Effect of Bi doping on the thermoelectric properties of Zn4Sb3

In Situ TEM Studies of Nanostructured Thermoelectric Materials: An Application to Mg‐Doped Zn4Sb3 Alloy

“…Thus, efforts have been made to include elements ubstituting/dopingi nto the Zn site including Cd doping, [39] Mg doping, [29] Bi doping, [40] Gd doping, [41] or thermalp rocessing in inert gas (e.g. Thus, efforts have been made to include elements ubstituting/dopingi nto the Zn site including Cd doping, [39] Mg doping, [29] Bi doping, [40] Gd doping, [41] or thermalp rocessing in inert gas (e.g.…”

“…In particular, improving the thermals tability of Zn 4 Sb 3 materials could have benefits for practical applications. Thus, efforts have been made to include elements ubstituting/dopingi nto the Zn site including Cd doping, [39] Mg doping, [29] Bi doping, [40] Gd doping, [41] or thermalp rocessing in inert gas (e.g. Ar), [34] or melt-spun preparation, [42] or compositingZ n 4 Sb 3 with nanostructures, [17] etc.…”

Enhanced thermoelectric performance and high-temperature thermal stability of p-type Ag-doped β-Zn4Sb3

“…The traditional strategy of doping has been widely explored to improve the TE properties by tuning the carrier concentration to optimize the power factor (S 2 σ). Dopants, such as Cd [9], Al [10], Ga [10], In [10,11], Hg [12], Nb [13], Te [14,15], Mg [16,17], Ag [18,19], Cu [18], I [20], Se [21], Fe [22], Bi [23], and Pb [24], have been investigated in β-Zn 4 Sb 3 so far. However, most of the above investigations (including Ag doping) were done below room temperature.…”

Preparation, thermal stability, and electrical transport properties of In/Sn codoped β‐Zn4Sb3 single crystal

“…Among them, metal doping has been widely studied to optimize its TE performance. Elements such as Ge, Cd, Hg, In, Si, Ag, Cu, and Nb have been used to substitute Zn , and Sb has been replaced by Ti, Te, or Bi , but the TE performance has not been improved significantly. Moreover, the poor thermal stability and weak mechanical property resulting from cracks in polycrystalline β‐Zn 4 Sb 3 are the main reasons restricting its practical application.…”