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This study aims to elucidate the reaction sequence of enhanced etching of Ge surfaces in water with the assistance of reduced graphene oxide (rGO) sheets. For this purpose, we performed in situ atomic force microscopy observations. After the immersion of a Ge surface loaded with dispersed rGO sheets into water, a water film was promptly intercalated at the rGO/Ge interface. First, the Ge surface along...
Catalyst-assisted chemical etching is an emerging technology for fabricating a variety of three-dimensional nanostructures on a semiconductor surface for future electronic and optical devices. In contrast to conventional wet etching using noble metals, we performed a fundamental study on the chemical etching of a Ge surface assisted by dispersed sheets of reduced graphene oxide (rGO) in water with...
Cicada wings have nanostructures which shows superhydrophobic property, non reflecting to the light, and antibacterial characteristics. To mimic the nano structure of a cicada wing, we fabricated nano-pillar array using metal assisted etching. Fabricated nano-pillar array showed higher antibacterial property for E. coli. Our introduced process has advantages for industrial usage because of low cost...
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