Control on the diameter of single-walled carbon nanotubes by changing the pressure in floating catalyst CVD

摘要

Since the discovery of carbon nanotubes 1,2, much attention has been paid to their outstanding mechanical and electronic properties due to their unique structure. Especially, single-walled carbon nanotubes (SWNTs) can behave as metal or semiconductor depending on the tube diameter and chirality. Furthermore, their properties contain a potential for various applications, such as quantum wire 3, field emitter 4, field effect transistor 5 and nano-reactor 6, so on. Therefore, it is very important to control the diameter and chirality of SWNTs.