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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Alloys and Compounds for Thermoelectric and Solar Cell Applications VIII
Presentation Title D-9: Thermoelectric Properties of Multiply Doped Mg3(Sb, Bi)2
Author(s) Yasuo Shibata, Yuji Ohishi, Hiroaki Muta
On-Site Speaker (Planned) Yasuo Shibata
Abstract Scope Tamaki et al. reported that Te-doped Mg3(Sb, Bi)2 exhibited a very high ZT of 1.5 around 700 K with a largely enhanced electrical transport performance due to the significant valley degeneracy at the conduction band. According to Li’s first-principles calculation, when the carrier concentration reaches 4.8×1020 cm-3, the maximum ZT value of Mg3Sb2 can be enhanced by 88% compared with the reported value. However, this high carrier concentration has not been achieved in previous research. In the present study, we synthesized both cation and anion-site doped Mg3(Sb, Bi)2 in order to reach high carrier concentration.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

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