| Issue |
Europhys. Lett.
Volume 62, Number 4, May 2003
|
|
|---|---|---|
| Page(s) | 595 - 599 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2003-00392-7 | |
| Published online | 01 May 2003 | |
Formation of an array of isolated alumina nanotubes
1
National Laboratory of Solid State Microstructures and
Department of Physics Nanjing University - Nanjing 210093, PRC
2
Department of Physics and Materials Science, City University of
Hong Kong Kowloon, Hong Kong, PRC
Corresponding author: hkxlwu@nju.edu.cn
Received:
19
December
2002
Accepted:
12
March
2003
An ordered array of isolated alumina nanotubes was obtained using
an anodizing method of 
-based 
films, which was
composed of three steps: anodization of a -based
film under a constant dc voltage in sulfuric acid to
form a porous alumina film, followed by further anodization under
a pulse voltage for a short time to detach the alumina film from
the substrate, and final immersion of the alumina film
into dilute phosphoric acid for a few minutes to form an ordered
nanotube array. This kind of ordered arrays is expected to have
important applications as templates in fabricating ordered
nanostructures.
PACS: 82.45.-h – Electrochemistry and electrophoresis / 81.20.-n – Methods of materials synthesis and materials processing / 81.07.De – Nanotubes
© EDP Sciences, 2003
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