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https://hdl.handle.net/2440/86649
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Type: | Journal article |
Title: | In situ monitored engineering of inverted nanoporous anodic alumina funnels: on the precise generation of 3D optical nanostructures |
Author: | Santos, A. Kumeria, T. Wang, Y. Losic, D. |
Citation: | Nanoscale, 2014; 6(17):9991-9999 |
Publisher: | Royal Society of Chemistry |
Issue Date: | 2014 |
ISSN: | 2040-3364 2040-3372 |
Statement of Responsibility: | Abel Santos, Tushar Kumeria, Ye Wang and Dusan Losic |
Abstract: | Herein, we present an innovative approach to generate a novel type of 3D optical nanostructures based on nanoporous anodic alumina (NAA), the so-called inverted nanoporous anodic alumina funnels (INAAFs). This electrochemical approach takes advantage of the differential dissolution rate of NAA with the annealing temperature, which enables the in-depth engineering of nanopores. The structural engineering of these 3D nanostructures is monitored in situ by reflectometric interference spectroscopy through changes in the effective optical thickness of NAA, making it possible to precisely control the formation of INAAFs in real-time. The resulting INAAFs are optical nanostructures featuring a stratified structure of well-defined cylindrical nanopores with increasing pore diameter from top to bottom. As a result of their geometric characteristics and optical properties, INAAFs are envisaged for replicating novel nanostructures and developing optical and photonic devices. |
Rights: | © Royal Society of Chemistry 2014 |
DOI: | 10.1039/c4nr01422g |
Grant ID: | http://purl.org/au-research/grants/arc/DE140100549 http://purl.org/au-research/grants/arc/FT110100711 |
Published version: | http://dx.doi.org/10.1039/c4nr01422g |
Appears in Collections: | Aurora harvest 2 Chemical Engineering publications |
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