Influence of structure phase transition on the thermoelectric properties of CuSe Te liquid-like compounds.

Copper chalcogenide Cu(Se,Te) compounds are well known as typical p-type thermoelectric materials with a figure of merit () that can be optimized by the ratio of Se : Te. Here, by using the mechanical alloying and solid-state reaction methods, Te was substituted into Se sites within CuSe as the formula CuSe Te ( = 0.1, 0.