Tetrahedrites for Thermoelectric Applications: A database

Tetrahedrite (Cu₁₂Sb₄S₁₃) and its substituted variants have attracted significant interest as thermoelectric materials due to their naturally low lattice thermal conductivity, relatively high electrical conductivity, and earth-abundant composition. Although many studies report promising dimensionless figures of merit (zT) for doped tetrahedrites, the literature remains highly fragmented, and a unified data-driven assessment has so far been missing. This dataset was created as part of a comprehensive review of tetrahedrites synthesized through mechanochemical routes followed by pressure-assisted densification. It compiles more than 6,000 individual measurements extracted from 58 publications, including Seebeck coefficient, electrical conductivity, thermal conductivity, zT, and detailed processing and compositional metadata. Statistical analyses were carried out to study the influence of dopants and sintering strategies, and complementary density-functional theory calculations were used to interpret how substitutional elements affect electronic structure and charge-carrier behaviour. When all zT values are compared at the same temperature, dopant effects appear less decisive than commonly described in the literature, highlighting instead the dominant role of materials quality and microstructural integrity. This dataset contains the excel file "Tetrahedrite - Data Base.xlsx" with all the data, and the "README.txt" text file explaining the organization and details concerning the data base. If these results are used for your own research, please cite our work: "Hidden processing drivers of thermoelectric performance in tetrahedrites"