NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2018, 9 (5), P. 663–668
Synthesis and quantum yield investigations of the Sr1-x-yPrxYbyF2+x+y luminophores for photonics
S.V. Kuznetsov – Prokhorov General Physics Institute, of the Russian Academy of Sciences, 38 Vavilova str., Moscow, 119991 Russia; kouznetzovsv@gmail.com
V.Yu. Proydakova – Prokhorov General Physics Institute, of the Russian Academy of Sciences, 38 Vavilova str., Moscow, 119991 Russia
O. A. Morozov – Kazan Federal University, 18 Kremljovskaya, Kazan, 420008 Russia
V. G. Gorieva – Kazan Federal University, 18 Kremljovskaya, Kazan, 420008 Russia
M. A. Marisov – Kazan Federal University, 18 Kremljovskaya, Kazan, 420008 Russia
V.V. Voronov – Prokhorov General Physics Institute, of the Russian Academy of Sciences, 38 Vavilova str., Moscow, 119991 Russia
A. D. Yapryntsev – Kurnakov Institute of General and Inorganic Chemistry, RAS, 31 Leninsky pr., Moscow,119991 Russia
V. K. Ivanov – Kurnakov Institute of General and Inorganic Chemistry, RAS, 31 Leninsky pr., Moscow,119991 Russia
A. S. Nizamutdinov – Kazan Federal University, 18 Kremljovskaya, Kazan, 420008 Russia
V.V. Semashko – Kazan Federal University, 18 Kremljovskaya, Kazan, 420008 Russia
P. P. Fedorov – Prokhorov General Physics Institute, of the Russian Academy of Sciences, 38 Vavilova str., Moscow, 119991 Russia
Single-phase praseodymium- and ytterbium-doped strontium fluoride solid solutions were prepared by co-precipitation from aqueous nitrate solutions followed by annealing at 600 °C. Based on EDX analysis, the content of rare-earth elements in solid phase is slightly higher rather than in initial aqueous solution. All the characteristic praseodymium and ytterbium luminescent bands were present. The most intense luminescence in 800 – 1100 nm range was registered in SrF2: Pr (0.1 mol.%):Yb (10.0 mol.%) solid solution. Using the integrating sphere, the values of the quantum yield were estimated. The maximum quantum yield was 1.1 % for Sr0.9495Pr0.0005Yb0.05F2.0505 solid solution.
Keywords: inorganic fluorides, down-conversion luminophores, rare earths, chemical synthesis, photonics, solar cells.
DOI 10.17586/2220-8054-2018-9-5-663-668
