Silver hierarchical bowl-like array: synthesis, superhydrophobicity, and optical properties.
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.
Li
Yue
Y
Key Lab of Materials Physics, Institute of Solid State Physics, Chinese Academy of Science, Hefei, 230031, Anhui, P.R. China. yueli@issp.ac.cn
Li
Cuncheng
C
Cho
Sung Oh
SO
Duan
Guotao
G
Cai
Weiping
W
D000085:Acetates / Q000737:chemistry*; D003102:Colloids / Q000737:chemistry*; D005898:Glass / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry / Q000648:ultrastructure; D011137:Polystyrenes / Q000737:chemistry*; D018030:Silver Compounds / Q000737:chemistry*; D013438:Sulfhydryl Compounds / Q000737:chemistry; D013499:Surface Properties
D000085:Acetates; D003102:Colloids; D011137:Polystyrenes; D018030:Silver Compounds; D013438:Sulfhydryl Compounds; C103100:silver acetate; C086974:hexadecanethiol