| People | Locations | Statistics |
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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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Guyot, Yannick
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Energy exchange between Nd 3+ and Er 3+ centers within molecular complexescitations
- 2023Cr-doped Al 2 O 3 –YAG binary and Al 2 O 3 –YAG–ZrO 2 ternary eutectic materials crystallized by the micro pulling down technique and their characterization
- 2022Spectroscopic properties and crystal-field effects in Er3+-doped tellurite and phosphate glass-ceramicscitations
- 2020Quest to enhance up-conversion efficiency: a comparison of anhydrous vs. hydrous synthesis of NaGdF4: Yb3+ and Tm3+ nanoparticlescitations
- 2019Precursor-directed synthesis of upconverting LiYF4:Yb3+, Tm3+ nanoparticles and their composites designed for near infra-red driven photocatalysis
- 2015Emission tunability and local environment in europium-doped OH--free calcium aluminosilicate glasses for artificial lighting applicationscitations
- 2014Investigation of local environment around rare earths (La and Eu) by fluorescence line narrowing during borosilicate glass alterationcitations
- 2014Thermal and Optical Characterization of Undoped and Neodymium-Doped Y3ScAl4O12 Ceramicscitations
- 2014Thermal and Optical Characterization of Undoped and Neodymium-Doped Y3ScAl4O12 Ceramicscitations
- 2014Polycrystalline Yb3+-Er3+-co-doped YAG: Fabrication, TEM-EDX characterization, spectroscopic properties, and comparison with the single crystalcitations
- 2002Effect of the introduction of Na2B4O7 on erbium luminescence in tellurite glassescitations
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article
Cr-doped Al 2 O 3 –YAG binary and Al 2 O 3 –YAG–ZrO 2 ternary eutectic materials crystallized by the micro pulling down technique and their characterization
Abstract
International audience ; Cr-doped Al2O3-YAG and Al2O3-YAG-ZrO2 eutectic ceramics rods of 3 mm in diameter were solidified from the melt by a micro-pulling down (& mu;-PD) technique. The Cr dopant affects the microstructure, morphology, and lattice parameters of the as-grown eutectics. As a function of the dopant, the coloration, morphology, microstructure, and luminescence were investigated. Whatever the Cr-dopant concentration, mainly two phases (Al2O3-YAG) in the case of the binary system and three phases (Al2O3-YAG-ZrO2) in the case of the ternary system were observed. The Chinese script microstructure and colony boundaries are observed in ternary eutectics. Al2O3 and YAG phases show faceted morphologies, but for the ZrO2 phase, growth tends to a weakly faceted manner and forms rods or lamellae. The hydrostatic stress of binary eutectics is less than that of ternary eutectics with same Cr dopant concentration due to the distribution of ZrO2 particles in the microstructure affected by residual stresses. The spectroscopic properties of the Cr-doped binary and ternary eutectic show that Cr3+ ions exist in both Al2O3 and YAG phases in octahedral sites.