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.
|Number of pages||1|
|Publication status||Published - 2012|
|Event||8th International Conference on Photon-Excited Processes and Apllication (IPECA 2012) - Rochester, NY, United States|
Duration: 12 Aug 2012 → 17 Aug 2012
|Conference||8th International Conference on Photon-Excited Processes and Apllication (IPECA 2012)|
|Period||12/08/2012 → 17/08/2012|