Fabrication of a Superhydrophobic Surface from the Amplified Exponential Growth of a Multilayer

Hierarchical micro- and nanostructures can be produced simultaneously by the novel layer-by-layer assembly described here. The multilayer films, grown by an exponential growth mechanism that can be amplified by adding silver ions, showed extreme hydrophobicity and a lotus-leaf-like amplification of the surface roughness. The figure clearly demonstrates the superhydrophobic nature of the multilayer film.