Effect of Twisted Deformation on the Thermoelectric Performance of Porous Armchair Silicene Nanoribbons

Resumen

By means of Semi Empirical Approach in combination with nonequilibrium Green’s
function, we analyze the thermoelectric properties of porous SiNRs as a function of their pore
size and twisted deformation. The main aim of this paper is to identify a strategy likely to
degrade the thermal conductance while retaining high electronic conductance and
thermopower in order to enhance the thermoelectric figure of merit ZT. Several key factors
determining the electron and phonon transport have been discussed. The interesting results
suggest that the overall presents an oscillating behavior w.r.t the twisted deformation with
improved values for all the pore sizes. Further, an angle of 30° proved out to be the most
optimum twist for peak ZT for all porous structures irrespective of their pore size. These
findings indicate that the twisted porous silicene nanoribbons can be utilized as. These unique
findings of silicene nanoribbons under twists suggest their great potentials in designing
materials for potential thermoelectric applications.