Bioinspired superhydrophobic surfaces are an artificial functional surface that mainly extracts morphological designs from natural organisms. In both laboratory research and industry, there is a need to develop ways of giving large-area surfaces water repellence. Currently, surface modification methods are subject to many challenging requirements such as a need for chemical-free treatment or high surface roughness. Laser micro-nanofabrications are a potential way of addressing these challenges, as they involve non-contact processing and outstanding patterning ability. This review briefly discusses multiple laser patterning methods, which could be used for surface structuring toward creating superhydrophobic surfaces.
Fine-tuning the physical and chemical properties of graphene and its derivatives is crucial for developing novel multi-functional graphene-based devices. Natural bio-surfaces with rich micro-nanostructures are inspirational for such schemes since they possess unique properties such as superhydrophobicity. In order to effectively acquire these bio-functions, graphene-related materials need to be structured into regularly arranged biomimetic structures. Laser-processing techniques, such as two beam laser interference lithography and femtosecond laser direct-writing, are powerful prototype techniques for their outstanding patterning ability. Herein, we briefly reviewed laser-structuring on graphene or graphene oxide to realize highly functional biomimetic surfaces.
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