Bo Brummerstedt Iversen discusses β-Zn4Sb3 as a thermoelectric material. Zn4Sb3 is an excellent thermoelectric material made of cheap, “non-toxic” elements, but behind the simple formula hides a very complex truth.
The β-phase of Zn4Sb3 was rediscovered as a very promising thermoelectric material in the mid-nineties. The material seemed to have it all: a very high thermoelectric figure of merit in the technologically important mid-temperature region (200–400 °C), potential for further optimization through doping and best of all it was made of cheap, “non-toxic” and abundant elements…
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