| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alloys and Compounds for Thermoelectric and Solar Cell Applications XI
|
| Presentation Title |
Mg2Sn Epitaxial Thin Film for Thermoelectric Application |
| Author(s) |
Takeaki Sakurai, Mariana Lima, Takashi Aizawa, Isao Ohkubo, Takao Mori |
| On-Site Speaker (Planned) |
Takeaki Sakurai |
| Abstract Scope |
Mg2X (X=Si, Ge, Sn) is a promising material for thermoelectric thin films because of its excellent physical properties using elements abundant in the earth. However, studies have reported that the power factor of Mg2X thin films are one order lower than that of the bulk material. Typically, the point defects show strong influence on thermal conductivity by acting as a phonon scattering center. If an epitaxial thin film behaves similar to a single crystal, the combination of the epitaxial nature and the doping could improve the power factor of Mg2X thin films. In this study, molecular beam epitaxy (MBE) is used to explore thermoelectric properties of the Mg2Sn epitaxial thin film. The relationship between microstructure and thermoelectric properties was shown by introducing alloying and doping effects in epitaxial Mg2Sn thin film. A higher quality epitaxial Mg2Sn thin film was fabricated and can be used in future in micro thermoelectric devices. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Thin Films and Interfaces, |