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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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Hungerford, G.
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Topics
Publications (7/7 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
- 2016Time resolved emission spectra and electron paramagnetic resonance studies of Gd<sup>3+</sup> doped calcium phosphate glassescitations
- 2016Structural, UV-VIS-NIR luminescence and decay associated spectral profiles of Sm<sup>3+</sup> doped calcium phosphate glass
- 2009Local variation of the dielectric properties of poly(vinylidene fluoride) during the α- to β-phase transformationcitations
- 2009Absorption and Emission Analysis of RE3+(Sm3+ and Dy3+): Lithium Boro Tellurite Glassescitations
- 2007Effect of the labelling ratio on the photophysics of fluorescein isothiocyanate (FITC) conjugated to bovine serum albumincitations
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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.