Effects of rare-earth concentration and heat-treatment on the structural and luminescence properties of europium-doped zirconia solâ??gel planar waveguides
| Autor: | O. Robbe, V. Ferreiro, Sylvia Turrell, M. Bouazaoui, Gilles Ehrhart, Rachid Mahiou, Bruno Capoen |
|---|---|
| Přispěvatelé: | Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 (LASIRE), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Centrale Lille Institut (CLIL), Centre d'Etudes et de Recherches Lasers et Applications (CERLA), Université de Lille, Sciences et Technologies, Laboratoire de structures et propriétés de l'état solide - UMR 8008 (LSPES), Université de Lille, Sciences et Technologies-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Matériaux Inorganiques (LMI), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Clermont Université-SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Materials science
Photoluminescence Analytical chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Dip-coating Inorganic Chemistry symbols.namesake Cubic zirconia Electrical and Electronic Engineering Physical and Theoretical Chemistry Spectroscopy Sol-gel Zirconium [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] Organic Chemistry [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry symbols [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph] 0210 nano-technology Raman spectroscopy Luminescence Europium [CHIM.OTHE]Chemical Sciences/Other |
| Zdroj: | Optical Materials Optical Materials, Elsevier, 2007, 29, pp.1723-1730. ⟨10.1016/j.optmat.2006.09.006⟩ Optical Materials, 2007, 29, pp.1723-1730. ⟨10.1016/j.optmat.2006.09.006⟩ |
| ISSN: | 0925-3467 1873-1252 |
| DOI: | 10.1016/j.optmat.2006.09.006⟩ |
| Popis: | Sol–gel zirconia films doped with Eu 3+ concentrations ranging from 0.2% to 10%, were prepared by dip-coating a solution of the starting precursor, zirconium n-propoxide, ethanol, methanol, water, acetic acid and europium nitrate on glass and SiO 2 /Si wafer substrates. The ZrO 2 sol thus synthesized remains stable for several months. Structural characterization of the zirconia films was performed using Waveguide Raman Spectroscopy. These films present an amorphous phase up to an annealing temperature of 400 °C. Above 400 °C the matrix evolves towards a metastable tetragonal phase. This transformation was found to depend on the concentration of Eu 3+ ions. Indeed, while for samples doped with 0.2% Eu 3+ this transformation occurs around 450 °C, in the case of 10% of Eu 3+ ions, the transition is pushed off to 500 °C. The optical losses of these waveguides were found to be about 0.3 dB cm −1 for samples annealed at 400 °C. The surfaces of the films were characterized using Atomic Force Microscopy and the roughness was measured. The Eu-doped films were investigated using Waveguide Photoluminescence Spectroscopy. The dynamical behaviour of the Eu 3+ emissions indicated that concentration quenching effect is not observed even when the matrix is doped up to 10%. |
| Databáze: | OpenAIRE |
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