Journal of Electronic Materials

, Volume 48, Issue 8, pp 5257–5263 | Cite as

Fabrication of Thermoelectric Module Consisting of Rare-Earth-Filled Skutterudite Compounds and Evaluation of Its Power Generation Performance in Air

  • Shigeru KatsuyamaEmail author
  • Wakana Yamakawa
  • Yoko Matsumura
  • Ryoji Funahashi


Thermoelectric generation modules consisting of pairs of p-type CeFe3CoSb12 and n-type Yb0.15Co4Sb12 have been fabricated using Ag sheets as electrodes and metal paste as bonding material. In the module using Ag-23mass%Pd paste as the bonding material, the electric resistance was low and the diffusion of atoms between the electrode and device material was the smallest. A 14-pair thermoelectric module was fabricated using Ag-23mass%Pd as the bonding material, and a power generation experiment of the module was carried out in air. When the temperatures at the cold side and the hot side of the module were kept at 293 K and 573 K, respectively, a maximum power density of 0.70 kW/m2 was obtained in air, and, during a long priod of operation of 336 h (2 weeks), little change was seen in the electric resistance, open circuit voltage and maximum electric power of the module. In an experiment where the temperature at the hot side of the module was set to 673 K, an increase of electric resistance and a decrease of maximum power of the module were observed around 50 h or more, which was caused by the oxidation and decomposition of the device material.


Thermoelectric generation rare-earth- filled skutterudite compound metal paste module durability 


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.Division of Materials and Manufacturing Science, Graduate School of EngineeringOsaka UniversitySuitaJapan
  2. 2.Research Institute for Ubiquitous Energy DevicesNational Institute of Advanced Industrial Science and TechnologyIkedaJapan

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