Metal surface nucleated supercritical fluid–solid–solid growth of Si and Ge/SiOx core–shell nanowires
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|Title:||Metal surface nucleated supercritical fluid–solid–solid growth of Si and Ge/SiOx core–shell nanowires||Authors:||Barrett, Christopher A.
Gunning, Robert Denis
Ryan, Kevin M.
|Permanent link:||http://hdl.handle.net/10197/2828||Date:||Jan-2010||Abstract:||High yields of single-crystalline silicon nanowires and germanium/silicon oxide core-shell nanostructures were synthesized using a supercritical fluid-solid-solid growth mechanism. The formation of the one-dimensional nanostructures was investigated on stainless steel and titanium reactor cell walls. The nanowire growth is diffusion controlled with no catalyst particles being observed at the tip of the nanowires, which is contrary to the characteristic feature of a one-dimensional growth based on the vapor-liquid-solid mechanism. The diameter and length of the nanowires were in the ranges of 30-60 nm and 1-10 µm, respectively, as found by high-resolution electron microscopy. The nanowires were characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX) and scanning electron microscopy (SEM).||Funding Details:||Science Foundation Ireland
Irish Research Council for Science, Engineering and Technology
|Type of material:||Journal Article||Publisher:||RSC publications||Copyright (published version):||The Royal Society of Chemistry 2010||Keywords:||Silicon nanowires;Germanium/silicon oxide;Core-shell nanostructures;TEM;SEM;EDX||Subject LCSH:||Nanosilicon
|DOI:||10.1039/b914950c||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Solar Energy Conversion (SEC) Cluster Research Collection|
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