Abstract
Transport properties of sidewall functionalized (fluorinated) single walled carbon nanotubes (SWCNTs) have been evaluated. We did the theoretical investigations using the density-functional theory coupled with the Green's function approach. We show that a particular pattern of fluorination can change the electronic properties of the SWCNTs in an interesting way. We show the existence of one-dimensional carbon atom chains on the surface of SWCNT. When isolated from one another, each of these chains gives a conductance of ${G}_{0}$, leading to a many-fold increase in the conductance of metallic CNT. Even semiconducting CNT can change to zero band gap semiconductor.
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