Induced Hall-Like Current by Acoustic Phonons in Semiconductor Fluorinated Carbon Nanotube

Abstract

We show that Hall-like current can be induced by acoustic phonons in a nondegenerate, semiconductor fluorine-doped single-walled carbon nanotube (FSWCNT) using a tractable analytical approach in the hypersound regime 1 q  (q is the modulus of the acoustic wavevector and  is the electron mean free path). We observed a strong dependence of the Hall-like current on the magnetic field, H, the acoustic wave frequency, q ω , the temperature, T, the overlapping integral, ∆ , and the acoustic wavenumber, q. Qualitatively, the Hall-like current exists even if the relaxation time τ does not depend on the carrier energy but has a strong spatial dispersion, and gives different results compared to that obtained in bulk semiconductors. For

Giant Thermoelectric Figure of Merit in Fluorine Doped Single Walled Carbon Nanotube

“…where µ is the electrochemical potential which ensures carrier conservation. For a p−type FSWCNT with a periodicity of 3b, the energy band is given as [8,[21][22][23][24][25]:…”

“…SWCNTs skeletal structure enables the attachment of large number of foreign atoms to the surface without destroying the tubular structure. Doping an armchair-SWCNT with fluorine atoms changes its nature from metallic to semiconducting [8,[21][22][23][24][25].…”