Growth of TiO sub(2) nanotube arrays in semiconductor porous anodic alumina templates

The aim of this research study is to produce high-quality TiO sub(2) nanotube arrays using porous alumina templates. The templates are fabricated through anodizing bulk aluminum foils which can be utilized for the production of thick alumina templates. To produce the nanotube arrays, the alumina tem...

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Bibliographic Details
Published in:Journal of materials research 2014-10, Vol.29 (20), p.2432-2440
Main Authors: Shoja, A, Nourmohammadi, A, Feiz, M H
Format: Article
Language:English
Subjects:
Aluminum oxide
Arrays
Channels
Deposition
Nanostructure
Scanning electron microscopy
Semiconductors
Titanium dioxide
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Summary:The aim of this research study is to produce high-quality TiO sub(2) nanotube arrays using porous alumina templates. The templates are fabricated through anodizing bulk aluminum foils which can be utilized for the production of thick alumina templates. To produce the nanotube arrays, the alumina template pores are filled with the precursor sol by applying a DC electric field. Then, the deposited nanotubes are heat treated at 320 degree C for 2 h and, subsequently, sintered for 2 h at 400 and 750 degree C to obtain nanotubes with pure anatase and rutile phases, respectively, as confirmed by x-ray diffraction data. Scanning and transmission electron microscopy (SEM and TEM) investigations show that the nanotubes have been deposited in the channels of the nanoporous alumina template. Also, SEM investigations show the existence of a vast area of TiO sub(2) nanotube arrays when we use semiconductor alumina templates.
ISSN:0884-2914
2044-5326
DOI:10.1557/jmr.2014.275