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  • Silver hierarchical bowl-like array: synthesis, superhydrophobicity, and optical properties.

Silver hierarchical bowl-like array: synthesis, superhydrophobicity, and optical properties.

Langmuir : the ACS journal of surfaces and colloids (2007-08-21)
Yue Li, Cuncheng Li, Sung Oh Cho, Guotao Duan, Weiping Cai
ABSTRACT

We present a facile synthetic route to a silver bowl-like array film with hierarchical structures on glass substrate using the colloidal monolayer as a template. In these special hierarchical structures, microstructures were provided by a colloidal template of polystyrene latex spheres and nanostructures resulting from the thermal decomposition of silver acetate. These structures were chemically modified with 1-hexadecanethiol, and a corresponding self-assembled monolayer (SAM) was formed on their surfaces. Due to the lotus leaf-like morphology with hierarchical micro/nanostructures, the film displayed an extraordinary superhydrophobicity after chemical modification. Water contact angle and sliding angle were 169 degrees and 3 degrees (the weight of water droplets: 3 mg), respectively. Additionally, its optical property has also been investigated. This structure could be used in microfluidic devices, optical devices, and biological science.

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1-Hexadecanethiol, 99%
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Sigma-Aldrich
1-Hexadecanethiol, ≥95.0% (GC)
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