Can CuFeS2 be used in a sensitized thermal cell?

Sensitized thermal cell (STC) is a new method for converting heat directly into electric power; STC mimics a dye-sensitized solar cell. Up to now, the power generation by STC has been reported for β-FeSi2, Ge, and Ag2S; however, these materials are relatively expensive. In this study, CuFeS2, which is abundant on the Earth, was examined as the STC material.