Crystal structure, NIR luminescence and X-ray computed tomography of Nd3+:Ba0.3Lu0.7F2.7 nanospheres

Uniform, hydrophilic 50 nm diameter Nd3+-doped Ba0.3Lu0.7F2.7 nanospheres are synthesized at 120 °C using a singular one-pot method based on the use of ethylene glycol as solvent, in the absence of any additive. The composition and crystal structure of the undoped material are analyzed in detail usi...

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Autores: González Mancebo, Daniel, Becerro Nieto, Ana Isabel, Cantelar, Eugenio, Cussó, Fernando, Briat, Arnaud, Ocaña Jurado, Manuel
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2017
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/79090
Acceso en línea:https://hdl.handle.net/11441/79090
https://doi.org/10.1039/c7dt00453b
Access Level:acceso abierto
Palabra clave:Rare earth fluorides
Luminescence
Computed tomography
Nanospheres
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spelling Crystal structure, NIR luminescence and X-ray computed tomography of Nd3+:Ba0.3Lu0.7F2.7 nanospheresGonzález Mancebo, DanielBecerro Nieto, Ana IsabelCantelar, EugenioCussó, FernandoBriat, ArnaudOcaña Jurado, ManuelRare earth fluoridesLuminescenceComputed tomographyNanospheresUniform, hydrophilic 50 nm diameter Nd3+-doped Ba0.3Lu0.7F2.7 nanospheres are synthesized at 120 °C using a singular one-pot method based on the use of ethylene glycol as solvent, in the absence of any additive. The composition and crystal structure of the undoped material are analyzed in detail using ICP and XRD, which reveals a BaF2 cubic crystal structure that is able to incorporate 70 mol% of Lu ions. This finding contrasts with the reported phase diagram of the system, where the maximum solubility is around 30 mol% Lu. XRD proves as well that the Ba0.3Lu0.7F2.7 structure is able to incorporate Nd3+ ions up to, at least 10 mol%, without altering the uniform particles morphology. The Nd-doped particles exhibit nearinfrared luminescence when excited at 810 nm. The maximum emission intensity with the minimum concentration quenching effect is obtained at 1.5% Nd doping level. X-ray computed tomography experiments are carried out on powder samples of the latter composition. The sample significantly absorbs X-ray photons, thus demonstrating that the Nd3+-doped Ba0.3Lu0.7F2.7 nanospheres are good candidates as contrast agents in computed tomography.Ministerio de Economía y Competitividad MAT2014-54852-R, MAT2012-34919Consejo Superior de Investigaciones Científicas 201560E056, 201460E005Royal Society of Chemistry (Great Britain)Química InorgánicaMinisterio de Economía y Competitividad (MINECO). EspañaConsejo Superior de Investigaciones Científicas (CSIC)2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/79090https://doi.org/10.1039/c7dt00453breponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésDalton Transactions, 46, 6580-6587.MAT2014-54852-RMAT2012-34919201560E056201460E005http://dx.doi.org/10.1039/c7dt00453binfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/790902026-06-17T12:51:07Z
dc.title.none.fl_str_mv Crystal structure, NIR luminescence and X-ray computed tomography of Nd3+:Ba0.3Lu0.7F2.7 nanospheres
title Crystal structure, NIR luminescence and X-ray computed tomography of Nd3+:Ba0.3Lu0.7F2.7 nanospheres
spellingShingle Crystal structure, NIR luminescence and X-ray computed tomography of Nd3+:Ba0.3Lu0.7F2.7 nanospheres
González Mancebo, Daniel
Rare earth fluorides
Luminescence
Computed tomography
Nanospheres
title_short Crystal structure, NIR luminescence and X-ray computed tomography of Nd3+:Ba0.3Lu0.7F2.7 nanospheres
title_full Crystal structure, NIR luminescence and X-ray computed tomography of Nd3+:Ba0.3Lu0.7F2.7 nanospheres
title_fullStr Crystal structure, NIR luminescence and X-ray computed tomography of Nd3+:Ba0.3Lu0.7F2.7 nanospheres
title_full_unstemmed Crystal structure, NIR luminescence and X-ray computed tomography of Nd3+:Ba0.3Lu0.7F2.7 nanospheres
title_sort Crystal structure, NIR luminescence and X-ray computed tomography of Nd3+:Ba0.3Lu0.7F2.7 nanospheres
dc.creator.none.fl_str_mv González Mancebo, Daniel
Becerro Nieto, Ana Isabel
Cantelar, Eugenio
Cussó, Fernando
Briat, Arnaud
Ocaña Jurado, Manuel
author González Mancebo, Daniel
author_facet González Mancebo, Daniel
Becerro Nieto, Ana Isabel
Cantelar, Eugenio
Cussó, Fernando
Briat, Arnaud
Ocaña Jurado, Manuel
author_role author
author2 Becerro Nieto, Ana Isabel
Cantelar, Eugenio
Cussó, Fernando
Briat, Arnaud
Ocaña Jurado, Manuel
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Química Inorgánica
Ministerio de Economía y Competitividad (MINECO). España
Consejo Superior de Investigaciones Científicas (CSIC)
dc.subject.none.fl_str_mv Rare earth fluorides
Luminescence
Computed tomography
Nanospheres
topic Rare earth fluorides
Luminescence
Computed tomography
Nanospheres
description Uniform, hydrophilic 50 nm diameter Nd3+-doped Ba0.3Lu0.7F2.7 nanospheres are synthesized at 120 °C using a singular one-pot method based on the use of ethylene glycol as solvent, in the absence of any additive. The composition and crystal structure of the undoped material are analyzed in detail using ICP and XRD, which reveals a BaF2 cubic crystal structure that is able to incorporate 70 mol% of Lu ions. This finding contrasts with the reported phase diagram of the system, where the maximum solubility is around 30 mol% Lu. XRD proves as well that the Ba0.3Lu0.7F2.7 structure is able to incorporate Nd3+ ions up to, at least 10 mol%, without altering the uniform particles morphology. The Nd-doped particles exhibit nearinfrared luminescence when excited at 810 nm. The maximum emission intensity with the minimum concentration quenching effect is obtained at 1.5% Nd doping level. X-ray computed tomography experiments are carried out on powder samples of the latter composition. The sample significantly absorbs X-ray photons, thus demonstrating that the Nd3+-doped Ba0.3Lu0.7F2.7 nanospheres are good candidates as contrast agents in computed tomography.
publishDate 2017
dc.date.none.fl_str_mv 2017
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 https://hdl.handle.net/11441/79090
https://doi.org/10.1039/c7dt00453b
url https://hdl.handle.net/11441/79090
https://doi.org/10.1039/c7dt00453b
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Dalton Transactions, 46, 6580-6587.
MAT2014-54852-R
MAT2012-34919
201560E056
201460E005
http://dx.doi.org/10.1039/c7dt00453b
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry (Great Britain)
publisher.none.fl_str_mv Royal Society of Chemistry (Great Britain)
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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