In this article we reveal affordable polycrystalline antimonides for more productive thermoelectric waste-heat recovery in 600 K than typical tellurides. That is enabled by a layout of Ni/Fe/Mg3SbBi and Ni/Sb/CdSb contacts for each a avoidance of chemical diffusion as well as a very low interfacial resistivity, acknowledging a report and https://wasteheatrecovery45566.shotblogs.com/rumored-buzz-on-hydrocarbon-heat-pumps-45166374