Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains

Metal–organic overlayer structures formed by 1,4-phenylene-diisocyanide (PDI) and Au adatoms on Au(111) in UHV, their stability in air, and the tip-induced Au nanoparticle formation on PDI–Au(111) surfaces in air were investigated using scanning tunneling microscopy (STM) and vibrational spectroscop...

ver descrição completa

Detalhes bibliográficos
Autores: Ghalgaoui, Ahmed, Doudin, Nassar, Calaza, Florencia Carolina, Surnev, Svetlozar, Sterrer, Martin
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/18595
Acesso em linha:http://hdl.handle.net/11336/18595
Access Level:acceso abierto
Palavra-chave:Au(111)
Nanoparticles
Adsorption
Aromatic
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
id AR_6cd1f705d78284422bc76f2fe3893d35
oai_identifier_str oai:ri.conicet.gov.ar:11336/18595
network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic ChainsGhalgaoui, AhmedDoudin, NassarCalaza, Florencia CarolinaSurnev, SvetlozarSterrer, MartinAu(111)NanoparticlesAdsorptionAromatichttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Metal–organic overlayer structures formed by 1,4-phenylene-diisocyanide (PDI) and Au adatoms on Au(111) in UHV, their stability in air, and the tip-induced Au nanoparticle formation on PDI–Au(111) surfaces in air were investigated using scanning tunneling microscopy (STM) and vibrational spectroscopy. This study reveals that the distribution of Au nanoparticles created during tip-induced release of Au atoms from molecule-Au adatom complexes shows strong dependence on the PDI coverage. Ordered Au nanoparticle arrays form in the medium-coverage regime, while more disordered distributions are observed at low and saturation coverages. The different distributions of Au nanoparticles are a direct consequence of the coverage-dependent assembly of (PDI–Au)n chains, their different stability in air, and a templating effect of the Au(111) surface, which is most pronounced for medium coverage, where phases of densely packed (PDI–Au)n chains and disordered PDI–Au assemblies are confined, respectively, to the fcc and hcp regions of the (22 × √3) surface reconstruction of Au(111). The Au nanoparticles nucleate preferentially in the disordered or defective regions of the PDI–Au precursor overlayer, and their formation requires ambient air and high negative tip-bias, suggesting an electrochemical initiation of Au release from the molecule–Au adatom complexes.Fil: Ghalgaoui, Ahmed. University Of Graz. Institute Of Physics; AustriaFil: Doudin, Nassar. University Of Graz. Institute Of Physics; AustriaFil: Calaza, Florencia Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina. Fritz-Haber-Institut der Max-Planck-Gesellschaft; AlemaniaFil: Surnev, Svetlozar. University Of Graz. Institute Of Physics; AustriaFil: Sterrer, Martin. University Of Graz. Institute Of Physics; AustriaAmerican Chemical Society2016-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/18595Ghalgaoui, Ahmed; Doudin, Nassar; Calaza, Florencia Carolina; Surnev, Svetlozar; Sterrer, Martin; Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains; American Chemical Society; Journal Of Physical Chemistry C; 120; 31; 7-2016; 17418-174261932-7447CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/acs.jpcc.6b04630info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b04630info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:43:23Zoai:ri.conicet.gov.ar:11336/18595instacron: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:34982024-05-08 13:43:24.113CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains
title Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains
spellingShingle Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains
Ghalgaoui, Ahmed
Au(111)
Nanoparticles
Adsorption
Aromatic
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
title_short Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains
title_full Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains
title_fullStr Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains
title_full_unstemmed Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains
title_sort Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains
dc.creator.none.fl_str_mv Ghalgaoui, Ahmed
Doudin, Nassar
Calaza, Florencia Carolina
Surnev, Svetlozar
Sterrer, Martin
author Ghalgaoui, Ahmed
author_facet Ghalgaoui, Ahmed
Doudin, Nassar
Calaza, Florencia Carolina
Surnev, Svetlozar
Sterrer, Martin
author_role author
author2 Doudin, Nassar
Calaza, Florencia Carolina
Surnev, Svetlozar
Sterrer, Martin
author2_role author
author
author
author
dc.subject.none.fl_str_mv Au(111)
Nanoparticles
Adsorption
Aromatic
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
topic Au(111)
Nanoparticles
Adsorption
Aromatic
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
description Metal–organic overlayer structures formed by 1,4-phenylene-diisocyanide (PDI) and Au adatoms on Au(111) in UHV, their stability in air, and the tip-induced Au nanoparticle formation on PDI–Au(111) surfaces in air were investigated using scanning tunneling microscopy (STM) and vibrational spectroscopy. This study reveals that the distribution of Au nanoparticles created during tip-induced release of Au atoms from molecule-Au adatom complexes shows strong dependence on the PDI coverage. Ordered Au nanoparticle arrays form in the medium-coverage regime, while more disordered distributions are observed at low and saturation coverages. The different distributions of Au nanoparticles are a direct consequence of the coverage-dependent assembly of (PDI–Au)n chains, their different stability in air, and a templating effect of the Au(111) surface, which is most pronounced for medium coverage, where phases of densely packed (PDI–Au)n chains and disordered PDI–Au assemblies are confined, respectively, to the fcc and hcp regions of the (22 × √3) surface reconstruction of Au(111). The Au nanoparticles nucleate preferentially in the disordered or defective regions of the PDI–Au precursor overlayer, and their formation requires ambient air and high negative tip-bias, suggesting an electrochemical initiation of Au release from the molecule–Au adatom complexes.
publishDate 2016
dc.date.none.fl_str_mv 2016-07
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/11336/18595
Ghalgaoui, Ahmed; Doudin, Nassar; Calaza, Florencia Carolina; Surnev, Svetlozar; Sterrer, Martin; Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains; American Chemical Society; Journal Of Physical Chemistry C; 120; 31; 7-2016; 17418-17426
1932-7447
CONICET Digital
CONICET
url http://hdl.handle.net/11336/18595
identifier_str_mv Ghalgaoui, Ahmed; Doudin, Nassar; Calaza, Florencia Carolina; Surnev, Svetlozar; Sterrer, Martin; Ordered Au Nanoparticle Array on Au(111) through Coverage Control of Precursor Metal−Organic Chains; American Chemical Society; Journal Of Physical Chemistry C; 120; 31; 7-2016; 17418-17426
1932-7447
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.jpcc.6b04630
info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b04630
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
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
_version_ 1799195095892754432
score 15,811543

Registos relacionados