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dc.creatorDinić, Ivana
dc.creatorVuković, Marina
dc.creatorNikolić, Marko G.
dc.creatorTan, Zhenquan
dc.creatorMilošević, Olivera
dc.creatorMančić, Lidija
dc.date.accessioned2020-12-05T02:26:10Z
dc.date.available2021-08-27
dc.date.issued2020
dc.identifier.issn0021-9606
dc.identifier.urihttps://dais.sanu.ac.rs/123456789/9818
dc.description.abstractThe synthesis of lanthanide doped up-converting nanoparticles (UCNPs), whose morphological, structural, and luminescence properties are well suited for applications in optoelectronics, forensics, security, or biomedicine, is of tremendous significance. The most commonly used synthesis method comprises decomposition of organometallic compounds in an oxygen-free environment and subsequent infliction of a biocompatible layer on the particle surface. In this work, hydroxyl-carboxyl (- OH/ - COOH) type of chelating agents (citric acid and sodium citrate) are used in situ for the solvothermal synthesis of hydrophilic NaY0.5Gd0.3F4:Yb,Er UCNPs from rare earth nitrate salts and different fluoride sources (NaF, NH4F, and NH4HF2). X-ray powder diffraction showed crystallization of cubic and hexagonal NaY0.5Gd0.3F4:Yb,Er phases in nano- and micro-sized particles, respectively. The content of the hexagonal phase prevails in the samples obtained when Na-citrate is used, while the size and shape of the synthesized mesocrystals are affected by the choice of fluoride source used for precipitation. All particles are functionalized with citrate ligands and emit intense green light at 519 nm and 539 nm (2H11/2, 4S3/2 → 4I15/2) under near infrared light. The intensity of this emission is distressed by the change in the origin of phonon energy of the host matrix revealed by the change in the number of the excitation photons absorbed per emitted photon.en
dc.publisherAmerican Institute of Physics
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200288/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200175/RS//
dc.rightsembargoedAccess
dc.sourceThe Journal of Chemical Physics
dc.titleUp-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effecten
dc.typearticle
dc.rights.licenseBY-NC-ND
dcterms.abstractМанчић, Лидија; Динић, Ивана; Вуковић, Марина; Николић, Марко Г.; Тан, Зхенqуан; Милошевић, Оливера;
dc.citation.spage084706
dc.citation.volume153
dc.citation.issue8
dc.identifier.wos000567952100001
dc.identifier.doi10.1063/5.0016559
dc.identifier.scopus2-s2.0-85090180199
dc.type.versionacceptedVersion


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