A Game-Changing Strategy in SnSe Thermoelectrics

Tin selenide (SnSe) has emerged as a hotspot of thermoelectric research since the discovery of an exceptionally high thermoelectric figure of merit (ZT) in single crystals of SnSe. In the issue of Joule, Lee et. al. unveil the ultralow thermal conductivity and unprecedented ZT in the polycrystalline SnSe by employing an oxide removal strategy.