title: Low-temperature growth of silicon nanotubes and nanowires on amorphous substrates.
abstract: Silicon one-dimensional (Si 1D) materials are of particular relevance due to their prospect as versatile building materials for nanoelectronic devices. We report the growth of Si 1D structures from quasi-hexagonally ordered gold (Au) nanoparticle (NP) arrays on borosilicate glass (BSG) and SiOx/Si substrates. Using hydrogen instead of oxygen plasma during NP preparation enhances the catalytic activity of AuNPs (diameters of 10-20 nm), enabling Si 1D growth at temperatures as low as 320 degrees C. On BSG, Si nanowires (SiNWs) are identified and reasonable vertical alignment is achieved at 420 degrees C. On SiOx/Si, only Si nanotubes (SiNTs) are obtained right up to 420 degrees C. A mixture of SiNTs and SiNWs is observed at 450 degrees C and only SiNWs grow at 480 degrees C.
authors.affiliation: Max Planck Institute for Metals Research, Heisenbergstr. 3, D-70569 Stuttgart, Germany.
authors.forename: Beri N
authors.initials: BN
authors.lastname: Mbenkum
authors.forename: Andreas S
authors.initials: AS
authors.lastname: Schneider
authors.forename: Gisela
authors.initials: G
authors.lastname: Schütz
authors.forename: C
authors.initials: C
authors.lastname: Xu
authors.forename: Gunther
authors.initials: G
authors.lastname: Richter
authors.forename: Peter A
authors.initials: PA
authors.lastname: van Aken
authors.forename: Günter
authors.initials: G
authors.lastname: Majer
authors.forename: Joachim P
authors.initials: JP
authors.lastname: Spatz
mesh_terms: D000327:Adsorption; D002384:Catalysis; D006046:Gold / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry; D008823:Micelles; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D043942:Nanotubes / Q000737:chemistry*; D053770:Nanowires / Q000737:chemistry*; D012821:Silanes / Q000737:chemistry; D017640:Silicates / Q000737:chemistry; D012825:Silicon / Q000737:chemistry*; D013696:Temperature
chemical_list: D008823:Micelles; D012821:Silanes; D017640:Silicates; D006046:Gold; C005625:monosilane; D012825:Silicon