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All-self-assembled MgO nanorods and nanowires grown on Au-decorated MgO substrates by pulsed laser deposition

A. CRISAN1,* , J. L. TANNER2, P. MIKHEENKO2, J. S. ABELL2

Affiliation

  1. National Institute R & D of Materials Physics, 077125 Bucharest, Mãgurele, P. O. Box Mg. 7, Romania
  2. School of Metallurgy and Materials, University of Birmingham, Birmingham B15 2TT, United Kingdom

Abstract

We report on the fabrication of MgO nanorods and nanowires by a novel, all-self-assembled method, using Pulsed Laser Deposition. The seeds for the formation of these one-dimensional nanostructures consisted of self-assembled gold nanodots. Gold was used due to its well-known catalytic effect. Dimensions and surface density of the Au nano-dots, investigated by Atomic Force Microscopy, depend on the deposition conditions and the number of laser pulses. Morphology of the MgO nanorods and nanowires was investigated by SEM, and was found to depend strongly on the deposition conditions and on the architecture of the Au nanodots on the decorated substrates.

Keywords

Self-assembling nanotechnology, MgO nanorods, MgO nanowires, Pulsed laser deposition, Au nano-dots.

Citation

A. CRISAN, J. L. TANNER, P. MIKHEENKO, J. S. ABELL, All-self-assembled MgO nanorods and nanowires grown on Au-decorated MgO substrates by pulsed laser deposition, Optoelectronics and Advanced Materials - Rapid Communications, 3, 3, March 2009, pp.231-235 (2009).

Submitted at: Feb. 17, 2009

Accepted at: March 19, 2009