Large-scale array of highly oriented silicon-rich microanowires induced by gas flow steering

摘要

Si-rich nanowires have been synthesized by decomposition of silicon monoxide (SiO) at a temperature of 1080degreesC, with argon (Ar) as the carrier gas. The morphology was observed to be highly oriented on a rnacro-scale by scanning electron microscopy (SEM). The formation mechanisms of the ordered morphology were discussed by means of energy dispersion X-ray spectroscopy (EDS), Raman scattering and high-resolution transmission electron microscopy (HRTEM) and we attributed this to the steering of the gas flow. (C) 2004 Elsevier Ltd. All rights reserved.