An Electrical Contacts Study for Tetrahedrite-Based Thermoelectric Generators.

ABSTRACT: High electrical and thermal contact resistances can ruin a thermoelectric device's performance, and thus, the use of effective diffusion barriers and optimization of joining methods are crucial to implement them. In this work, the use of carbon as a Cu₁₁Mn₁Sb₄S₁₃ tetrahedrite diffusion barrier, and the effectiveness of different fixation techniques for the preparation of tetrahedrite/copper electrical contacts were investigated. Contacts were prepared using as jointing materials Ni and Ag conductive paints and resins, and a Zn-5wt% Al solder. Manual, cold- and hot-pressing fixation techniques were explored. The contact resistance was measured using a custom-made system based on the three points pulsed-current method. The legs interfaces (Cu/graph

SUBMITTER: Coelho R 

PROVIDER: S-EPMC9573378 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature