Strategies for optimizing the thermoelectricity of PbTe alloys
Zhai Jinze †, Wang Teng †, Wang Hongchao ‡, Su Wenbin, Wang Xue, Chen Tingting, Wang Chunlei §
       

(color online) Scheme of temperature-induced band convergence in Na- and Se-doped PbTe.[17] (b) Scheme of dopants-induced band convergence in doped PbTe.[28] (c) Pisarenko plot of two-band model (red dot line), single-band model (black dot line) and Cd-doped PbTe (blue dots).[27] (d) Enhanced Seebeck coefficient via band convergence by elements doping.[12,14,17,27,28] The inset presents the Seebeck coefficient of undoped PbTe for comparison.