Periodic Growth of ZnO Nanorod Arrays on Two-Dimensional SiN x Nanohole Templates by Electrochemical Deposition

Precisely positioned and spatially separated ZnO nanorod arrays were fabricated on holographically predefined two-dimensional (2D) SiN x nanohole-array-coated Pt/Si substrates using a simple electrochemical deposition process. The stems of the 2D nanohole-assisted ZnO nanorods had a single-crystal n...

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Bibliographic Details
Published in:Journal of physical chemistry. C 2008-03, Vol.112 (11), p.4129-4133
Main Authors: Park, Seong Kyong, Lee, Young Kwang, Kwak, Hyon Tae, Park, Chan Ryang, Park, Jeunghee, Do, Young Rag
Format: Article
Language:English
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Summary:Precisely positioned and spatially separated ZnO nanorod arrays were fabricated on holographically predefined two-dimensional (2D) SiN x nanohole-array-coated Pt/Si substrates using a simple electrochemical deposition process. The stems of the 2D nanohole-assisted ZnO nanorods had a single-crystal nature and a preferred (002) growth direction but polycrystalline contact with the Pt surface. This approach provides a facile large-scale method for fabricating periodic nanohole-supported ZnO nanorods at low growth temperatures (90 °C). The enhanced UV emission from these nanorods was associated with a lower defect density in the nanohole-templated ZnO nanorods, which was achieved by electrochemical deposition on a 2D nanohole array at a potential of −1.0 V for 30 min.
ISSN:1932-7447
1932-7455
DOI:10.1021/jp7102947