Nanobulk Thermoelectric Materials Fabricated from Chemically Synthesized Cu₃Zn_1-x Al _x SnS_5-y Nanocrystals.

ABSTRACT: Direct energy conversion of heat into electricity using thermoelectric materials is an attractive solution to help address global energy issues. Developing novel materials composed of earth-abundant and nontoxic elements will aid progress toward the goal of sustainable thermoelectric materials. In this study, we chemically synthesized Cu-Zn-Sn-S nanocrystals and fabricated a Cu₃ZnSnS_5-y thermoelectric material using nanocrystals as building blocks. The figure-of-merit (ZT) value of the Cu₃ZnSnS_5-y material was found to be 0.39 at 658 K. We substituted Zn with Al in the Cu₃ZnSnS_5-y system to form Cu₃Zn_1-x Al _x SnS_5-y (x = 0.25,

SUBMITTER: Dwivedi P 

PROVIDER: S-EPMC6787884 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature