Enhanced Thermoelectric Performance of Lightly Pb-Doped Sb₂Te₃ Polycrystalline Alloys for Power Generation in Midtemperature Range

Figure 1

XRD patterns of the Sb_2–PbTe₃ samples for different doping content along (a) PA and (b) PE directions. (c) Lattice parameters as functions of doping content.

(a)

(b)

(c)