| Autor: |
Rahman, Mohammad Mahbubur, Garcia-Caurel, Enric, Santos, Abel, Marsal, Lluis F., Pallares, Josep, Ferre-Borrull, Josep |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Nanoscale Research Letters 7 (2012) 474 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1186/1556-276X-7-474 |
| Popis: |
A detailed study of the pore-widening rate of nanoporous anodic alumina layers as a function of the anodization voltage was carried out. The study focuses on samples produced under the same electrolyte and concentration but different anodization voltages within the self-ordering regime. By means of ellipsometry-based optical characterization, it is shown that in the porewidening process, the porosity increases at a faster rate for lower anodization voltages. This opens the possibility of obtaining three-dimensional nanostructured nanoporous anodic alumina with controlled thickness and refractive index of each layer, and with a refractive index difference of up to 0.24 between layers, for samples produced with oxalic acid electrolytes. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
