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Fig. 1 | Nanoscale Research Letters

Fig. 1

From: Unraveling the Morphological Evolution and Etching Kinetics of Porous Silicon Nanowires During Metal-Assisted Chemical Etching

Fig. 1

Schematic cross-sectional view of the fabrication of Si nanostructures using two-step MACE. a In the first step, AgNPs are electrolessly deposited on the Si surface in an aqueous solution containing AgNO3 and HF. b In the second step, the AgNPs catalyze the etching of the Si substrate in a solution composed of HF, H2O2, and H2O, leading to the formation of Si nanostructures

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