najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2022-13-3-331-341najo-245Research ArticleСтатьиImpact of sensitizer Yb and activator Tm on luminescence intensity of β -NaYF4:Yb/Tm nanoluminophoresKuznetsovS. V.kouznetzovsv@gmail.comBurikovS. A.sergey.burikov@gmail.comFedyaninaA. A.fedyanechka@mail.ruFilippovaE. A.lippova.ea17@physics.msu.ruProydakovaV. Yu.vera.proydakova@gmail.comVoronovV. V.voronov@lst.gpi.ruTabachkovaN. Yu.ntabachkova@gmail.comFedorovP. P.ppfedorov@yandex.ruDolenkoT. A.tdolenko@mail.ruProkhorov General Physics Institute of the Russian Academy of SciencesRussian FederationLomonosov Moscow State UniversityRussian Federation202206062025133331341Copyright © Kuznetsov S.V., Burikov S.A., Fedyanina A.A., Filippova E.A., Proydakova V.Y., Voronov V.V., Tabachkova N.Y., Fedorov P.P., Dolenko T.A., 20252025Kuznetsov S.V., Burikov S.A., Fedyanina A.A., Filippova E.A., Proydakova V.Y., Voronov V.V., Tabachkova N.Y., Fedorov P.P., Dolenko T.A.Kuznetsov S.V., Burikov S.A., Fedyanina A.A., Filippova E.A., Proydakova V.Y., Voronov V.V., Tabachkova N.Y., Fedorov P.P., Dolenko T.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/245

In this study, the impact of sensitizer and activator ions concentration on the intensity of up-conversion luminescence of nanoluminophores β-NaYF4:Yb3+/Tm3+ in dimethyl sulfoxide (DMSO) was investigated. Analysis of all luminescence spectral bands allows one to establish that the ratio of concentrations of ytterbium and thulium ions strongly effects on the luminescent properties of nanoluminophores. Increase of sensitizer concentration at constant activator concentration leads to an increase of the luminescence integral intensity. Optimal concentration of activators at fixed sensitizer concentration was determined: 2 mol.% for thulium and 18 mol.% for ytterbium. The sensitivity of each luminescence spectrum band to changes in the concentration of activators and sensitizers was explained by cross-relaxation processes in activator ions.

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