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Progress on the Fabrication and Characterization of High Efficiency Thermoelectric Generators

  • Timothy P. Hogan (a1), Adam D. Downey (a2), Jarrod Short (a3), Jonathan J. D'Angelo (a4), Eric Quarez (a5), John Androulakis (a6), Pierre F. P. Poudeu (a7), Mercouri G. Kanatzidis (a8), Ed Timm (a9), Kim Sarbo (a10) and Harold Schock (a11)...

Abstract

High efficiency thermoelectric modules are of great interest for power generation applications where hot side temperatures of approximately 800K exist. The fabrication of such modules requires a multidisciplinary effort for the optimization of the material compositions, the engineering of the module systems, modeling and fabrication of the devices, and constant feedback from characterization. Pb-Sb-Ag-Te (LAST) and Pb-Sb-Ag-Sn-Te (LASTT) compounds are among the best known materials for this temperature range. Modeling of these materials and possible cascaded structures shows efficiencies of 14% can be achieved for low resistance contacts. Using antimony we have achieved contact resistivities less than 20 µΩ·cm2. Here we give a detailed presentation on the procedures used in the fabrication of thermoelectric generators based on these new materials. We also present the characterization systems and measurements on these generators.

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References

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Keywords

Progress on the Fabrication and Characterization of High Efficiency Thermoelectric Generators

  • Timothy P. Hogan (a1), Adam D. Downey (a2), Jarrod Short (a3), Jonathan J. D'Angelo (a4), Eric Quarez (a5), John Androulakis (a6), Pierre F. P. Poudeu (a7), Mercouri G. Kanatzidis (a8), Ed Timm (a9), Kim Sarbo (a10) and Harold Schock (a11)...

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