| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Poelman, Dirk
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Ratiometric dual-emitting thermometers based on rhodamine B dye-incorporated (nano) curcumin periodic mesoporous organosilicas for bioapplicationscitations
- 2024Evolution of low Z-elements in a Ni/MgFeAlO 4 catalyst during reaction : insight from in situ XRScitations
- 2024Unleashing the glow : upconverting nanoparticles recharge persistent luminescent materials - applications in 3D-printing and optical codingcitations
- 2023Flexible and luminescent polymer nanocomposite films (YPO4:Pr3+/ polystyrene) : investigation of structural, morphological and photoluminescence properties for solid-state lighting applicationscitations
- 2023The exact morphology of metal organic framework MIL-53(Fe) influences its photocatalytic performancecitations
- 2023Thermoluminescence dosimetric and kinetic characterization of Pakistani fluorite after β irradiationcitations
- 2023Crystalline tin disulfide by low-temperature plasma-enhanced 2 atomic layer deposition as an electrode material for Li-ion batteries 3 and CO2 electroreductioncitations
- 2023High temperature H2S removal via CO2-assisted chemical looping over ZrO2-modified Fe2O3citations
- 2023Plasma-enhanced atomic layer deposition of crystalline Ga2S3 thin filmscitations
- 2023Plasma-enhanced atomic layer deposition of crystalline Ga2S3 thin filmscitations
- 2022Photocatalytic nanocomposite membranes for environmental remediationcitations
- 2021Young's modulus of thin SmS films measured by nanoindentation and laser acoustic wavecitations
- 2021Emergence of Metallic Conductivity in Ordered One-Dimensional Coordination Polymer Thin Films upon Reductive Dopingcitations
- 2020A new microwave approach for the synthesis of green emitting Mn2+-doped ZnAl2O4citations
- 2020A new microwave approach for the synthesis of green emitting Mn 2+ -doped ZnAl 2 O 4 :A detailed study on its structural and optical propertiescitations
- 2019SmS/EuS/SmS tri-layer thin films : the role of diffusion in the pressure triggered semiconductor-metal transitioncitations
- 2019Sol-gel syntheses of photocatalysts for the removal of pharmaceutical products in watercitations
- 2018Visible-enhanced photocatalytic performance of CuWO4/WO3 hetero-structurescitations
- 2014Crystal Structure and Luminescent Properties of R2-xEux(MoO4)(3) (R = Gd, Sm) Red Phosphorscitations
- 2013Cs7Nd11(SeO3)(12)Cl-16: first noncentrosymmetric structure among alkaline-metal lanthanide selenite halidescitations
- 2013Combining optical and electrical studies to unravel the effect of Sb doping on CIGS solar cell
- 2012The configuration of rare earth centers in nitridosilicates: an x-ray absorption and optical investigation
- 2010Structure and luminescence of (Ca,Sr)2SiS4:Eu2+ phosphorscitations
- 2008Cathodoluminescence mapping with an energy-dispersive x-ray detector: principle, simulation and application
- 2008Synthesis and photoluminescence characteristics of Al2O3 thin films doped with (Ca,Sr)S:Eu2+
- 2008Cathodoluminescence mapping with an EDX detector: principle, simulation and application
- 2007Effect of microstructure and crystallinity on the photocatalytic activity of TiO2 thin films deposited by dc magnetron sputtering
Places of action
| Organizations | Location | People |
|---|
document
Synthesis and photoluminescence characteristics of Al2O3 thin films doped with (Ca,Sr)S:Eu2+
Abstract
Al2O3 condensed solutions were synthesized by a nonaqueous sol-gel process using aluminium isopropoxide as precursor, anhydrous ethanol as solvent, nitric acid as catalyst, and acetylacetone as chelating agent [1]. Orange to red-emitting (Ca,Sr)S:Eu2+ particles were prepared by a solvothermal route which yields monodisperse, single crystalline particles with typical size between 0.5 and 2µm [2]. For practical use, the stability of these sulfides in the presence of moist air is limited. Hence a coating of the particles and/or an incorporation in an inert thin film is preferred. Although a sol-gel process is an attractive route for this purpose, a non-aqueous synthesis method is required. Regarding the choice of this matrix material, it should be thermally and chemically stable, and also be transparent to the excitation and emission light of the incorporated particles.(Ca,Sr)S:Eu2+ particles suspended in ethanol were mixed into a viscous Al2O3 gel. It was observed that the (Ca,Sr)S:Eu2+ particles were reasonably stable in the gel. A silicon substrate was then coated with this mixture using spin coating followed by calcination at 500oC in air. The luminescence and structural properties of these (Ca,Sr)S:Eu2+ doped Al2O3 thin films were investigated. For the case of SrS:Eu2+ doped Al2O3 thin films, a broad emission band at 616nm was observed in photoluminescence, which is the same as the emission band ofbulk SrS:Eu2+ [2].The morphology of the particles and the distribution in the Al2O3 matrix was studied with scanning electron microscopy. Elemental mappings (using EDX) were correlated with spectrally resolved cathodoluminescence mappings. Degradation of sulfide particles could be monitored by the presence of a violet emission band, typical for Eu2+-doped sulfates. Finally the stability against hydrolysis of the (Ca,Sr)S:Eu2+-doped Al2O3 thin films was evaluated.