Publication detail

Formation of Nanowire and Nanotube Arrays Using Nanoporous Anodic Alumina Films as Templates

KLOSOVÁ, K. HUBÁLEK, J.

Original Title

Formation of Nanowire and Nanotube Arrays Using Nanoporous Anodic Alumina Films as Templates

English Title

Formation of Nanowire and Nanotube Arrays Using Nanoporous Anodic Alumina Films as Templates

Type

journal article

Language

en

Original Abstract

Aligned arrays of nanostructures have recently attracted great interest because of their unique properties and potential use in a broad range of technological applications such as microsensors, cooling systems, optoelectronics, etc. One of the simplest and low-cost methods of fabricating nanostructures is template-assisted electrochemical deposition. This method also enables good control over the nanostructure dimensions and can be used to deposit a wide range of materials. The proposed method consists of two steps. At first, a non-conductive nanoporous template has to be created and then nanostructures are formed by electrodeposition into the template which is coated with a metal on one of its sides or placed on a metal surface. After dissolution of the template, metal nanostructures are obtained. The nanoporous alumina template is created by anodization of a thin aluminium film under specific conditions which favour the self-assembling ability of aluminium. Both nanowires and nanotubes with various wall-thicknesses can be created using this method. The nanotubes can be produced either by a double-templating approach used by Sander et al. or by our single-templating approach. The first one is based on creation of nanowires (nanorods) by electroplating into the alumina template, subsequent electroplating of another metal, from which the nanotubes are created, and dissolution of the previously created metal nanowires. The latter one consists in the creation of the nanotubes by single electroplating into the alumina template under very specific conditions. It is assumed that in the case of the single-templating approach, the nanotubes are formed by bubbles of hydrogen evolving from the cathode (metal surface). In spite of being lesser known, this method is simpler and less time consuming.

English abstract

Aligned arrays of nanostructures have recently attracted great interest because of their unique properties and potential use in a broad range of technological applications such as microsensors, cooling systems, optoelectronics, etc. One of the simplest and low-cost methods of fabricating nanostructures is template-assisted electrochemical deposition. This method also enables good control over the nanostructure dimensions and can be used to deposit a wide range of materials. The proposed method consists of two steps. At first, a non-conductive nanoporous template has to be created and then nanostructures are formed by electrodeposition into the template which is coated with a metal on one of its sides or placed on a metal surface. After dissolution of the template, metal nanostructures are obtained. The nanoporous alumina template is created by anodization of a thin aluminium film under specific conditions which favour the self-assembling ability of aluminium. Both nanowires and nanotubes with various wall-thicknesses can be created using this method. The nanotubes can be produced either by a double-templating approach used by Sander et al. or by our single-templating approach. The first one is based on creation of nanowires (nanorods) by electroplating into the alumina template, subsequent electroplating of another metal, from which the nanotubes are created, and dissolution of the previously created metal nanowires. The latter one consists in the creation of the nanotubes by single electroplating into the alumina template under very specific conditions. It is assumed that in the case of the single-templating approach, the nanotubes are formed by bubbles of hydrogen evolving from the cathode (metal surface). In spite of being lesser known, this method is simpler and less time consuming.

Keywords

anodic alumina template, nanopores, nanorods, nanostructures, nanotubes, nanowires

RIV year

2008

Released

01.01.2008

Publisher

Technická univerzita v Košicích

Location

Košice

Pages from

256

Pages to

260

Pages count

5

BibTex


@article{BUT48059,
  author="Kateřina {Klosová} and Jaromír {Hubálek}",
  title="Formation of Nanowire and Nanotube Arrays Using Nanoporous Anodic Alumina Films as Templates",
  annote="Aligned arrays of nanostructures have recently attracted great interest because of their unique properties and potential use in a broad range of technological applications such as microsensors, cooling systems, optoelectronics, etc. One of the simplest and low-cost methods of fabricating nanostructures is template-assisted electrochemical deposition. This method also enables good control over the nanostructure dimensions and can be used to deposit a wide range of materials. The proposed method consists of two steps. At first, a non-conductive nanoporous template has to be created and then nanostructures are formed by electrodeposition into the template which is coated with a metal on one of its sides or placed on a metal surface. After dissolution of the template, metal nanostructures are obtained. The nanoporous alumina template is created by anodization of a thin aluminium film under specific conditions which favour the self-assembling ability of aluminium. Both nanowires and nanotubes with various wall-thicknesses can be created using this method. The nanotubes can be produced either by a double-templating approach used by Sander et al. or by our single-templating approach. The first one is based on creation of nanowires (nanorods) by electroplating into the alumina template, subsequent electroplating of another metal, from which the nanotubes are created, and dissolution of the previously created metal nanowires. The latter one consists in the creation of the nanotubes by single electroplating into the alumina template under very specific conditions. It is assumed that in the case of the single-templating approach, the nanotubes are formed by bubbles of hydrogen evolving from the cathode (metal surface). In spite of being lesser known, this method is simpler and less time consuming.",
  address="Technická univerzita v Košicích",
  chapter="48059",
  institution="Technická univerzita v Košicích",
  journal="Acta Metallurgica Slovaca",
  number="6/2007",
  volume="13",
  year="2008",
  month="january",
  pages="256--260",
  publisher="Technická univerzita v Košicích",
  type="journal article"
}