Research / 2020 / Article / Fig 5

Research Article

The Electronic Transport Channel Protection and Tuning in Real Space to Boost the Thermoelectric Performance of Mg3+δSb2-yBiy near Room Temperature

Figure 5

Temperature dependence of (a) thermal conductivity, (b) lattice thermal conductivity (the inset is lattice thermal conductivity as a function of Bi content at 200°C), and (c) figure of merit ZT of Mg3+δSb2-yBiy (, 1.2, 1.4, 1.5, 1.6, 1.7, 1.8, and 2.0), previously reported as reference [4, 18]. (d) Synergistic improvement of average ZT and average power factor of Mg3+δSb2-yBiy-0.01Te0.01:Mn0.01 solid solutions in the temperature range of 50-250°C, compared with literature reported Mg3+δSb2-yBiy and Bi2 (Te, Se)3 as reference.