Lysyuk Y. Modification of thermoelectric properties of bulk, thin film and nanoscale structures of lead telluride.

In this paper, through experimental studies of thermoelectric materials n-i p-PbTe, n-PbTe:Sb(Bi) and theoretical calculations using the method of thermodynamic potentials, crystal and variational method for solving the Boltzmann equation optimum technological factors and their synthesis briquetting.Given the comprehensive experimental study within the law Mattisen for the independent contribution of different scattering mechanisms, models Thaler to change the resistivity and the thickness of the bilayer model Petritz calculated the mean free path of carriers, their mobility, size of grains in the films of PbTe, PbTe:Bi and shown that thermoelectric parameters determined by diffuse scattering at the surface and within Intergrain. The combination of the two carriers model with diffusion processes of oxygen and vacancies of lead appreciated contribution to the thermoelectric parameters of thin films of lead telluride electrons and holes in their endurance in the air. It is shown that the dominant process is the diffusion of oxygen in the volume of condensate and lead vacancies to its surface.