On the fabrication of resistor-shaped ZnO nanowires

Y. Yang; X. W. Sun; B. K. Tay; C. X. Xu; Z. L. Dong; L. Vayssieres

doi:10.1016/j.physe.2007.10.077

On the fabrication of resistor-shaped ZnO nanowires

Y. Yang, X. W. Sun^*, B. K. Tay, C. X. Xu, Z. L. Dong, L. Vayssieres

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

A novel morphology of zinc oxide (ZnO) consisting of resistor-shaped nanowires connected "in-series" has been synthesized by a vapor phase transport method in the presence of water and copper. Scanning electron microscopy showed that the diameter of nanowires changes abruptly from ∼200 to ∼20 nm and forms a resistor-shaped nanostructure. Transmission electron microscopy and selected-area electron diffraction revealed a grain boundary at the thicker center (200 nm) and the nanowires were composed of a pair of crystallites of wurtzite ZnO growing along ±[0 0 0 1] directions. A growth mechanism is proposed which takes into account the crystal growth conditions, the catalytic effect of water and copper, as well as the inherent polarization of the wurtzite structure along its c-axis.

Original language	English
Pages (from-to)	859-865
Number of pages	7
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	40
Issue number	4
DOIs	https://doi.org/10.1016/j.physe.2007.10.077
Publication status	Published - Feb 2008
Externally published	Yes

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics

Keywords

1D nanostructure
Transmission electron microscopy
Vapor phase transport
Zinc oxide

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10.1016/j.physe.2007.10.077

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AU - Sun, X. W.

AU - Tay, B. K.

AU - Xu, C. X.

AU - Dong, Z. L.

AU - Vayssieres, L.

PY - 2008/2

Y1 - 2008/2

N2 - A novel morphology of zinc oxide (ZnO) consisting of resistor-shaped nanowires connected "in-series" has been synthesized by a vapor phase transport method in the presence of water and copper. Scanning electron microscopy showed that the diameter of nanowires changes abruptly from ∼200 to ∼20 nm and forms a resistor-shaped nanostructure. Transmission electron microscopy and selected-area electron diffraction revealed a grain boundary at the thicker center (200 nm) and the nanowires were composed of a pair of crystallites of wurtzite ZnO growing along ±[0 0 0 1] directions. A growth mechanism is proposed which takes into account the crystal growth conditions, the catalytic effect of water and copper, as well as the inherent polarization of the wurtzite structure along its c-axis.

AB - A novel morphology of zinc oxide (ZnO) consisting of resistor-shaped nanowires connected "in-series" has been synthesized by a vapor phase transport method in the presence of water and copper. Scanning electron microscopy showed that the diameter of nanowires changes abruptly from ∼200 to ∼20 nm and forms a resistor-shaped nanostructure. Transmission electron microscopy and selected-area electron diffraction revealed a grain boundary at the thicker center (200 nm) and the nanowires were composed of a pair of crystallites of wurtzite ZnO growing along ±[0 0 0 1] directions. A growth mechanism is proposed which takes into account the crystal growth conditions, the catalytic effect of water and copper, as well as the inherent polarization of the wurtzite structure along its c-axis.

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KW - Transmission electron microscopy

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On the fabrication of resistor-shaped ZnO nanowires

Abstract

ASJC Scopus Subject Areas

Keywords

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