Structural tuning of photoluminescence in nanoporous anodic alumina by hard anodization in oxalic and malonic acids
| Autor: | Lluis F. Marsal, Pilar Formentín, Josep Pallarès, María D. Alba, Josep Ferré-Borrull, Mohammad Mahbubur Rahman, Abel Santos |
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| Přispěvatelé: | Santos, Abel, Alba, Maria, Rahman, Mahbubur M, Formentin, Pilar, Ferre-Borrull, Josep, Pallares, Josep, Marsal, Lluis F |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Photoluminescence
Materials science Nanostructure Annealing (metallurgy) Materials Science Nanochemistry Nanotechnology Materials Science Multidisciplinary Porous alumina Heat treatment Physics Applied Materials Science(all) hard anodization General Materials Science geometric characteristics Nanoscience & Nanotechnology Nano Express Anodizing Nanoporous heat treatment Physics Condensed Matter Physics Geometric characteristics Membrane porous alumina pore widening Pore widening Science & Technology - Other Topics photoluminescence Biosensor Hard anodization |
| Zdroj: | Nanoscale Research Letters |
| ISSN: | 1556-276X 1931-7573 |
| Popis: | We report on an exhaustive and systematic study about the photoluminescent properties of nanoporous anodic alumina membranes fabricated by the one-step anodization process under hard conditions in oxalic and malonic acids. This optical property is analysed as a function of several parameters (i.e. hard anodization voltage, pore diameter, membrane thickness, annealing temperature and acid electrolyte). This analysis makes it possible to tune the photoluminescent behaviour at will simply by modifying the structural characteristics of these membranes. This structural tuning ability is of special interest in such fields as optoelectronics, in which an accurate design of the basic nanostructures (e.g. microcavities, resonators, filters, supports, etc.) yields the control over their optical properties and, thus, upon the performance of the nanodevices derived from them (biosensors, interferometers, selective filters, etc.) |
| Databáze: | OpenAIRE |
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