NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2020, 11 (3), P. 316–323
Near infrared down-conversion luminescence of Ba4Y3F17:Yb3+:Eu3+ nanoparticles under ultraviolet excitation
S.V. Kuznetsov – Prokhorov General Physics Institute of the Russian Academy of Sciences, Russia; kouznetzovsv@gmail.com
A. S. Nizamutdinov – Kazan Federal University, Russia
E. I. Madirov – Kazan Federal University, Russia
V.V. Voronov – Prokhorov General Physics Institute of the Russian Academy of Sciences, Russia
K. S. Tsoy – Kazan Federal University, Russia
A. R. Khadiev – Kazan Federal University, Russia
A. D. Yapryntsev – Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Russia
V. K. Ivanov – Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Russia
S. S. Kharintsev – Kazan Federal University, Russia
V.V. Semashko – Kazan Federal University, Russia
The single-phase solid solutions Ba4Y3F17:Yb:Eu with fluorite-type structure were synthesized by co-precipitation from aqueous solution technique. The average particle size was approximately 100 nm without agglomeration. The sensitized down-conversion luminescence of Yb3+ ions was observed under 296 nm excitation. The quantum yield of Yb3+ luminescence was found to reach avalue of 0.4 % for samples with Eu/Yb ratios of 0.1/1.0 and 0.1/10.0.
Keywords: nanofluoride, down-conversion, luminescence.
PACS 42.70.-a, 81.20.Fw
DOI 10.17586/2220-8054-2020-11-3-316-323
