Influence of the behavior of charge carriers on the thermoelectric properties of PbTe:Bi thin films - L. I. Nykyrui; O. M. Vozniak; Ya. S. Yavorskyi; V. A. Shenderovskyi; R. O. Dzumedzei; O. B. Kostiuk; R. I. Zapukhliak (Journal of Thermoelectricity, 2018)