Multiple Nanowire Species Synthesized on a Single Chip by Selectively Addressable Horizontal Nanochannels

Xiang, Ying and Keilbach, Andreas and Moreno Codinachs, Lia and Nielsch, Kornelius and Abstreiter, Gerhard and Fontcuberta i Morral, Anna and Bein, Thomas. (2010) Multiple Nanowire Species Synthesized on a Single Chip by Selectively Addressable Horizontal Nanochannels. Nano Letters, 10 (4). pp. 1341-1346. ISSN 1530-6984

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Abstract

The synthesis of horizontal porous anodic alumina (PAA) structures with individually addressable channel systems is demonstrated. This was achieved by developing a multicontact design of aluminum finger structures (two to five contacts) on silicon wafers. These aluminum contacts were electrically isolated from each other, allowing the individual anodization of each contact at different conditions. This way it is possible to synthesize different pore diameters, pore densities, and channel lengths on a single chip. Scanning electron microscopy (SEM) characterization revealed that the neighboring contacts are not significantly altered during the anodization procedure. After successful barrier-layer thinning, the individual finger structures of each contact were filled by electrodeposition and thermal chemical vapor deposition. The resulting metal (Au, Cu, Ni, Co) and semiconductor (Te, Si) nanowires embedded within the porous anodic alumina mold were characterized by SEM and energy dispersive X-ray measurements. The multicontact fabrication results open a new route toward complex nanoelectronic and sensing applications.

Item Type: Article
Additional Information: Abstract reprinted by permission from American Chemical Society. Copyright 2010.
Uncontrolled Keywords: silicon wafers, copper, porous anodic alumina (PAA),
InterNano Taxonomy: Nanoscale Objects and Nanostructured Materials > Nanowires
Nanomanufacturing Processes > Deposition of Nanostructured Films or Nanostructures > Chemical vapor deposition (CVD)
Nanomanufacturing Processes > Deposition of Nanostructured Films or Nanostructures > Electrodeposition
Areas of Application > Electronics and Semiconductor Industries
Collections: Nanomanufacturing Research Collection
Related URLs:
Depositing User: Mr. Richard L Rosen
Date Deposited: 27 Jul 2010 18:18
Last Modified: 27 Jul 2010 18:21
URI: http://eprints.internano.org/id/eprint/543

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