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. 2005 Jul;5(7):1125-9.
doi: 10.1166/jnn.2005.152.

ZnO nanowires by pulsed laser vaporization: synthesis and properties

P G Ganesan  1 , K McGuire, H Kim, N Gothard, S Mohan, A M Rao, G Ramanath
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ZnO nanowires by pulsed laser vaporization: synthesis and properties

P G Ganesan et al. J Nanosci Nanotechnol. 2005 Jul.

Abstract

We report a new pulsed-laser vaporization (PLV) technique to synthesize nanowires of single-crystal ZnO having a wurtzite structure by using colloidal gold nanoparticles as seeding catalysts. The average diameter of the nanowires is approximately 13 nm, with a very narrow range of 7 to 25 nm. The nanowires are straight for the most part, with the axes parallel to the [0001] growth direction. Raman and photoluminescence spectra from the nanowires and bulk ZnO are similar except for a approximately 510 nm band in the nanowires due to oxygen vacancies. The bulk-like vibrational and electronic properties of the nanowires is due to the diameter being larger than the threshold below which quantum confinement-induced effects are expected.

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