Excitation of anodized alumina films with a light source
| Autor: | Martin Aggerbeck, Stela Canulescu, Rechendorff, K., Jørgen Schou, Rajan Ambat |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Zdroj: | Aggerbeck, M, Canulescu, S, Rechendorff, K, Schou, J & Ambat, R 2012, ' Excitation of anodized alumina films with a light source ', 8th International Conference on Photon-Excited Processes and Apllication (IPECA 2012), Rochester, NY, United States, 12/08/2012-17/08/2012 . Technical University of Denmark Orbit |
| Popis: | Optical properties of anodized aluminium alloys were determined by optical diffuse reflectance spectroscopy of such films. Samples with different concentrations of dopants were excited with a white-light source combined with an integrating sphere for fast determination of diffuse reflectance. The UV-VIS reflectance of Ti-doped anodized aluminium films was measured over the wavelength range of 200 nm to 900 nm. Titanium doped-anodized aluminium films with 5-15 wt% Ti were characterized. Changes in the diffuse light scattering of doped anodized aluminium films, and thus optical appearance, with doping are discussed. Using the Kubelka-Munk model on the diffuse reflectance spectra of such films, the bandgap Eg of the oxide alloys can be determined. |
| Databáze: | OpenAIRE |
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