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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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Ojha, Nirajan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2021Preparation of glass-based composites with green upconversion and persistent luminescence using modified direct doping methodcitations
- 2021Tailoring the glass composition to increase the thermal stability without impacting the crystallization behavior of oxyfluorophosphate glasscitations
- 2020Effect of heat-treatment on the upconversion of NaYF4:Yb3+, Er3+ nanocrystals containing silver phosphate glasscitations
- 2020Nucleation and growth behavior of Er3+doped oxyfluorophosphate glassescitations
- 2020Investigation of Upconversion Properties from Active Crystals in Oxyfluorophosphate Glasses
- 2019Phosphate glasses with blue persistent luminescence prepared using the direct doping methodcitations
- 2019Fabrication and characterization of new phosphate glasses and glass-ceramics suitable for drawing optical and biophotonic fibers
- 2019Sintered silica bodies with persistent luminescencecitations
- 2019Spectroscopic properties of Er3+-doped particles-containing phosphate glasses fabricated using the direct doping methodcitations
- 2019Spectroscopic properties of Er3+ -doped particles-containing phosphate glasses fabricated using the direct doping methodcitations
- 2018Influence of the phosphate glass melt on the corrosion of functional particles occurring during the preparation of glass-ceramicscitations
- 2018Decomposition of persistent luminescent microparticles in corrosive phosphate glass meltcitations
- 2016Borosilicate glass with enhanced hot forming properties and conversion to hydroxyapatite
Places of action
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article
Effect of heat-treatment on the upconversion of NaYF4:Yb3+, Er3+ nanocrystals containing silver phosphate glass
Abstract
<p>Novel NaYF<sub>4</sub>:Yb<sup>3+</sup>, Er<sup>3+</sup> nanocrystals containing phosphate glass with composition 83.25NaPO<sub>3</sub>–9.25NaF-5ZnO-2.5Ag<sub>2</sub>O (in mol%) was prepared by adding the NaYF<sub>4</sub>:Yb<sup>3+</sup>, Er<sup>3+</sup> nanocrystals in the glass using the direct doping method. The optical and luminescence properties of this new glass are presented and discussed. The newly developed glass exhibits visible emission under 980 nm pumping with high intensity confirming the presence of the NaYF<sub>4</sub>:Yb<sup>3+</sup>, Er<sup>3+</sup> nanocrystals in the glass. From the absorption spectrum of the as-prepared glass, it is showed that the as-prepared glasses contains already Ag nanoparticles which are thought to precipitate due to the decomposition of some of the NaYF<sub>4</sub>:Yb<sup>3+</sup>, Er<sup>3+</sup> nanocrystals occurring during the glass preparation. A heat treatment of the glass was found to lead to the migration of Ag species at the surface of the glass as evidenced using SEM and to a decrease of the intensity of the upconversion mostly due to an increase of the inter defects in the NaYF<sub>4</sub>:Yb<sup>3+</sup>, Er<sup>3+</sup> nanocrystals due to the heat treatment.</p>