Controlling Ag whisker growth using very thin metallic films

The selective growth of Ag nano-whiskers on polycrystalline films was realized by introducing an additional artificial layer onto the films. Ag nano-whiskers with diameter ∼200 nm and length ∼3 μm were successfully generated from Ag films covered with a 1-nm-thick SiO 2 layer. However, the formation...

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Bibliographic Details
Published in:Scripta materialia 2010-08, Vol.63 (3), p.289-292
Main Authors: Tohmyoh, H., Yasuda, M., Saka, Masumi
Format: Article
Language:English
Subjects:
Covering
Gold
Metal films
Nanocomposites
Nanomaterials
Nanostructure
Silicon dioxide
Silver
Thin films
Whiskers
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Summary:The selective growth of Ag nano-whiskers on polycrystalline films was realized by introducing an additional artificial layer onto the films. Ag nano-whiskers with diameter ∼200 nm and length ∼3 μm were successfully generated from Ag films covered with a 1-nm-thick SiO 2 layer. However, the formation of Ag whiskers/hillocks on the top surface of the film could be suppressed using thick SiO 2 layers or ductile Au layers.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2010.04.013