Quasi-one-dimensional bulk thermoelectrics

In a recent Science Bulletin article, Dong et al. reported a quasi-one-dimensional TlCu3Te2 bulk material with an application-level room temperature ZT of 1.3 benefited from the pancake-like Fermi pocket with quasi-one-dimensional dispersion at narrow band-gap edge and the large, anharmonic quasi-one- dimensional lattice of heavy Tl+ and weakly bonded Cu+ ions.

Automated summary

In a recent article published in Science Bulletin, Dong et al. reported a quasi-one-dimensional TlCu3Te2 bulk material with a high application-level room temperature ZT value of 1.3. This is attributed to the presence of a pancake-like Fermi pocket with a quasi-one-dimensional dispersion at the narrow band-gap edge, as well as a large, anharmonic quasi-one-dimensional lattice structure formed by heavy Tl+ ions and weakly bonded Cu+ ions.