Carbon nanotube growth from semiconductor nanoparticles.
Nanoscale metal catalysts have been indispensable for carbon nanotube (CNT) synthesis by chemical vapor deposition (CVD). We show that even semiconductor nanoparicles of SiC, Ge, and Si produce single-walled and double-walled CNTs in CVD with ethanol. This implies that nanosize structures might act as a template for the formation of CNT caps composed of five- and six-membered rings. Providing a template for cap formation is the essential role of the catalysts.
Takagi
Daisuke
D
Department of Physics, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan.
Hibino
Hiroki
H
Suzuki
Satoru
S
Kobayashi
Yoshihiro
Y
Homma
Yoshikazu
Y
D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D012666:Semiconductors; D013499:Surface Properties
D046911:Macromolecular Substances; D037742:Nanotubes, Carbon