Geodesic
Structure and photoluminescent properties of TiO$_2$:Eu$^{3+}$ nanoparticles synthesized under hydro and solvothermal conditions from different precursors
Nanosistemy: fizika, himiâ, matematika, Tome 10 (2019) no. 3, pp. 361-373

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Crystalline phosphors of Eu$^{3+}$-doped titania (TiO$_2$:Eu$^{3+}$) were prepared by hydro and solvothermal synthesis with luminescent ion concentration of 2 mol.%. The structure and shape of the synthesized nanoparticles were characterized using X-ray powder diffraction, transmission electron microscopy, and Raman spectroscopy. Changes in the emission, excitation spectra, and the intensity decay of the photoluminescence for TiO$_2$:Eu$^{3+}$ nanoparticles were analyzed their phase composition. The photoluminescence of synthesized TiO$_2$:Eu$^{3+}$ crystalline phosphors depends on whether the said nanophosphors are formed from organometallic or inorganic precursors under hydro- and solvothermal conditions. Indeed, photoluminescence excitation at wavelengths ranging from 350–550 nm leads to splitting of electron dipole transitions into Stark components according to the symmetry of the Eu$^{3+}$ surroundings. Also, both nanoparticles with the anatase structure and phosphors predominantly containing rutile showed very short photoluminescence lifetimes.
Keywords: hydrothermal synthesis, titania, anatase, fluorescence lifetime.
Mots-clés : europium, solid solution, rutile, nanophosphors, photoluminescence 
@article{NANO_2019_10_3_a12,
     author = {A. Yu. Zavialova and A. N. Bugrov and R. Yu. Smyslov and D. A. Kirilenko and T. V. Khamova and G. P. Kopitsa and C. Licitra and D. Rouchon},
     title = {Structure and photoluminescent properties of {TiO}$_2${:Eu}$^{3+}$ nanoparticles synthesized under hydro and solvothermal conditions from different precursors},
     journal = {Nanosistemy: fizika, himi\^a, matematika},
     pages = {361--373},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NANO_2019_10_3_a12/}
}
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AU  - G. P. Kopitsa
AU  - C. Licitra
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%A D. A. Kirilenko
%A T. V. Khamova
%A G. P. Kopitsa
%A C. Licitra
%A D. Rouchon
%T Structure and photoluminescent properties of TiO$_2$:Eu$^{3+}$ nanoparticles synthesized under hydro and solvothermal conditions from different precursors
%J Nanosistemy: fizika, himiâ, matematika
%D 2019
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A. Yu. Zavialova; A. N. Bugrov; R. Yu. Smyslov; D. A. Kirilenko; T. V. Khamova; G. P. Kopitsa; C. Licitra; D. Rouchon. Structure and photoluminescent properties of TiO$_2$:Eu$^{3+}$ nanoparticles synthesized under hydro and solvothermal conditions from different precursors. Nanosistemy: fizika, himiâ, matematika, Tome 10 (2019) no. 3, pp. 361-373. http://geodesic.mathdoc.fr/item/NANO_2019_10_3_a12/