화학공학소재연구정보센터
Materials Research Bulletin, Vol.44, No.1, 184-188, 2009
Synthesis of nanostructured SiC using the pulsed laser deposition technique
We report the new results on the direct synthesis of nanostructured silicon carbide (SiC) materials using the pulsed laser deposition technique. Scanning electron microscopy images revealed that SiC nanoholes, nanosprouts, nanowires, and nanoneedles were obtained. The crystallographic structure, chemical composition, and bond structure of the nanoscale SiC materials were investigated using X-ray diffraction, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy. and Raman scattering spectroscopy. The transverse optical mode and longitudinal optical mode in Raman spectra were found to become sharper as the substrate temperature was increased. while the material structure evolved from amorphous to crystalline. (C) 2008 Elsevier Ltd. All rights reserved.