Electrochemical growth of ZnO nano-rods on polycrystalline Zn foil

M. H. Wong; A. Berenov; X. Qi; M. J. Kappers; Z. H. Barber; B. Illy; Z. Lockman; M. P. Ryan; J. L. MacManus-Driscoll

doi:10.1088/0957-4484/14/9/306

Electrochemical growth of ZnO nano-rods on polycrystalline Zn foil

M. H. Wong, A. Berenov, X. Qi, M. J. Kappers, Z. H. Barber, B. Illy, Z. Lockman, M. P. Ryan, J. L. MacManus-Driscoll

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

79 Citations (Scopus)

Abstract

ZnO nano-rods were grown on polycrystalline Zn foil by cathodic electrodeposition in an aqueous zinc chloride/calcium chloride solution at 80 °C. Variations in the solution concentration and substrate surface preparation were explored to shed light on the nucleation of the nano-rods. It was found that the nano-rod diameter increased with increasing solution concentration. Rolling striations and native ZnO on the surface of the Zn appeared to enhance nucleation and allowed more highly aligned, dense structures to be grown. By using low solution concentrations (5.0 × 10^-4 M ZnCl₂) and non-electropolished Zn substrates, well faceted, hexagonal nano-rod structures of dimension ∼80 nm diameter and >1 μm length were obtained. X-ray studies showed the samples to be highly aligned but containing a Zn-oxychloride impurity phase. Annealing caused the impurity phase to disappear and resulted in the films having a sharp photoluminescence double peak at 380/396 nm.

Original language	English
Pages (from-to)	968-973
Number of pages	6
Journal	Nanotechnology
Volume	14
Issue number	9
DOIs	https://doi.org/10.1088/0957-4484/14/9/306
Publication status	Published - 2003 Sept

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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title = "Electrochemical growth of ZnO nano-rods on polycrystalline Zn foil",

abstract = "ZnO nano-rods were grown on polycrystalline Zn foil by cathodic electrodeposition in an aqueous zinc chloride/calcium chloride solution at 80 °C. Variations in the solution concentration and substrate surface preparation were explored to shed light on the nucleation of the nano-rods. It was found that the nano-rod diameter increased with increasing solution concentration. Rolling striations and native ZnO on the surface of the Zn appeared to enhance nucleation and allowed more highly aligned, dense structures to be grown. By using low solution concentrations (5.0 × 10-4 M ZnCl2) and non-electropolished Zn substrates, well faceted, hexagonal nano-rod structures of dimension ∼80 nm diameter and >1 μm length were obtained. X-ray studies showed the samples to be highly aligned but containing a Zn-oxychloride impurity phase. Annealing caused the impurity phase to disappear and resulted in the films having a sharp photoluminescence double peak at 380/396 nm.",

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AU - Wong, M. H.

AU - Berenov, A.

AU - Qi, X.

AU - Kappers, M. J.

AU - Barber, Z. H.

AU - Illy, B.

AU - Lockman, Z.

AU - Ryan, M. P.

AU - MacManus-Driscoll, J. L.

PY - 2003/9

Y1 - 2003/9

N2 - ZnO nano-rods were grown on polycrystalline Zn foil by cathodic electrodeposition in an aqueous zinc chloride/calcium chloride solution at 80 °C. Variations in the solution concentration and substrate surface preparation were explored to shed light on the nucleation of the nano-rods. It was found that the nano-rod diameter increased with increasing solution concentration. Rolling striations and native ZnO on the surface of the Zn appeared to enhance nucleation and allowed more highly aligned, dense structures to be grown. By using low solution concentrations (5.0 × 10-4 M ZnCl2) and non-electropolished Zn substrates, well faceted, hexagonal nano-rod structures of dimension ∼80 nm diameter and >1 μm length were obtained. X-ray studies showed the samples to be highly aligned but containing a Zn-oxychloride impurity phase. Annealing caused the impurity phase to disappear and resulted in the films having a sharp photoluminescence double peak at 380/396 nm.

AB - ZnO nano-rods were grown on polycrystalline Zn foil by cathodic electrodeposition in an aqueous zinc chloride/calcium chloride solution at 80 °C. Variations in the solution concentration and substrate surface preparation were explored to shed light on the nucleation of the nano-rods. It was found that the nano-rod diameter increased with increasing solution concentration. Rolling striations and native ZnO on the surface of the Zn appeared to enhance nucleation and allowed more highly aligned, dense structures to be grown. By using low solution concentrations (5.0 × 10-4 M ZnCl2) and non-electropolished Zn substrates, well faceted, hexagonal nano-rod structures of dimension ∼80 nm diameter and >1 μm length were obtained. X-ray studies showed the samples to be highly aligned but containing a Zn-oxychloride impurity phase. Annealing caused the impurity phase to disappear and resulted in the films having a sharp photoluminescence double peak at 380/396 nm.

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JO - Nanotechnology

JF - Nanotechnology

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ER -

Electrochemical growth of ZnO nano-rods on polycrystalline Zn foil

Abstract

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