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Highly Oriented Plate-like Rod/Tube Arrays of ZnO

Published online by Cambridge University Press:  15 February 2011

Ying Dai ,
Long Q. Zhou ,
Yue L. Sun ,
Wen Chen  and
Yue Zhang
Ying Dai
Affiliation:
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
Long Q. Zhou
Affiliation:
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
Yue L. Sun
Affiliation:
School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
Wen Chen
Affiliation:
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
Yue Zhang
Affiliation:
Department of Materials Physics, University of Science and Technology Beijing, Beijing 100083, China
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Abstract

Highly oriented plate-like rod/tube arrays of ZnO are synthesized by a solution-based approach at low temperature. The ZnO rod/tube arrays grow oriented vertically on silicon substrate and the intersectant ZnO nanosheets stand on the backbones of ZnO rods/tubes. The constructions of plate-like rod or tube arrays depend on the processing conditions. The growth mechanisms are investigated based on the nucleation and growth process. The initial ZnO film formed on substrate is crucial for the growth of ZnO rods/tubes perpendicular to the substrate. The nanosheets grow around the ZnO rods/tubes by the secondary nucleation and growth process. The ZnO tubes are formed by the etching of the ZnO polar faces. The novel ZnO structures are expected to have great potential for electronics, photoelectronics, sensors, and catalysis etc.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 876: Symposium A – Nanoporous and Nanostructured Materials for Catalysis, Sensor and Gas Separation Applications , 2005 , R8.15
Copyright
Copyright © Materials Research Society 2005

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