%0 Journal Article %T Fabrication of ultrahigh-density nanowires by electrochemical nanolithography %A Chen Feng %A Jiang Hongquan %A Kiefer Arnold %A Clausen Anna %J Nanoscale Research Letters %D 2011 %I Springer %X An approach has been developed to produce silver nanoparticles (AgNPs) rapidly on semiconductor wafers using electrochemical deposition. The closely packed AgNPs have a density of up to 1.4 กม 1011 cm-2 with good size uniformity. AgNPs retain their shape and position on the substrate when used as nanomasks for producing ultrahigh-density vertical nanowire arrays with controllable size, making it a one-step nanolithography technique. We demonstrate this method on Si/SiGe multilayer superlattices using electrochemical nanopatterning and plasma etching to obtain high-density Si/SiGe multilayer superlattice nanowires. %U http://www.nanoscalereslett.com/content/6/1/444