physica status solidi (a)
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor: Stefan Hildebrandt (Editor-in-Chief), Sabine Bahrs (Deputy Editor)
Online ISSN: 1862-6319
Back Cover: Fabrication of ordered silicon nanopillars and nanowires by self-assembly and metal-assisted etching (Phys. Status Solidi A 6/2011)
As shown by Boarino et al. (pp. 1412–1416), an array of silicon nanowires can be obtained by the self-assembly of polystyrene nanospheres and metal assisted etching. A thin film of noble metal like silver or gold is nano-indented by sputter etching of Ar+ ions through the interstitial voids among the hexagonal close-packed assembly of the spheres. During the successive metal assisted etching, the thin metal film sinks into the bulk of silicon extruding ordered silicon nanowires.