Temperature dependences of the electrical conductivity and thermopower in TTT2I3 crystals

Abstract

The temperature dependences of the electrical conductivity and thermopower of the p-type tetrathiotetracene– iodide, TTT2I3 quasi-one-dimensional organic crystals are modeled in order to determine the optimal parameters of mentioned crystals for thermoelectric applications. The numerical calculations are performed in the frame of twodimensional (2D) physical model for crystals with different carrier concentrations and different degrees of perfection. The possibilities to improve the thermoelectric efficiency of mentioned crystals are discussed.