[22p-F407-1~15] 1.1 Interdisciplinary and General Physics

▼ [22p-F407-6] Comparative Thermoelectric Performance Demonstration Between Cavity-free GeSn and Si Thermoelectric Generators

〇(D)Md MehdeeHasan Mahfuz¹, Kazuaki Katayama¹, Yoshitsune Ito², Kazuaki Fujimoto², Motohiro Tomita¹, Masashi Kurosawa², Takeo Matsuki^1,3, Takanobu Watanabe¹ (1.Waseda univ., 2.Nagoya univ., 3.AIST)

Keywords:Cavity-free thermoelectric generator, GeSn, Si

This work demonstrates the thermoelectric (TE) performance of the cavity-free thermoelectric generators (TEGs) using GeSn and Si wires. In the cavity-free TEG, the TE power generated from a unit area is enhanced by shrinking the wire length (L_wire) by applying a steep temperature gradient. GeSn is one of the attractive TE materials due to its low thermal conductivity and high-power factor. In this work, we compared GeSn wires with Si wires in cavity-free planar structure focusing on the scalability.