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Variable Thickness Porous Anodic Alumina/Metal Film Bilayers for Optimization of Plasmonic Scattering by Nanoholes on Mirror
[Image: see text] Continuously variable thickness porous anodic aluminum oxide (PAAO) films were obtained using electrochemical oxidation of bulk aluminum sheet while both electrodes were simultaneously withdrawn from the electrolyte solution. The thickness gradient was controlled by the withdrawal...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6641977/ https://www.ncbi.nlm.nih.gov/pubmed/31458778 http://dx.doi.org/10.1021/acsomega.8b00420 |
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author | Poplausks, Raimonds Jevdokimovs, Daniels Malinovskis, Uldis Erts, Donats Prikulis, Juris |
author_facet | Poplausks, Raimonds Jevdokimovs, Daniels Malinovskis, Uldis Erts, Donats Prikulis, Juris |
author_sort | Poplausks, Raimonds |
collection | PubMed |
description | [Image: see text] Continuously variable thickness porous anodic aluminum oxide (PAAO) films were obtained using electrochemical oxidation of bulk aluminum sheet while both electrodes were simultaneously withdrawn from the electrolyte solution. The thickness gradient was controlled by the withdrawal rate (1–10 mm/min range) and thickness variation demonstrated from below 50 nm to above 1 micrometer. The thickness increased linearly with the sample lateral coordinate, whereas the nanopore structure (diameter and interpore distance) remained unchanged. Effects of the initial pore growth and capillary forces are discussed. The presented method can be used for tuning optimal PAAO thickness for optical and other applications as exemplified by finding maximum plasmonic scattering in structured Al–PAAO–Au multilayers. Enhanced scattering from porous gold film separated by a specific-thickness PAAO layer from aluminum mirror surface is demonstrated. |
format | Online Article Text |
id | pubmed-6641977 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-66419772019-08-27 Variable Thickness Porous Anodic Alumina/Metal Film Bilayers for Optimization of Plasmonic Scattering by Nanoholes on Mirror Poplausks, Raimonds Jevdokimovs, Daniels Malinovskis, Uldis Erts, Donats Prikulis, Juris ACS Omega [Image: see text] Continuously variable thickness porous anodic aluminum oxide (PAAO) films were obtained using electrochemical oxidation of bulk aluminum sheet while both electrodes were simultaneously withdrawn from the electrolyte solution. The thickness gradient was controlled by the withdrawal rate (1–10 mm/min range) and thickness variation demonstrated from below 50 nm to above 1 micrometer. The thickness increased linearly with the sample lateral coordinate, whereas the nanopore structure (diameter and interpore distance) remained unchanged. Effects of the initial pore growth and capillary forces are discussed. The presented method can be used for tuning optimal PAAO thickness for optical and other applications as exemplified by finding maximum plasmonic scattering in structured Al–PAAO–Au multilayers. Enhanced scattering from porous gold film separated by a specific-thickness PAAO layer from aluminum mirror surface is demonstrated. American Chemical Society 2018-05-30 /pmc/articles/PMC6641977/ /pubmed/31458778 http://dx.doi.org/10.1021/acsomega.8b00420 Text en Copyright © 2018 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Poplausks, Raimonds Jevdokimovs, Daniels Malinovskis, Uldis Erts, Donats Prikulis, Juris Variable Thickness Porous Anodic Alumina/Metal Film Bilayers for Optimization of Plasmonic Scattering by Nanoholes on Mirror |
title | Variable Thickness Porous Anodic Alumina/Metal Film
Bilayers for Optimization of Plasmonic Scattering by Nanoholes on
Mirror |
title_full | Variable Thickness Porous Anodic Alumina/Metal Film
Bilayers for Optimization of Plasmonic Scattering by Nanoholes on
Mirror |
title_fullStr | Variable Thickness Porous Anodic Alumina/Metal Film
Bilayers for Optimization of Plasmonic Scattering by Nanoholes on
Mirror |
title_full_unstemmed | Variable Thickness Porous Anodic Alumina/Metal Film
Bilayers for Optimization of Plasmonic Scattering by Nanoholes on
Mirror |
title_short | Variable Thickness Porous Anodic Alumina/Metal Film
Bilayers for Optimization of Plasmonic Scattering by Nanoholes on
Mirror |
title_sort | variable thickness porous anodic alumina/metal film
bilayers for optimization of plasmonic scattering by nanoholes on
mirror |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6641977/ https://www.ncbi.nlm.nih.gov/pubmed/31458778 http://dx.doi.org/10.1021/acsomega.8b00420 |
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