Structural and magnetic characterization of oleic acid and oleylamine-capped gold nanoparticles

In this work the study of oleic acid and oleylamine-capped gold nanoparticles is presented. The structural characterization of the sample shows 6.7 nm gold nanoparticles with a narrow size distribution. The experimental optical absorption spectrum has a maximum at 2.35 eV. The calculated optical abs...

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Detalles Bibliográficos
Autores: Presa Muñoz De Toro, Patricia Marcela De La, Multigner, M., Venta,, J. de la, García, M. A., Ruiz González, María Luisa
Tipo de recurso: artículo
Fecha de publicación:2006
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/52152
Acceso en línea:https://hdl.handle.net/20.500.14352/52152
Access Level:acceso abierto
Palabra clave:538.9
Self-assembled monolayers
Nanocrystals
Biomedicine
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
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oai_identifier_str oai:docta.ucm.es:20.500.14352/52152
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network_name_str España
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spelling Structural and magnetic characterization of oleic acid and oleylamine-capped gold nanoparticlesPresa Muñoz De Toro, Patricia Marcela De LaMultigner, M.Venta,, J. de laGarcía, M. A.Ruiz González, María Luisa538.9Self-assembled monolayersNanocrystalsBiomedicineFísica de materialesFísica del estado sólido2211 Física del Estado SólidoIn this work the study of oleic acid and oleylamine-capped gold nanoparticles is presented. The structural characterization of the sample shows 6.7 nm gold nanoparticles with a narrow size distribution. The experimental optical absorption spectrum has a maximum at 2.35 eV. The calculated optical absorption spectrum is shifted and narrower than the experimental one, indicating that the oleic acid and oleylamine do not merely passivate the metallic nanoparticles but modify its electronic structure. These gold nanoparticles show in addition a kind of magnetic order similar to other organic passivated gold nanoparticles as thiol-capped gold nanoparticles. Although the magnetic interactions seem to be weaker than in thiol-capped ones, the magnetic behavior looks similar to that, i.e., an invariant temperature dependence of the magnetization from 5 to 300 K and a noticeable coercive field. We analyze the influence of the organic layer bonding the nanoparticles on the magnetic behavior.American Institute of PhysicsUniversidad Complutense de Madrid20062006-12-1520062006-12-15journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/52152reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/521522026-06-02T12:44:21Z
dc.title.none.fl_str_mv Structural and magnetic characterization of oleic acid and oleylamine-capped gold nanoparticles
title Structural and magnetic characterization of oleic acid and oleylamine-capped gold nanoparticles
spellingShingle Structural and magnetic characterization of oleic acid and oleylamine-capped gold nanoparticles
Presa Muñoz De Toro, Patricia Marcela De La
538.9
Self-assembled monolayers
Nanocrystals
Biomedicine
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
title_short Structural and magnetic characterization of oleic acid and oleylamine-capped gold nanoparticles
title_full Structural and magnetic characterization of oleic acid and oleylamine-capped gold nanoparticles
title_fullStr Structural and magnetic characterization of oleic acid and oleylamine-capped gold nanoparticles
title_full_unstemmed Structural and magnetic characterization of oleic acid and oleylamine-capped gold nanoparticles
title_sort Structural and magnetic characterization of oleic acid and oleylamine-capped gold nanoparticles
dc.creator.none.fl_str_mv Presa Muñoz De Toro, Patricia Marcela De La
Multigner, M.
Venta,, J. de la
García, M. A.
Ruiz González, María Luisa
author Presa Muñoz De Toro, Patricia Marcela De La
author_facet Presa Muñoz De Toro, Patricia Marcela De La
Multigner, M.
Venta,, J. de la
García, M. A.
Ruiz González, María Luisa
author_role author
author2 Multigner, M.
Venta,, J. de la
García, M. A.
Ruiz González, María Luisa
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 538.9
Self-assembled monolayers
Nanocrystals
Biomedicine
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
topic 538.9
Self-assembled monolayers
Nanocrystals
Biomedicine
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
description In this work the study of oleic acid and oleylamine-capped gold nanoparticles is presented. The structural characterization of the sample shows 6.7 nm gold nanoparticles with a narrow size distribution. The experimental optical absorption spectrum has a maximum at 2.35 eV. The calculated optical absorption spectrum is shifted and narrower than the experimental one, indicating that the oleic acid and oleylamine do not merely passivate the metallic nanoparticles but modify its electronic structure. These gold nanoparticles show in addition a kind of magnetic order similar to other organic passivated gold nanoparticles as thiol-capped gold nanoparticles. Although the magnetic interactions seem to be weaker than in thiol-capped ones, the magnetic behavior looks similar to that, i.e., an invariant temperature dependence of the magnetization from 5 to 300 K and a noticeable coercive field. We analyze the influence of the organic layer bonding the nanoparticles on the magnetic behavior.
publishDate 2006
dc.date.none.fl_str_mv 2006
2006-12-15
2006
2006-12-15
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/52152
url https://hdl.handle.net/20.500.14352/52152
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,298079

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