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Unravelling the structure of broadband white-emitting silver nanoclusters stabilized in sulfur-doped zeolites

2026-06-18Artigo científico Acesso aberto
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dc.contributor.authorMoreno-Torres, José Adán
dc.contributor.authorViola, Catarina
dc.contributor.authorD'Acapito, Francesco
dc.contributor.authorThompson, Paul
dc.contributor.authorRuivo, Andreia
dc.contributor.authorLaia, César A.T.
dc.contributor.authorLievens, Peter
dc.contributor.authorCoutiño-Gonzalez, Eduardo
dc.contributor.authorGrandjean, Didier
dc.contributor.institutionVICARTE - Vidro e Cerâmica para as Artes
dc.contributor.institutionLAQV@REQUIMTE
dc.contributor.institutionFaculdade de Ciências e Tecnologia (FCT)
dc.contributor.pblRSC - Royal Society of Chemistry
dc.date.accessioned2026-08-27T10:06:01Z
dc.date.available2026-08-27T10:06:01Z
dc.date.issued2026-06-18
dc.descriptionPublisher Copyright: This journal is © The Royal Society of Chemistry, 2026.
dc.description.abstractThe unclear origin of the photoluminescence (PL) in single-phase white-light materials based on silver nanoclusters (Ag–NCs) confined within zeolite hosts has hindered the rational design of composites with tunable emission properties. In this study, we combined X-ray Excited Optical Luminescence (XEOL)–X-ray Absorption Fine Structure (XAFS) at the silver K-edge and X-ray Absorption Near Edge Structure (XANES) at the sulfur K-edge to unravel the structure of the species responsible for the white emission in Ag/S-SOD zeolites. Our findings reveal that the white luminescence observed in these materials arises from the formation and stabilization within the sodalite cages of a mixture of Ag3O, Ag4O2, and Ag6O4 NCs coordinated by oxygen ligands, each having specific emission features. The precise tone of the white-light emission can be further tuned by adjusting their relative fractions. The remarkable emission stability of these materials originates from the closed structure of the SOD zeolites and the formation of a network of Ag–NCs and co-cations stabilized by oxygen ligands, whose coordination environment is modulated by transient silver–sulfur interactions occurring during synthesis. Ultimately, Ag/S-SOD zeolites are not only efficient single-phase and emission-tunable phosphors but also robust platforms for studying the structure–property relationships of confined metal NCs.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent10
dc.format.extent1989859
dc.identifier.doi10.1039/d6nr00693k
dc.identifier.issn2040-3364
dc.identifier.otherPURE: 171708253
dc.identifier.otherPURE UUID: a4929d4c-4d27-4bf9-b745-586bf5d2a1a8
dc.identifier.otherScopus: 105039125353
dc.identifier.otherPubMed: 42171100
dc.identifier.otherWOS: 001769427600001
dc.identifier.otherORCID: /0000-0001-6410-6072/work/225071725
dc.identifier.urihttp://hdl.handle.net/10362/205787
dc.identifier.urlhttps://www.scopus.com/pages/publications/105039125353
dc.language.isoeng
dc.peerreviewedyes
dc.subjectGeneral Materials Science
dc.titleUnravelling the structure of broadband white-emitting silver nanoclusters stabilized in sulfur-doped zeolitesen
dc.typejournal article
degois.publication.firstPage12515
degois.publication.issue23
degois.publication.lastPage12524
degois.publication.titleNanoscale
degois.publication.volume18
dspace.entity.typePublication
rcaap.rightsopenAccess

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