Potassium Chloride Nanowire Formation Inside a Microchannel Glass Array

The synthesis of KCl nanowires has been achieved by atomic layer deposition inside high aspect ratio channels of microchannel glass. The average diameter of the KCl nanowires is 250 nm, with a minimum observed diameter of 50 nm, and lengths up to 5 {micro}m. The Cl precursor was TaCl5, while the sou...

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Bibliographic Details
Published in:Applied physics letters 2005-06, Vol.86
Main Authors: Zhang, Daqing, Moore, Sam, Wei, Jiang, Alkhateeb, Abudullah I., Gangadean, Dev, Mahmood, Hasan, Lantrips, Justin, McIlroy, David N., LaLonde, Aaron D., Norton, M G., Young, James S., Wang, Chong M.
Format: Article
Language:English
Subjects:
DEPOSITION
environmental molecular sciences laboratory
GLASS
MATERIALS SCIENCE
NANOSTRUCTURES
POTASSIUM CHLORIDES
PRECURSOR
SUBSTRATES
SYNTHESIS
TANTALUM CHLORIDES
WIRES
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Summary:The synthesis of KCl nanowires has been achieved by atomic layer deposition inside high aspect ratio channels of microchannel glass. The average diameter of the KCl nanowires is 250 nm, with a minimum observed diameter of 50 nm, and lengths up to 5 {micro}m. The Cl precursor was TaCl5, while the source of K was determined to be impurities in the microchannel glass substrate. The process for KCl nanowire formation is a three-step chemical process that simultaneously etches K from the substrate concomitant with the formation of chlorine gas. It is postulated that the curvature of the channels may influence the diameters of the KCl nanowires.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1977202