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

Figure 5

Thermoelectric performance of the Sb_2–PbTe₃ samples. as a function of temperature along (a) PE and (b) PA directions. Comparison of the thermoelectric performances of Sb_1.9875Pb_0.0125Te₃ and other thermoelectric alloys [8–10, 18, 29–31, 33, 34]: (c, d) , (e) , and (f) .

(a)

(b)

(c)

(d)

(e)

(f)