[16a-P6-1~22] CS.5 9.4/16.2 Code-sharing session

△ [16a-P6-15] Design and evaluation of Fe₂VAl_0.9Al_0.1/Cu tilted-multilayer thermoelectric device

〇Naoto Kodaira¹, Yoshimi Oide¹, Kei Hayashi¹, Yuzuru Miyazaki¹ (1.Tohoku Univ.)

Keywords:thermoelectric, device

Tilted-multilayer thermoelectric devices based on off-diagonal thermoelectric effect consist of a thermoelectric material and a metal. This effect can enhance the output power compared to that of π-type thermoelectric device.
In this report, we designed and evaluated Fe₂VAl_0.9Si_0.1/Cu tilted-multilayer thermoelectric device. We investigated the geometry where we could obtain the highest power factor, PF. From the result of simulation, the highest PF of 1.2×10^-2W/mK² was obtained at the thickness ratio of 0.95:0.05 (Fe₂VAl_0.9Si_0.1 : Cu) and at the tilt angle of 27° . This PF value was about 4 times as high as that of Fe₂VAl_0.9Si_0.1. Fabrication method and output power of the Fe₂VAl_0.9Si_0.1/Cu tilted-multilayer device will be represented at the poster session.