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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Nandyala, Sh
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Publications (4/4 displayed)
- 2020Time-resolved and fluorescence excitation-emission matrix measurements of lanthanide (Gd3+, Tb(3+)and Dy3+) doped silver-zinc borate glassescitations
- 2018Development of bioactive tellurite-lanthanide ions-reinforced hydroxyapatite composites for biomedical and luminescence applicationscitations
- 2013Development and characterization of lanthanides doped hydroxyapatite composites for bone tissue applicationcitations
- 2012Development and Characterization of Ag2O-Doped ZnLB Glasses and Biological Assessment of Ag2O-ZnLB-Hydroxyapatite Compositescitations
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article
Time-resolved and fluorescence excitation-emission matrix measurements of lanthanide (Gd3+, Tb(3+)and Dy3+) doped silver-zinc borate glasses
Abstract
This paper reports the time-resolved luminescence and excitation-emission matrix measurements of three different lanthanide ions Gadolinium, Gd3+ (GdG), Terbium, Tb3+ (TbG) and Dysprosium, Dy3+(DyG) doped silver-zinc borate glasses. The GdG and TbG glasses were excited at 267 nm and 371 nm, respectively, and time-resolved luminescence measurements used to evaluate how the randomness of the network can influence the lanthanide ion emission. The GdG glass exhibited ultraviolet radiation (UVR) at around 310 nm with a P-6(7/2) -> S-8(7/2) transition. Similarly, a sharp band at 545 nm with a D-5(4) -> F-7(5) transition provided a bright green coloured emission from the TbG glass. To further elucidate the Dy3+ emission, steady-state luminescence (SSL), excitation-emission matrix (EEM) studies and decay associated spectra (DAS) were obtained. These showed a bright yellow emission transition (F-4(7/2 )-> H-6(9/2)), 571 nm composed of species with decay times of 0.062, 0.148, 0.337 and 0.701 ms. Among them, an ideal decay time was observed at 0.701 ms along with a dependency of the DyG glass lifetimes on the emission intensity.