Electrical transport property control of single-walled carbon nanotubes by time-programmed plasma CVD

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Narrow-diameter and -chirality distributed single-walled carbon nanotubes (SWNTs) are successfully grown by time-programmed diffusion plasma chemical vapor deposition (CVD). By precisely adjusting a growth time of SWNTs on the order of a few second, it is found that chirality distributions of SWNTs become fairly narrow. Furthermore, the SWNTs grown at such an initial stage are also revealed to have unique length distributions, and almost all of such narrow length distributed SWNTs are very short (～100nm).