Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires

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This work was supported by the National Research Foundation of President Post-doctoral fellowship Program (NRF-2013R1A6A3A060443). L. De Los Santos Valladares thanks the Incorporacion de Investigadores Program from the CONCYTEC - World Bank - UNMSM (Contrat No. 12 -2019 - FONDECYT - BM - INC. INV.)...

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Detalles Bibliográficos
Autores: Choi E., Lee D., Shin H.-J., Kim N., De Los Santos Valladares L., Seo J.
Formato: artículo
Fecha de Publicación:2021
Institución:Consejo Nacional de Ciencia Tecnología e Innovación
Repositorio:CONCYTEC-Institucional
Lenguaje:inglés
OAI Identifier:oai:repositorio.concytec.gob.pe:20.500.12390/3051
Enlace del recurso:https://hdl.handle.net/20.500.12390/3051
https://doi.org/10.1021/acs.jpcc.1c02937
Nivel de acceso:acceso abierto
Materia:photoluminescence
oxygen
https://purl.org/pe-repo/ocde/ford#1.06.15
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oai_identifier_str oai:repositorio.concytec.gob.pe:20.500.12390/3051
network_acronym_str CONC
network_name_str CONCYTEC-Institucional
repository_id_str 4689
dc.title.none.fl_str_mv Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires
title Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires
spellingShingle Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires
Choi E.
photoluminescence
oxygen
https://purl.org/pe-repo/ocde/ford#1.06.15
title_short Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires
title_full Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires
title_fullStr Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires
title_full_unstemmed Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires
title_sort Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires
author Choi E.
author_facet Choi E.
Lee D.
Shin H.-J.
Kim N.
De Los Santos Valladares L.
Seo J.
author_role author
author2 Lee D.
Shin H.-J.
Kim N.
De Los Santos Valladares L.
Seo J.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Choi E.
Lee D.
Shin H.-J.
Kim N.
De Los Santos Valladares L.
Seo J.
dc.subject.none.fl_str_mv photoluminescence
topic photoluminescence
oxygen
https://purl.org/pe-repo/ocde/ford#1.06.15
dc.subject.es_PE.fl_str_mv oxygen
dc.subject.ocde.none.fl_str_mv https://purl.org/pe-repo/ocde/ford#1.06.15
description This work was supported by the National Research Foundation of President Post-doctoral fellowship Program (NRF-2013R1A6A3A060443). L. De Los Santos Valladares thanks the Incorporacion de Investigadores Program from the CONCYTEC - World Bank - UNMSM (Contrat No. 12 -2019 - FONDECYT - BM - INC. INV.) for supporting his research at the University of San Marcos, Peru.
publishDate 2021
dc.date.accessioned.none.fl_str_mv 2024-05-30T23:13:38Z
dc.date.available.none.fl_str_mv 2024-05-30T23:13:38Z
dc.date.issued.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12390/3051
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1021/acs.jpcc.1c02937
dc.identifier.scopus.none.fl_str_mv 2-s2.0-85110468867
url https://hdl.handle.net/20.500.12390/3051
https://doi.org/10.1021/acs.jpcc.1c02937
identifier_str_mv 2-s2.0-85110468867
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.ispartof.none.fl_str_mv Journal of Physical Chemistry C
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONCYTEC-Institucional
instname:Consejo Nacional de Ciencia Tecnología e Innovación
instacron:CONCYTEC
instname_str Consejo Nacional de Ciencia Tecnología e Innovación
instacron_str CONCYTEC
institution CONCYTEC
reponame_str CONCYTEC-Institucional
collection CONCYTEC-Institucional
repository.name.fl_str_mv Repositorio Institucional CONCYTEC
repository.mail.fl_str_mv repositorio@concytec.gob.pe
_version_ 1844883112772763648
spelling Publicationrp08746600rp08745600rp08747600rp08749600rp06076600rp08748600Choi E.Lee D.Shin H.-J.Kim N.De Los Santos Valladares L.Seo J.2024-05-30T23:13:38Z2024-05-30T23:13:38Z2021https://hdl.handle.net/20.500.12390/3051https://doi.org/10.1021/acs.jpcc.1c029372-s2.0-85110468867This work was supported by the National Research Foundation of President Post-doctoral fellowship Program (NRF-2013R1A6A3A060443). L. De Los Santos Valladares thanks the Incorporacion de Investigadores Program from the CONCYTEC - World Bank - UNMSM (Contrat No. 12 -2019 - FONDECYT - BM - INC. INV.) for supporting his research at the University of San Marcos, Peru.The role of oxygen vacancies in temperature-dependent photoluminescence of SnO2 nanowires was investigated by X-ray absorption spectroscopy. Two types of