Functional silicon nanostructures derived from drying-mediated self-assembly of gold nanoparticles
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Self-assembly of nanoparticles is an efficient technique where nanobuilding blocks spontaneously organize into ordered structures by thermodynamic and other constraints. We demonstrate that multifunctional Silicon (Si) nanostructures with unique morphologies like sheets, plates and flakes can be etched chemically by taking an advantage of natural self-assembly of gold nanoparticles (AuNPs) characterized with drying kinetics under external stimuli. We further demonstrated antireflection properties of the as-synthesized Si nanostructures.
KeywordsSi Nanostructures Self-assembly Gold nanoparticles Metal-assisted chemical etching Antireflective material
Authors thank Mr. Pradip Pachfule and Dr. Rahul Banerjee for BET surface area analysis experiments.