Roughness effect on photoluminescence of cerium doped zinc oxide thin films
| Autor: | K. Bahedi, N. Gaumer, L. Dghoughi, M. Alaoui Lamrani, Z. Sofiani, M. El Jouad, André Monteil, Bouchta Sahraoui, T. El Habbani, Mohammed Addou, S. Dabos, N. Fellahi |
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| Přispěvatelé: | Propriétés Optiques des Matériaux et Applications (POMA), Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA) |
| Rok vydání: | 2009 |
| Předmět: |
Nonlinear optics
Photoluminescence Materials science [SDV]Life Sciences [q-bio] Analytical chemistry chemistry.chemical_element 02 engineering and technology 01 natural sciences Inorganic Chemistry Surface roughness Optics Zinc oxide 0103 physical sciences Electrical and Electronic Engineering Physical and Theoretical Chemistry Thin film Spectroscopy 010302 applied physics Dopant business.industry Organic Chemistry Doping Cerium 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials chemistry 0210 nano-technology Luminescence business |
| Zdroj: | Optical Materials Optical Materials, Elsevier, 2009, 31 (9), pp.1357-1361. ⟨10.1016/j.optmat.2008.10.031⟩ |
| ISSN: | 0925-3467 |
| Popis: | International audience; Undoped and cerium doped zinc oxide thin films have been prepared by spray pyrolysis technique. The influence of Ce as doping agent on the optical and nonlinear optical properties was carefully investigated using transmission, X-ray diffraction, photoluminescence, atomic force microscopy (AFM), and third harmonic generation (THG). It has been found a deep correlation between the surface roughness and the optical properties. In fact the roughness deteriorates the luminescence and nonlinear response, in a sense that the highest luminescence intensity and nonlinear susceptibility χ(3) are obtained for the smoothest layer.Doped layers are characterized with a high visible luminescence, attributed to cerium transitions, and susceptibilities in the range of 6.38 × 10−13 esu. |
| Databáze: | OpenAIRE |
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