Giant thermoelectric power in fluorine-doped single-walled carbon nanotubes

Abstract

Herein, we report on a tunable axial thermoelectric power (TEP), in a non-degenerate fluorine-doped single-walled carbon nanotubes (FSWCNTs) as calculated for carriers in the lowest miniband using a tractable analytical approach. We deduced the axial thermoelectric power (αzz) as a function of temperature gradient (∇T). Additionally, we investigated the influence of doping concentration (no), constant electric field (Eo), and overlapping integral for jumps (Δs and Δz) on their behaviour. The intensity of the axial thermoelectric power (αzz) and the operational temperature range could be tuned using the constant electric field, doping and overlapping integrals, respectively. It is worth noting that the giant thermoelectric power (αzz) obtained and the ability to tune the FSWCNT to operate at high temperatures make FSWCNT a potential candidate for thermoelectric applications such as remote power generation.