Nickel nanoclusters catalyse growth of silicon nanowires
by Sabar D. Hutagalung, Aspaniza Ahmad, Khatijah A. Yaacob
International Journal of Nanomanufacturing (IJNM), Vol. 4, No. 1/2/3/4, 2009

Abstract: Silicon nanowires (SiNWs) were synthesised by thermal evaporation technique using nickel catalyst. The silicon powder served as source material was subjected to evaporation at 900-1050°C for an hour under nitrogen gas flow. One-dimensional silicon nanostructures were collected on Ni-coated Si(111) substrate which is positioned at downstream from the source material. The most products are nanowires and needle-like nanostructures with various diameter and length. The solidified spherical Ni catalyst at the tip of nanostructures indicating that growth mechanism of Si nanostructures follows a vapour-liquid-solid (VLS) mechanism.

Online publication date: Mon, 07-Sep-2009

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