Geodesic
Dependence of quantum yield of up-conversion luminescence on the composition of fluorite-type solid solution NaY$_{1-x-y}$Yb$_{x}$Er$_{y}$F$_{4}$
Nanosistemy: fizika, himiâ, matematika, Tome 4 (2013) no. 5, pp. 648-656

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A study of the properties of polycrystalline fluorite-type NaY$_{1-x-y}$Yb$_{x}$Er$_{y}$F$_{4}$ solid solutions demonstrated that NaY$_{0.87}$Yb$_{0.10}$Er$_{0.03}$F$_{4}$ and NaY$_{0.885}$Yb$_{0.1}$Er$_{0.015}$F$_{4}$ samples produced up-conversion luminescence with 3.35% and 3.62% quantum yields, which were higher than quantum yields of the other NaY$_{1-x-y}$Yb$_{x}$Er$_{y}$F$_{4}$ samples. NaY$_{1-x-y}$Yb$_{x}$Er$_{y}$F$_{4}$ specimens were prepared by co-precipitation from aqueous solutions by drop-wise addition of rare earth nitrate solutions to aqueous sodium fluoride.
Keywords: fluorides, nanopowders, sodium, yttrium, quantum yield.
Mots-clés : up-conversion luminescence 
@article{NANO_2013_4_5_a6,
     author = {D. S. Yasyrkina and S. V. Kuznetsov and A. V. Ryabova and D. V. Pominova and V. V. Voronov and R. P. Ermakov and P. P. Fedorov},
     title = {Dependence of quantum yield of up-conversion luminescence on the composition of fluorite-type solid solution {NaY}$_{1-x-y}${Yb}$_{x}${Er}$_{y}${F}$_{4}$},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {648--656},
     publisher = {mathdoc},
     volume = {4},
     number = {5},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2013_4_5_a6/}
}
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%A V. V. Voronov
%A R. P. Ermakov
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D. S. Yasyrkina; S. V. Kuznetsov; A. V. Ryabova; D. V. Pominova; V. V. Voronov; R. P. Ermakov; P. P. Fedorov. Dependence of quantum yield of up-conversion luminescence on the composition of fluorite-type solid solution NaY$_{1-x-y}$Yb$_{x}$Er$_{y}$F$_{4}$. Nanosistemy: fizika, himiâ, matematika, Tome 4 (2013) no. 5, pp. 648-656. http://geodesic.mathdoc.fr/item/NANO_2013_4_5_a6/