10-Fold Quantum Yield Improvement of Ag2S Nanoparticles by Fine Compositional Tuning

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dc.contributor.authorOrtega Rodríguez, Alicia
dc.contributor.authorShen, Yingli
dc.contributor.authorZabala Gutiérrez, Irene
dc.contributor.authorSantos, Harrison D. A.
dc.contributor.authorTorres Vera, Vivian Andrea
dc.contributor.authorXimedes, Erving
dc.contributor.authorVillaverde Cantizano, Gonzalo
dc.contributor.authorLifante, José
dc.contributor.authorGerke, Christoph
dc.contributor.authorFernández Monsalve, Nuria
dc.contributor.authorGómez Calderón, Óscar
dc.contributor.authorMelle Hernández, Sonia
dc.contributor.authorMarqués Hueso, José
dc.contributor.authorMéndez González, Diego
dc.contributor.authorLaurenti, Marco
dc.contributor.authorJones, Callum M. S.
dc.contributor.authorLópez Romero, Juan Manuel
dc.contributor.authorContreras Cáceres, Rafael
dc.contributor.authorJaque García, Daniel
dc.contributor.authorRubio Retama, Benito Jorge
dc.contributor.editorGarma Pons, Santiago
dc.dateReceived: December 17, 2019 Accepted: February 18, 2020 Published: February 18, 2020
dc.date.accessioned2023-06-16T15:16:35Z
dc.date.available2023-06-16T15:16:35Z
dc.date.issued2020-02-18
dc.description.abstractAg2S semiconductor nanoparticles (NPs) are near-infrared luminescent probes with outstanding properties (good biocompatibility, optimum spectral operation range, and easy biofunctionalization) that make them ideal probes for in vivo imaging. Ag2S NPs have, indeed, made possible amazing challenges including in vivo brain imaging and advanced diagnosis of the cardiovascular system. Despite the continuous redesign of synthesis routes, the emission quantum yield (QY) of Ag2S NPs is typically below 0.2%. This leads to a low luminescent brightness that avoids their translation into the clinics. In this work, an innovative synthetic methodology that permits a 10-fold increment in the absolute QY from 0.2 up to 2.3% is presented. Such an increment in the QY is accompanied by an enlargement of photoluminescence lifetimes from 184 to 1200 ns. The optimized synthetic route presented here is based on a fine control over both the Ag core and the Ag/S ratio within the NPs. Such control reduces the density of structural defects and decreases the nonradiative pathways. In addition, we demonstrate that the superior performance of the Ag2S NPs allows for high-contrast in vivo bioimaging. .en
dc.description.departmentSección Deptal. de Óptica (Óptica)
dc.description.facultyFac. de Óptica y Optometría
dc.description.refereedTRUE
dc.description.sponsorshipUnión Europea
dc.description.sponsorshipMinisterio de Economía, Comercio y Empresa (España)
dc.description.sponsorshipComunidad de Madrid
dc.description.sponsorshipUniversidad Complutense de Madrid/Banco de Santander
dc.description.sponsorshipFundación para el Futuro de Colombia Colfuturo
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/59801
dc.identifier.citationOrtega Rodríguez, A., Shen, Y., Zabala gutiérrez, I., et al. «10-Fold Quantum Yield Improvement of Ag 2 S Nanoparticles by Fine Compositional Tuning». ACS Applied Materials & Interfaces, vol. 12, n.o 11, marzo de 2020, pp. 12500-09. DOI.org (Crossref), https://doi.org/10.1021/acsami.9b22827.
dc.identifier.doi10.1021/acsami.9b22827
dc.identifier.essn1944-8252
dc.identifier.issn1944-8244
dc.identifier.officialurlhttps://dx.doi.org/10.1021/acsami.9b22827
dc.identifier.relatedurlhttps://pubs.acs.org/doi/abs/10.1021/acsami.9b22827#
dc.identifier.urihttps://hdl.handle.net/20.500.14352/6125
dc.issue.number11
dc.journal.titleACS Applied materials and interfaces
dc.language.isoeng
dc.page.final12509
dc.page.initial12500
dc.publisherACS
dc.relation.projectIDNanoTBTech (801305)
dc.relation.projectID(MAT2017-83111R; MAT2016-75362-C3-1-R; RTI2018-094859-B-100; CTQ2016-76311)
dc.relation.projectIDRENIM-CM (B2017/BMD-3867); 2018-T1/IND-10736
dc.relation.projectIDCT17/17- CT18/17
dc.rights.accessRightsopen access
dc.subject.cdu616-07
dc.subject.cdu539.2:620.1
dc.subject.cdu543.4
dc.subject.keywordAg2S/Ag
dc.subject.keywordNanoparticles
dc.subject.keywordFluorescence probes
dc.subject.keywordSynthesis optmization
dc.subject.keywordPL lifetime
dc.subject.keywordNIR-II imaging
dc.subject.ucmÓptica (Física)
dc.subject.ucmÓptica geométrica e instrumental
dc.subject.ucmTécnicas de la imagen
dc.subject.unesco2209.19 Óptica Física
dc.subject.unesco2209.06 Óptica geométrica
dc.title10-Fold Quantum Yield Improvement of Ag2S Nanoparticles by Fine Compositional Tuningen
dc.typejournal article
dc.volume.number12
dspace.entity.typePublication
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