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Fabrication of vertically aligned ultrafine ZnO nanorods using metal-organic vapor phase epitaxy with a two-temperature growth method

Kitamura, K. and Yatsui, T. and Ohtsu, M. and Yi, G-C (2008) Fabrication of vertically aligned ultrafine ZnO nanorods using metal-organic vapor phase epitaxy with a two-temperature growth method. NANOTECHNOLOGY, 19 (17).

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Official URL: http://iopscience.iop.org/0957-4484/19/17/175305

Abstract

We report the fabrication of vertically aligned ultrafine ZnO nanorods using metal - organic vapor phase epitaxy and applying a two-temperature growth method. First, thick nanorods were grown vertically on the substrate at a lower temperature. Then, ultrafine ZnO nanorods with an average diameter of 17.7 nm were grown from the tips of the thick nanorods at a higher temperature. The direction of the ultrafine ZnO nanorods followed that of the preformed vertically aligned thick nanorods. Electron microscopy revealed that the ultrafine nanorods were single crystals and the growth direction was along the c axis. Excellent photoluminescence characteristics of the nanorods were confirmed.

Item Type:Article
Subjects:Physical Science > Nanophysics
Analytical Science > Microscopy and probe methods
Material Science > Nanostructured materials
ID Code:6108
Deposited By:IoN
Deposited On:12 Apr 2010 15:12
Last Modified:12 Apr 2010 15:12

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