New sustainable ternary copper phosphide thermoelectrics.
Robert J QuinnCallum StevensHector LeongAndrew D HuxleyJan-Willem G BosPublished in: Chemical communications (Cambridge, England) (2022)
The thermoelectric performance of ACuP (A = Mg and Ca) with abundant elements and low gravimetric density is reported. Both systems are p-type doped by intrinsic Cu vacancy defects, have large power factors and promising figures of merit, reaching zT = 0.5 at 800 K. This demonstrates that copper phosphides are a potential new class of thermoelectric materials for waste heat harvesting.