Scientific discoveries this week: 4/21/14
Evanston, Illinois – Northwestern University scientists have discovered the material that is the best at converting waste heat into electricity. An interdisciplinary team, led by inorganic chemist Dr. Mercouri Kanatzidis, has found that the crystal form of tin selenide conducts heat so poorly that it is the most efficient thermoelectric material discovered. Tin selenide has a ZT metric (a ratio of electrical conductivity and thermoelectric power to thermal conductivity) 2.6. The group responsible for the discovery point to countless commercial uses for the information due to two third of energy input being lost to waste heat on average.