional theory calcula-tions (WIEN2k code) within the Generalized Gradient Approximation (GGA) is presented, having found an excellent agreement between them. Although the experimental EELS has been acquired for the nanopar-ticles composing the fibers, and numerical calculations were carried out for bulk material, agreement between experimental and calculated results shows that no difference exists between the electronic structure in calculated bulk material and the nanoparticles. Furthermore, our results from EELS confirm that we accomplished the expected crystalline phase. The origins of interband transitions are identified in the electronic band structure by calculating the partial imaginary part of the dielectric function and the partial density of states.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1166
url http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1166
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/about/cc0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/about/cc0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Fuente de Objetos Científicos Open Access del CIMAV
instname:Centro de Investigación en Materiales Avanzados
instacron:CIMAV
instname_str Centro de Investigación en Materiales Avanzados
instacron_str CIMAV
institution CIMAV
reponame_str Fuente de Objetos Científicos Open Access del CIMAV
collection Fuente de Objetos Científicos Open Access del CIMAV
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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