Please use this identifier to cite or link to this item: http://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
RMID: 0030007626
DOI: 10.1039/c4nr01422g
Grant ID: http://purl.org/au-research/grants/arc/DE140100549
http://purl.org/au-research/grants/arc/FT110100711
Appears in Collections:Chemical Engineering publications

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