Electrochemical Growth of Nanopillar Zinc Oxide Films by Applying a Low Concentration of Zinc Nitrate Precursor

Zinc oxide nanopillars with a single crystalline structure on the indium tin oxide substrate were prepared by using an electrodepositing process in lower concentrations of aqueous Zn(N03)2 and 0.1 M KCI solutions. Surface structure and crystal orientation of the prepared ZnO films were characterized...

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Bibliographic Details
Published in:Electrochemical and solid-state letters 2006-01, Vol.9 (3), p.C58-C61
Main Authors: Chen, Qiu-Ping, Xue, Min-Zhao, Sheng, Qiao-Rong, Liu, Yan-Gang, Ma, Zi-Feng
Format: Article
Language:English
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Summary:Zinc oxide nanopillars with a single crystalline structure on the indium tin oxide substrate were prepared by using an electrodepositing process in lower concentrations of aqueous Zn(N03)2 and 0.1 M KCI solutions. Surface structure and crystal orientation of the prepared ZnO films were characterized by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction, respectively. By varying the electrolyte composition, the morphology and crystal orientation of ZnO films may be changed dramatically. Well-oriented ZnO nanopillars can be obtained at a relatively low concentration of zinc ion in the electrolyte, and at a lower potential. A bandgap energy change of grown ZnO with different Zn(N03)2 concentrations was observed. The effects of electrodepositing potential, deaerating, and annealing are also discussed.
ISSN:1099-0062
DOI:10.1149/1.2163691