Seeded growth of ZnO nanorods from NaOH solutions

Breedon, M, Rix, C and Kalantar Zadeh, K 2009, 'Seeded growth of ZnO nanorods from NaOH solutions', Materials Letters, vol. 63, no. 2, pp. 249-251.


Document type: Journal Article
Collection: Journal Articles

Title Seeded growth of ZnO nanorods from NaOH solutions
Author(s) Breedon, M
Rix, C
Kalantar Zadeh, K
Year 2009
Journal name Materials Letters
Volume number 63
Issue number 2
Start page 249
End page 251
Total pages 3
Publisher Elsevier Science Bv
Abstract Perpendicularly aligned arrays of corrugated ZnO nanorods were grown onto gold patterned LiTaO3 substrates, coated with a sputtered ZnO seed layer. During the growth process, these substrates were held submerged in an aqueous solution comprising a 1:40 mol ratio mix of zinc nitrate hexahydrate to sodium hydroxide. The substrates were placed in a custom apparatus residing in an autoclavable storage bottle. Scanning electron micrographs, which were taken at different deposition intervals, suggest that the growth mechanism of ZnO nanorods initiates with the etching of the ZnO sputtered seed layer into hexagonal bases (> 500 nm across), from where multiple protrusions (40 nm-100 nm in width) grow atop these hexagonal bases. Such nanoprotrusions later coalesce into larger nanorods. Uniformly distributed high density corrugated nanorods, with proximal spacing between adjacent nanorods of approximately 20 nm-50 nm, were observed over the entire surface.
Subject Nanometrology
Keyword(s) Aqueous synthesis
Corrugated
Nanorods
Nanostructure
ZnO
DOI - identifier 10.1016/j.matlet.2008.10.001
Copyright notice © 2008 Elsevier B.V. All rights reserved.
ISSN 0167-577X
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