Back to Search Start Over

Engineered fabrication of ordered arrays of Au-NiO-Au nanowires.

Authors :
Perego, J. Daniele
Franz, Silvia
Bestetti, Massimiliano
Cattaneo, Laura
Brivio, Stefano
Tallarida, Grazia
Spiga, Sabina
Source :
Nanotechnology; 2013, Vol. 24 Issue 4, p1-8, 8p
Publication Year :
2013

Abstract

In the present paper, a novel method to fabricate ordered arrays of Au/NiO/Au nanowires is described, with the aim of filling the gap between the fundamental study of the electrical properties of scattered single nanowires and the engineered fabrication of nanowire arrays. This approach mainly consists of the following steps: (a) electrodeposition of Au/Ni/Au nanowires into an ordered porous anodic aluminum oxide template; (b) mechanical polishing of the sample to expose the gold tips of Au/Ni/Au nanowires to the template surface; (c) in situ annealing of the Au/Ni/Au nanowires without removing the template. The resulting structure consists in an ordered array of Au/NiO/Au nanowires slightly protruding out of a flat aluminum oxide template. Unlike current approaches, with the described method it is not necessary to remove the template in order to oxidize the middle metal, thus allowing the availability of an entire set of metal/oxide/metal nanowires ordered in a two-dimensional matrix and where single heterojunctions can be accessed individually. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09574484
Volume :
24
Issue :
4
Database :
Complementary Index
Journal :
Nanotechnology
Publication Type :
Academic Journal
Accession number :
90045767
Full Text :
https://doi.org/10.1088/0957-4484/24/4/045302