The study describes the interference color of anodic TiO2 nanotube arrays on titanium foil. TiO2 nanotube arrays are prepared by oxidizing titanium foil in an aqueous electrolyte solution of hydrofluoric acid (HF, 0.5 wt.%). The morphologies of the oxide film are characterized by FESEM. The empirical color properties are obtained using the L*a*b* system. The different interference colors of oxidized Ti samples are obtained depending on the anodization time. The anodization time clearly indicates a strong effect on the reflectance at the visible wavelength region, thus confirming the observed color differences. Consequently, the interference colors can be controlled by the anodization time. By observing the coloration of Ti during the anodization, the interference colors can be utilized to identify the thickness of oxide layer and the formation of nanotubes on Ti sheet.
|Journal||Advanced Materials Research|
|Publication status||Published - 1 Jan 2014|
|MoE publication type||A1 Journal article-refereed|
|Event||2012 International Conference on Advanced Material and Manufacturing Science, ICAMMS 2012 - Beijing, China|
Duration: 20 Dec 2012 → 21 Dec 2012
- Interference color
- Nanotube arrays