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Journal of Nanomaterials
Volume 2016 (2016), Article ID 5849041, 9 pages
http://dx.doi.org/10.1155/2016/5849041
Research Article

Synthesis of Silicon Nanoparticles and Nanowires by a Nontransferred Arc Plasma System

1Department of Nuclear and Energy Engineering, Jeju National University, Jeju 63243, Republic of Korea
2Department of Chemistry and Chemical Engineering and Regional Innovation Center for Environmental Technology of Thermal Plasma (RIC-ETTP), Inha University, Incheon 22212, Republic of Korea

Received 21 July 2016; Accepted 6 September 2016

Academic Editor: Xiaopeng Li

Copyright © 2016 Sooseok Choi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Silicon nanomaterials were synthesized from solid silicon powder in microsize using a nontransferred arc plasma system. Synthesized silicon nanomaterials were sphere or wire in morphology according to the input power of arc plasma, the flow rate of plasma forming gas, and the collecting position of product. The product was spherical nanoparticles at a high input power for complete evaporation, while it was nanowires at a relatively low input power. The mean diameter of synthesized silicon nanoparticles was increased from 20.52 nm to 40.01 nm by increasing the input power from 9 kW to 13 kW. On the other hand, the diameter of silicon nanowires was controllable by changing the flow rate of plasma forming gas. The mean diameter of silicon nanowires was increased from 16.69 nm to 23.03 nm by decreasing the plasma forming gas flow rate from 15 L/min to 12 L/min.