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Study of Al2O3/TiO2 reflectivity enhancing bi-layer films on bright aluminium substrates |
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| Authors: | L Cecchetto D Riassetto |
| Institution: | a Satma, Alcan Group, ZI Goncelin, 38570 Goncelin, France b LMGP, INPG-Minatec 3, Parvis Louis Neel, BP 257, 38016 Grenoble Cedex 1, France |
| Abstract: | Al2O3/TiO2 bi-layer films on aluminium substrates have been obtained by combining anodising and TiO2 sol-gel deposition. The reflectivity enhancing properties of these Al2O3/TiO2 bi-layer films have been studied in relation to the refractive index and thickness of the Al2O3 and TiO2 single-layers. It is shown that a significant improvement of reflectivity can be achieved by a proper optimisation of the bi-layer elaboration parameters. |
| Keywords: | Aluminium Reflectivity Al2O3 layers TiO2 layers Anodising Sol-gel process |
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