Scattering Mechanisms in pressed PbTe

Abstract

The results of studies of structural and thermoelectric properties obtained by the powder pressing method of PbTe samples are presented. In order to interpret the obtained results, a theoretical calculation of the specific conductivity and the Seebeck coefficient was performed on the basis of a model that takes into account two types of free charge carriers. Conclusions have been made about the mechanisms of carrier scattering.

Analysis of heat conductivity mechanisms in PbSnTe solid solutions

“…If we further calculate the Debye temperature at this frequency, the obtained values will be ≈ 180 K, which differs from the experimental 120-130 K [37]. The reason for the appearance of this multiplier lies in whether to consider the number of modes in equation (10) equal to N or 3N. In the second case, we get expression (5A), in the first case, expression (5A) with an additional factor.…”

“…A 4 B 6 compounds are well-known thermoelectric materials [1][2][3][4][5][6][7][8][9][10][11]. Improvement of their operational parameters can be achieved by creating solid solutions.…”