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Upconversion Luminescence from Sol-Gel-Derived Erbium- and Ytterbium-Doped BaTiO3 Film Structures and the Target Form

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dc.contributor.authorGaponenko, N. V.
dc.contributor.authorStaskov, N. I.
dc.contributor.authorSudnik, L. V.
dc.contributor.authorMartynov, I. L.
dc.contributor.authorChistyakov, A. A.
dc.contributor.authorKargin, N. I.
dc.contributor.authorLabunov, V. A.
dc.contributor.authorМартынов, Игорь Леонидович
dc.contributor.authorЧистяков, Александр Александрович
dc.contributor.authorКаргин, Николай Иванович
dc.contributor.authorЛабунов, Владимир
dc.date.accessioned2024-12-28T10:19:40Z
dc.date.available2024-12-28T10:19:40Z
dc.date.issued2023
dc.description.abstractSol-gel technology has attracted attention in the fabrication of diverse luminescent materials and thin film structures, with forms that range from powders to microcavities. The optical properties of sol-gel-derived structures depend on the sol composition, deposition, and heat treatment conditions, as well as on the film thicknesses and other factors. Investigations on the upconversion luminescence of lanthanides in film structures and materials are also ongoing. In this study, we synthesized three different types of materials and film structures using the same sol, which corresponded to a Ba0.76Er0.04Yb0.20TiO3 xerogel, as follows: (a) the target form, which used the explosive compaction method for sol-gel-derived powder; (b) single-layer spin-on xerogel films annealed at 450 and 800 В°C; and (c) microcavities with an undoped SiO2/BaTiO3 Bragg reflector surrounding a Ba0.76Er0.04Yb0.20TiO3 active layer. The BaTiO3:(Er,Yb)/SiO2 microcavity exhibited an enhancement of the upconversion luminescence when compared to the BaTiO3:(Er,Yb) double-layer film fabricated directly on a crystalline silicon substrate. The reflection spectra of the BaTiO3:(Er, Yb)/SiO2 microcavity annealed at 800 В°C demonstrated a deviation of the maxima of the reflection within 15% for temperature measurements ranging from 26 to 120 В°C. From the analyses of the transmission and reflection spectra, the optical band gap for the indirect optical transition in the single layer of the BaTiO3:(Er,Yb) spin-on film annealed at 450 В°C was estimated to be 3.82 eV, while that for the film annealed at 800 В°C was approximately 3.87 eV. The optical properties, upconversion luminescence, and potential applications of the BaTiO3:(Er,Yb) sol-gel-derived materials and structures are discussed in this paper.
dc.identifier.citationUpconversion Luminescence from Sol-Gel-Derived Erbium- and Ytterbium-Doped BaTiO3 Film Structures and the Target Form / Gaponenko, N. V. [et al.] // Photonics. - 2023. - 10. - № 4. - 10.3390/photonics10040359
dc.identifier.doi10.3390/photonics10040359
dc.identifier.urihttps://www.doi.org/10.3390/photonics10040359
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85153765457&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000979553700001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/30116
dc.relation.ispartofPhotonics
dc.subjectPhoton upconversion
dc.subjectLuminescent Materials
dc.subjectErbium
dc.titleUpconversion Luminescence from Sol-Gel-Derived Erbium- and Ytterbium-Doped BaTiO3 Film Structures and the Target Form
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue4
oaire.citation.volume10
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