oxygen vacancies are present in the nanowires: at out-of-plane sites and at in-plane sites; both play crucial roles in the temperature dependence of the photoluminescence. Oxygen vacancies at in-plane sites participate in photon emission at low temperature, whereas those at out-of-plane sites result in photoluminescence at room temperature. Accordingly, the luminescence color changes from orange (630 nm, 1.93 eV) to green (515 nm, 2.4 eV) at 100 K. The color change is accompanied with a notable change in the oxygen K-edge X-ray absorption spectra. The scanning transmission X-ray microscopy results indicate that more oxygen vacancies at in-plane sites are present in the surface region than in the bulk region, whereas more oxygen vacancies at out-of-plane sites are present in the bulk region than in the surface region. Overall, the results demonstrate that oxygen-vacancy-mediated fluorescence properties of SnO2 nanowires are temperature-dependent; i.e., the photoluminescence mechanisms of the nanowires are mediated by oxygen vacancies at different sites, and the bicolor fluorescence originates from charge transfer between the states. © 2021 American Chemical Society.Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - ConcytecengAmerican Chemical SocietyJournal of Physical Chemistry Cinfo:eu-repo/semantics/openAccessphotoluminescenceoxygen-1https://purl.org/pe-repo/ocde/ford#1.06.15-1Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowiresinfo:eu-repo/semantics/articlereponame:CONCYTEC-Institucionalinstname:Consejo Nacional de Ciencia Tecnología e Innovacióninstacron:CONCYTEC20.500.12390/3051oai:repositorio.concytec.gob.pe:20.500.12390/30512024-05-30 16:13:31.421http://purl.org/coar/access_right/c_14cbinfo:eu-repo/semantics/closedAccessmetadata only accesshttps://repositorio.concytec.gob.peRepositorio Institucional CONCYTECrepositorio@concytec.gob.pe#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="644fde78-79ec-4046-85b2-ae8a40c0425d"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires</Title> <PublishedIn> <Publication> <Title>Journal of Physical Chemistry C</Title> </Publication> </PublishedIn> <PublicationDate>2021</PublicationDate> <DOI>https://doi.org/10.1021/acs.jpcc.1c02937</DOI> <SCP-Number>2-s2.0-85110468867</SCP-Number> <Authors> <Author> <DisplayName>Choi E.</DisplayName> <Person id="rp08746" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Lee D.</DisplayName> <Person id="rp08745" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Shin H.-J.</DisplayName> <Person id="rp08747" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Kim N.</DisplayName> <Person id="rp08749" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>De Los Santos Valladares L.</DisplayName> <Person id="rp06076" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Seo J.</DisplayName> <Person id="rp08748" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>American Chemical Society</DisplayName> <OrgUnit /> </Publisher> </Publishers> <Keyword>photoluminescence</Keyword> <Keyword>oxygen</Keyword> <Abstract>The role of oxygen vacancies in temperature-dependent photoluminescence of SnO2 nanowires was investigated by X-ray absorption spectroscopy. Two types of oxygen vacancies are present in the nanowires: at out-of-plane sites and at in-plane sites; both play crucial roles in the temperature dependence of the photoluminescence. Oxygen vacancies at in-plane sites participate in photon emission at low temperature, whereas those at out-of-plane sites result in photoluminescence at room temperature. Accordingly, the luminescence color changes from orange (630 nm, 1.93 eV) to green (515 nm, 2.4 eV) at 100 K. The color change is accompanied with a notable change in the oxygen K-edge X-ray absorption spectra. The scanning transmission X-ray microscopy results indicate that more oxygen vacancies at in-plane sites are present in the surface region than in the bulk region, whereas more oxygen vacancies at out-of-plane sites are present in the bulk region than in the surface region. Overall, the results demonstrate that oxygen-vacancy-mediated fluorescence properties of SnO2 nanowires are temperature-dependent; i.e., the photoluminescence mechanisms of the nanowires are mediated by oxygen vacancies at different sites, and the bicolor fluorescence originates from charge transfer between the states. © 2021 American Chemical Society.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication> -1
score 13.937827
Role of Oxygen Vacancy Sites on the Temperature-Dependent Photoluminescence of SnO2Nanowires
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