Ultraviolet Upconversion Luminescence in a Highly Transparent Triply-Doped Gd3+-Tm3+-Yb3+ Fluoride-Phosphate Glasses

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dc.contributor.authorGalleani, Gustavo [UNESP]
dc.contributor.authorSantagneli, Silvia Helena [UNESP]
dc.contributor.authorLedemi, Yannick
dc.contributor.authorMessaddeq, Younès [UNESP]
dc.contributor.authorJanka, Oliver
dc.contributor.authorPöttgen, Rainer
dc.contributor.authorEckert, Hellmut
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversité Laval
dc.contributor.institutionWWU
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-12-11T17:35:39Z
dc.date.available2018-12-11T17:35:39Z
dc.date.issued2018-02-01
dc.description.abstractWe report near-infrared to ultraviolet (UV) upconversion emissions in triply-doped Gd3+-Tm3+-Yb3+ fluoride-phosphate glasses. Emission at 310 nm, originated from the Gd3+:6P7/2 →8S7/2 transition, was observed for the first time in glasses. The high-purity glasses prepared exhibit extended transparency in the UV down to 200-250 nm. The mixed fluoride-phosphate environment of the rare-earth ions was characterized by means of NMR techniques using scandium as a diamagnetic mimic for the luminescent species, for which the ligand distribution was quantified by 45Sc{31P} rotational echo double-resonance NMR. Both the intensity of the Gd3+ emission as well as those of the UV emissions at 290, 347, and 363 nm increase with increasing ratio of fluoride to phosphate ligands coordinating to the rare-earth ion.en
dc.description.affiliationPhotonics Quebec-Brazil Joint International Research Unit Institute of Chemistry Sao Paulo State University UNESP
dc.description.affiliationPhotonics Quebec-Brazil Joint International Research Unit Center for Optics Photonics and Lasers Université Laval
dc.description.affiliationInstitut für Anorganische und Analytische Chemie WWU
dc.description.affiliationInstitut für Physikalische Chemie WWU
dc.description.affiliationInstituto de Física de Sao Carlos Universidade de Sao Paulo
dc.description.affiliationUnespPhotonics Quebec-Brazil Joint International Research Unit Institute of Chemistry Sao Paulo State University UNESP
dc.format.extent2275-2284
dc.identifierhttp://dx.doi.org/10.1021/acs.jpcc.7b09562
dc.identifier.citationJournal of Physical Chemistry C, v. 122, n. 4, p. 2275-2284, 2018.
dc.identifier.doi10.1021/acs.jpcc.7b09562
dc.identifier.issn1932-7455
dc.identifier.issn1932-7447
dc.identifier.scopus2-s2.0-85041455734
dc.identifier.urihttp://hdl.handle.net/11449/179556
dc.language.isoeng
dc.relation.ispartofJournal of Physical Chemistry C
dc.relation.ispartofsjr2,135
dc.relation.ispartofsjr2,135
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleUltraviolet Upconversion Luminescence in a Highly Transparent Triply-Doped Gd3+-Tm3+-Yb3+ Fluoride-Phosphate Glassesen
dc.typeArtigo
unesp.author.orcid0000-0002-5456-6347[2]
unesp.author.orcid0000-0002-9480-3888[5]
unesp.author.orcid0000-0002-6536-0117[7]

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