ABSTRACT
This chapter introduces a transparent and superhydrophobic film by combining the super-water-repellent property of the lotus leaf and the nanopillar structure of the moth eye. The wet states of the lotus leaf and the moth eye were also investigated on the basis of an optical experimental design result. A developed film that mimicked the moth eye showed the same superhydrophobic property as that of the lotus leaf when the surface was covered by free-energy fluorine materials. The optical behavior of a nanopillar array is described, especially in terms of the reflection properties. A thin layer of low surface free energy using fluorine compounds is deposited on a design-optimized antireflective nanopillar array. A highly transparent, superhydrophobic film was developed by using nanostructures of the moth eye covered with a thin layer of long-chain fluorine compounds by applying the superhydrophobic effect of the lotus leaf. The film will be useful for creating self-cleaning windows.
