High-Efficiency MgSn TE Material

zT > 0.8 with MgSnThermoelectric Material

Overview

　Thermoelectric (TE) materials, which have the ability to convert heat into electricity, play a significant role in the utilization and management of thermal energy. Mg2Sn is a potential thermoelectric (TE) material that exhibits environmental compatibility since it is not-toxic and .not contains rare materials. However, as existing Mg2Sn materials have low electric conductivity and high thermal conductivity, it results in low zT value.
　This invention is related to Mg2Sn material contains Sb and B as doping materials, and Mg vacancies with high Power Factor and low thermal conductivity, which contribute to improve zT value. zT > 0.8 are achieved by our materials mentioned above.

Features・Outstandings

Product Application

・Thermoelectric Material
・Thermoelectric Module
・Thermal Co-Generaetion

Related Works

[1] W.Saito et al. Enhancing the Thermoelectric Performance of Mg2Sn Single Crystals via Point Defect Engineering and Sb Doping, ACS Appl. Mater. Interfaces 2020, 12, 52, 57888–57897

IP Data

IP No.　 ： JP Application No. 2021-023528
Inventor ： Wataru SAITO, Kei HAYASHI, Yuzuru MIYAZAKI
keyword ： thermoelectrics