Adsorption of gold nanoparticles on silicon substrate and their application in Surface Enhancement Raman Scattering

Gold nanoparticles were synthesized by using sodium citrate and they were deposited on silicon wafer by immersion and by solvent evapora- tion methods. Silicon wafers was functionalized for the first method and a template of colloidal silica was used in the second one. Scanning electron microscopy s...

Descripción completa

Detalles Bibliográficos
Autores: F. Castillo, E. Pérez, E. de la Rosa
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:México
Institución:Universidad Autónoma de San Luis Potosí
Repositorio:Redalyc-UASLP
OAI Identifier:oai:redalyc.org:57030389014
Acceso en línea:https://www.redalyc.org/articulo.oa?id=57030389014
Access Level:acceso abierto
Palabra clave:Física, Astronomía y Matemáticas
SERS
Keywords
plasmons
gold nanoparticles
id MX_5df41c1917468b20fdd2e573933aad32
oai_identifier_str oai:redalyc.org:57030389014
network_acronym_str MX
network_name_str México
repository_id_str
spelling Adsorption of gold nanoparticles on silicon substrate and their application in Surface Enhancement Raman ScatteringF. CastilloE. PérezE. de la RosaFísica, Astronomía y MatemáticasSERSKeywordsplasmonsgold nanoparticlesGold nanoparticles were synthesized by using sodium citrate and they were deposited on silicon wafer by immersion and by solvent evapora- tion methods. Silicon wafers was functionalized for the first method and a template of colloidal silica was used in the second one. Scanning electron microscopy shows a homogeneous distribution of nanoparticles on the surface for the immersion method and a self-assembly of gold nanoparticles forming clusters with different sizes in the solvent evaporation one. Rhodamine 6G at concentrations as lower as 10 ° 7 M was used to characterize the Surface Enhanced Raman scattering on surfaces prepared by both methods. The largest enhancement of Raman signal was observed for those substrates prepared by solvent evaporation where clusters were formed. Such enhancement is attributed to the intense electromagnetic field produced by plasmon resonance of gold nanoparticles deposited on a surface.Sociedad Mexicana de Física A.C.2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdf0035-001Xhttps://www.redalyc.org/articulo.oa?id=57030389014Revista Mexicana de Física (México) Num.2 Vol.57reponame:Redalyc-UASLPinstname:Universidad Autónoma de San Luis Potosíinstacron:UASLPenhttp://www.redalyc.org/revista.oa?id=570Revista Mexicana de Físicainfo:eu-repo/semantics/openAccessoai:redalyc.org:570303890142024-08-23T15:33:46Z
dc.title.none.fl_str_mv Adsorption of gold nanoparticles on silicon substrate and their application in Surface Enhancement Raman Scattering
title Adsorption of gold nanoparticles on silicon substrate and their application in Surface Enhancement Raman Scattering
spellingShingle Adsorption of gold nanoparticles on silicon substrate and their application in Surface Enhancement Raman Scattering
F. Castillo
Física, Astronomía y Matemáticas
SERS
Keywords
plasmons
gold nanoparticles
title_short Adsorption of gold nanoparticles on silicon substrate and their application in Surface Enhancement Raman Scattering
title_full Adsorption of gold nanoparticles on silicon substrate and their application in Surface Enhancement Raman Scattering
title_fullStr Adsorption of gold nanoparticles on silicon substrate and their application in Surface Enhancement Raman Scattering
title_full_unstemmed Adsorption of gold nanoparticles on silicon substrate and their application in Surface Enhancement Raman Scattering
title_sort Adsorption of gold nanoparticles on silicon substrate and their application in Surface Enhancement Raman Scattering
dc.creator.none.fl_str_mv F. Castillo
E. Pérez
E. de la Rosa
author F. Castillo
author_facet F. Castillo
E. Pérez
E. de la Rosa
author_role author
author2 E. Pérez
E. de la Rosa
author2_role author
author
dc.subject.none.fl_str_mv Física, Astronomía y Matemáticas
SERS
Keywords
plasmons
gold nanoparticles
topic Física, Astronomía y Matemáticas
SERS
Keywords
plasmons
gold nanoparticles
description Gold nanoparticles were synthesized by using sodium citrate and they were deposited on silicon wafer by immersion and by solvent evapora- tion methods. Silicon wafers was functionalized for the first method and a template of colloidal silica was used in the second one. Scanning electron microscopy shows a homogeneous distribution of nanoparticles on the surface for the immersion method and a self-assembly of gold nanoparticles forming clusters with different sizes in the solvent evaporation one. Rhodamine 6G at concentrations as lower as 10 ° 7 M was used to characterize the Surface Enhanced Raman scattering on surfaces prepared by both methods. The largest enhancement of Raman signal was observed for those substrates prepared by solvent evaporation where clusters were formed. Such enhancement is attributed to the intense electromagnetic field produced by plasmon resonance of gold nanoparticles deposited on a surface.
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0035-001X
https://www.redalyc.org/articulo.oa?id=57030389014
identifier_str_mv 0035-001X
url https://www.redalyc.org/articulo.oa?id=57030389014
dc.language.none.fl_str_mv en
language_invalid_str_mv en
dc.relation.none.fl_str_mv http://www.redalyc.org/revista.oa?id=570
dc.rights.none.fl_str_mv Revista Mexicana de Física
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Revista Mexicana de Física
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Mexicana de Física A.C.
publisher.none.fl_str_mv Sociedad Mexicana de Física A.C.
dc.source.none.fl_str_mv Revista Mexicana de Física (México) Num.2 Vol.57
reponame:Redalyc-UASLP
instname:Universidad Autónoma de San Luis Potosí
instacron:UASLP
instname_str Universidad Autónoma de San Luis Potosí
instacron_str UASLP
institution UASLP
reponame_str Redalyc-UASLP
collection Redalyc-UASLP
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1858175417668599808
score 15,81155

Similares en LA Referencia