Author/Authors :
Nobuyuki Hayashi، نويسنده , , Shin-ichi Honda، نويسنده , , Keita Tsuji، نويسنده , , Kuei-Yi Lee، نويسنده , , Takashi Ikuno، نويسنده , , Keiichi Fujimoto، نويسنده , , Shigeharu Ohkura، نويسنده , , Mitsuhiro Katayama، نويسنده , ,
Kenjiro Oura، نويسنده , , Takashi Hirao، نويسنده ,
Abstract :
Vertically aligned carbon nanotube (CNT) arrays have been successfully grown on Si substrates by dc bias sputtering. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations revealed that the resultant arrays consisted of dense CNTs with diameters of 40–60 nm and lengths of 300–400 nm. The CNTs were found to have a bamboo-like structure at the end of which metallic nanoparticle was formed, indicating tip growth mechanism. The energy enhancement of carbon particles is a key factor for synthesis of CNTs using dc bias sputtering system.
