Nano Archive

Controlled synthesis and field emission properties of ZnO nanostructures with different morphologies

Huang, Y. H. and Zhang, Y and Liu, L and Fan, S. S. and Wei, Y and He, J (2006) Controlled synthesis and field emission properties of ZnO nanostructures with different morphologies. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 6 (3). pp. 787-790. ISSN 1533-4880

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Official URL: http://www.ingentaconnect.com/content/asp/jnn/2006...

Abstract

By simply controlling atmosphere, rods, tetraleg-rods, and arrays of ZnO nanostructures have been fabricated respectively through pure zinc powder evaporation without catalyst at temperature of 650 similar to 700 degrees C. Investigations through HRTEM and XRD showed that the growth of the synthesized ZnO nanostructures was controlled by vapor-solid mechanism. Field emission measurements revealed that all of the structures, owing to their very low turn-on voltage, sufficient emission current and proper linearity of 1/V similar to Ln(I/V-2), are likely to be potential candidates as a field emitter. The results also indicated that field emission properties are relative to morphology and size of the tips of ZnO nanostructures, and the nanorods with sharp tips possess the first-class FE property.

Item Type:Article
Uncontrolled Keywords:ZnO nanostructures; crystal growth; vapor-solid mechanism; field emission; property
Subjects:Physical Science > Nanophysics
Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
ID Code:3764
Deposited By:SPI
Deposited On:23 Jan 2009 09:53
Last Modified:02 Mar 2009 10:04

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