Eu3+, Sm3+ and Tb3+ ions have been incorporated into anatase TiO2 nanocrystals via hydrolytic sol gel method. Pure anatase phase was confirmed with XRD and TEM measurements. Band gap energies change slightly with rare earth incorporation, from 3.32 eV for undoped TiO2 to 3.15 eV, 3.25 eV and 3.29 eV for Tb3+, Sm3+ and Eu3+ doped TiO2. Photoluminescence of Eu3+ and Sm3+ originated from three different sites in TiO2 nanocrystals have been identified with the laser-excited site-selective spectroscopy measurements at 10 K. One site exhibits broad emission peaks, which are ascribed to the distorted lattice site near the surface. Other two sites, associated with the inner lattice, show significantly sharper fluorescence lines as a consequence of an ordered crystalline environment. The emission decays of Eu3+ and Sm3+ have similar values for inner-lattice sites and longer lifetimes for near-surface sites. The luminescence of Tb3+ doped TiO2 nanocrystals was immeasurably weak. (C) 2012 Elsevie...r B.V. All rights reserved.
TY - JOUR
AU - Antić, Željka
AU - Krsmanović, Radenka
AU - Nikolic, Marko G.
AU - Marinović-Cincović, Milena
AU - Mitrić, Miodrag
AU - Polizzi, Stefano
AU - Dramićanin, Miroslav
PY - 2012
UR - http://vinar.vin.bg.ac.rs/handle/123456789/5056
AB - Eu3+, Sm3+ and Tb3+ ions have been incorporated into anatase TiO2 nanocrystals via hydrolytic sol gel method. Pure anatase phase was confirmed with XRD and TEM measurements. Band gap energies change slightly with rare earth incorporation, from 3.32 eV for undoped TiO2 to 3.15 eV, 3.25 eV and 3.29 eV for Tb3+, Sm3+ and Eu3+ doped TiO2. Photoluminescence of Eu3+ and Sm3+ originated from three different sites in TiO2 nanocrystals have been identified with the laser-excited site-selective spectroscopy measurements at 10 K. One site exhibits broad emission peaks, which are ascribed to the distorted lattice site near the surface. Other two sites, associated with the inner lattice, show significantly sharper fluorescence lines as a consequence of an ordered crystalline environment. The emission decays of Eu3+ and Sm3+ have similar values for inner-lattice sites and longer lifetimes for near-surface sites. The luminescence of Tb3+ doped TiO2 nanocrystals was immeasurably weak. (C) 2012 Elsevier B.V. All rights reserved.
T2 - Materials Chemistry and Physics
T1 - Multisite luminescence of rare earth doped TiO2 anatase nanoparticles
VL - 135
IS - 2-3
SP - 1064
EP - 1069
DO - 10.1016/j.matchemphys.2012.06.016
ER -
@article{
author = "Antić, Željka and Krsmanović, Radenka and Nikolic, Marko G. and Marinović-Cincović, Milena and Mitrić, Miodrag and Polizzi, Stefano and Dramićanin, Miroslav",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5056",
abstract = "Eu3+, Sm3+ and Tb3+ ions have been incorporated into anatase TiO2 nanocrystals via hydrolytic sol gel method. Pure anatase phase was confirmed with XRD and TEM measurements. Band gap energies change slightly with rare earth incorporation, from 3.32 eV for undoped TiO2 to 3.15 eV, 3.25 eV and 3.29 eV for Tb3+, Sm3+ and Eu3+ doped TiO2. Photoluminescence of Eu3+ and Sm3+ originated from three different sites in TiO2 nanocrystals have been identified with the laser-excited site-selective spectroscopy measurements at 10 K. One site exhibits broad emission peaks, which are ascribed to the distorted lattice site near the surface. Other two sites, associated with the inner lattice, show significantly sharper fluorescence lines as a consequence of an ordered crystalline environment. The emission decays of Eu3+ and Sm3+ have similar values for inner-lattice sites and longer lifetimes for near-surface sites. The luminescence of Tb3+ doped TiO2 nanocrystals was immeasurably weak. (C) 2012 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Multisite luminescence of rare earth doped TiO2 anatase nanoparticles",
volume = "135",
number = "2-3",
pages = "1064-1069",
doi = "10.1016/j.matchemphys.2012.06.016"
}
Antić Ž, Krsmanović R, Nikolic MG, Marinović-Cincović M, Mitrić M, Polizzi S, Dramićanin M. Multisite luminescence of rare earth doped TiO2 anatase nanoparticles. Materials Chemistry and Physics. 2012;135(2-3):1064-1069
Antić, Ž., Krsmanović, R., Nikolic, M. G., Marinović-Cincović, M., Mitrić, M., Polizzi, S.,& Dramićanin, M. (2012). Multisite luminescence of rare earth doped TiO2 anatase nanoparticles.
Materials Chemistry and Physics, 135(2-3), 1064-1069.
https://doi.org/10.1016/j.matchemphys.2012.06.016
