Patent ID: 8808792

Claim:
A method, comprising the steps of: receiving a conductor element formed from a plurality of multi-wall carbon nanotubes; and exposing the conductor element exohedrally to a controlled amount of a dopant so as to increase the conductance of the conductor element to a desired value, wherein the dopant comprises bromine, wherein the maximum conductivity is enhanced by a factor (C/C 0 ) that may be expressed by the equation: C C 0 = 98 1 - Z · f Y Z - 0.143 · ( MW Br ) 1 / 3 · ρ Br 2 / 3 Y = n · d - 0.84 · n · ( n - 1 ) f=N equiv /N where N equiv =the number of MWNT's with a specific surface equal to that of a bundle comprising N tubes, N=the actual number of MWNTs in the bundle, MW Br equals the molecular weight of bromine, ρ Br equals the density of liquid bromine, n equals the number of tube walls, and d equals the diameter of the conductor element.