Geodesic
Spectral-kinetic properties of LaF$_3$ nanoparticles doped with Ce$^{3+}$ and Sm$^{3+}$ ions after
Nanosistemy: fizika, himiâ, matematika, Tome 9 (2018) no. 6, pp. 783-788

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Crystalline LaF$_3$:Sm$^{3+}$ and LaF$_3$:Ce$^{3+}$ nanoparticles were fabricated via a co-precipitation method. The obtained nanoparticles were 15–20 nm and had good crystallinity. Spectral-kinetic properties of crystalline LaF$_3$ nanoparticles activated with 5 % Sm$^{3+}$ and 12 % Ce$^{3+}$ ions were studied. Various duration of the microwave treatment as well as core-shell structure were studied as possible ways to control quenching in the nanoparticles. In case of the LaF$_3$:Sm$^{3+}$ nanoparticles, the additional microwave treatment increased the average luminescence lifetime by 6 % and addition of the LaF$_3$ shell increased it by 18 %. In case of the LaF$_3$:Ce$^{3+}$ sample, microwave treatment increased the average lifetime by up to 20 %. The observed effects of varying the synthetic conditions and composite core-shell structure on luminescence properties of nanoparticles provide a means to manage the energy loss in the nanoparticles due to the quenching factors.
Keywords: rare-earth ions, fluoride, samarium, cerium.
Mots-clés : nanoparticle 
@article{NANO_2018_9_6_a11,
     author = {E. I. Madirov and E. V. Lukinova and A. S. Nizamutdinov and M. S. Pudovkin and S. L. Korableva and V. V. Semashko},
     title = {Spectral-kinetic properties of {LaF}$_3$ nanoparticles doped with {Ce}$^{3+}$ and {Sm}$^{3+}$ ions after},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {783--788},
     publisher = {mathdoc},
     volume = {9},
     number = {6},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2018_9_6_a11/}
}
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%A E. V. Lukinova
%A A. S. Nizamutdinov
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E. I. Madirov; E. V. Lukinova; A. S. Nizamutdinov; M. S. Pudovkin; S. L. Korableva; V. V. Semashko. Spectral-kinetic properties of LaF$_3$ nanoparticles doped with Ce$^{3+}$ and Sm$^{3+}$ ions after. Nanosistemy: fizika, himiâ, matematika, Tome 9 (2018) no. 6, pp. 783-788. http://geodesic.mathdoc.fr/item/NANO_2018_9_6_a11/