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Nanostructure of the nanopores in anodic aluminum oxide films used as template to fabricate Ag nanowires

Published online by Cambridge University Press:  31 January 2011

Junping Zhang ,
Jerrold E. Kielbasa  and
David L. Carroll
David L. Carroll*
Affiliation:
Center for Nanotechnology and Molecular Materials and Department of Physics, Wake Forest University, Winston Salem, North Carolina 27109
*
a) Address all correspondence to this author. e-mail: carroldl@wfu.edu
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Abstract

Well-ordered nanoporous anodic aluminum oxide (AAO) templates have been prepared on aluminum substrates by a two-step anodization process. A voltage-controlled branching method was successfully used to thin the barrier layer of the AAO template. The nanostructures of the pores, the branched subpores, and the barrier layer in the AAO template were studied in association with the anodization process and barrier layer thinning methods. Results demonstrate the voltage-controlled branching method is a facile and effective way to thin the barrier layer. Uniform silver nanowires can be easily fabricated using alternating current (ac) electrodeposition into the pores of AAO after redressing the barrier layer.

Keywords

NanoscaleNanostructureScanning electron microscopy (SEM)
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 5 , May 2009 , pp. 1735 - 1740
Copyright
Copyright © Materials Research Society 2009

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