12

Nanosystems: Phys. Chem. Math., 2022, 13 (3), 331–341
β
Impact of sensitizer Yb and activator Tm on luminescence intensity of β - NaYF4:Yb/Tm nanoluminophores

Sergey V. Kuznetsov – Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, 119991, Russia; kouznetzovsv@gmail.com
Sergey A. Burikov – Department of Physics, Lomonosov Moscow State University, Moscow, 119991, Russia; sergey.burikov@gmail.com
Anna A. Fedyanina – Department of Physics, Lomonosov Moscow State University, Moscow, 119991, Russia; fedyanechka@mail.ru
Ekaterina A. Filippova – Department of Physics, Lomonosov Moscow State University, Moscow, 119991, Russia; filippova.ea17@physics.msu.ru
Vera Yu. Proydakova – Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, 119991, Russia; vera.proydakova@gmail.com
Valerii V. Voronov – Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, 119991, Russia; voronov@lst.gpi.ru
Nataliya Yu. Tabachkova – Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, 119991, Russia; ntabachkova@gmail.com
Pavel P. Fedorov – Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, 119991, Russia; ppfedorov@yandex.ru
Tatiana A. Dolenko – Department of Physics, Lomonosov Moscow State University, Moscow, 119991, Russia; tdolenko@mail.ru

Corresponding author: Sergey V. Kuznetsov, kouznetzovsv@gmail.com

DOI 10.17586/2220-8054-2022-13-3-331-341

ABSTRACT 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.

KEYWORDS up-conversion luminescence, nanoluminophores, rare earth elements, sensitizer, activator

ACKNOWLEDGEMENTS This research was performed according to the Development Program of the Interdisciplinary Scientific and Educational School of Lomonosov Moscow State University “Photonic and Quantum technologies. Digital medicine”. The study of the structure was carried out on the equipment of the Center Collective Use “Materials Science and Metallurgy” with the financial support of the Russian Federation represented by the Ministry of Education and Science (No. 075-15-2021-696).

FOR CITATION Kuznetsov S.V., Burikov S.A., Fedyanina A.A., Filippova E.A., Proydakova V.Yu., Voronov V.V., Tabachkova N.Yu., Fedorov P.P., Dolenko T.A. Impact of sensitizer Yb and activator Tm on luminescence intensity of β -NaYF4:Yb/Tm nanoluminophores. Nanosystems: Phys. Chem. Math., 2022, 13 (3), 331–341.

Download

Supplementary to the arcticle

Comments are closed.