The data of the conductivity effective masses was obtained from the work of Ricci et al, which is based on the Boltzmann transport theory. The BoltzTraP software was used to calculate the conductivity, Seebeck coefficient, effective masses and other transport properties of the materials. BoltzTrap uses the relaxation time approximation and the k-point interpolation method based on a Fourier expansion to calculate conductivity effective mass, which is dependent on temperature T and doping level. In this work, the data we used were found at a temperature of 300 K and a doping concentration of 10 18 cm -3 .