About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alloys and Compounds for Thermoelectric and Solar Cell Applications IX
|
| Presentation Title |
Optimizing Thermoelectric Properties of Few-layer Transition Metal Dichalcogenides |
| Author(s) |
Tianhui Zhu, Mona Zebarjadi |
| On-Site Speaker (Planned) |
Tianhui Zhu |
| Abstract Scope |
Two-dimensional transition metal dichalcogenides (TMDCs) have relatively good electrical conductivity and relatively low thermal conductivity among all two-dimensional materials, which indicates their potential for thermoelectric energy conversion applications. The existing studies on of few-layer TMDCs, such as MoS2 and WSe2, have shown improved thermoelectric performances compared to their bulk and their peak thermoelectric power factor can exceed that of a commercial bulk Bi2Te3 [1]. In this study, we fabricate devices from mechanically exfoliated TMDCs (for example MoTe2) and aim to optimize their thermoelectric properties by varying parameters, such as temperatures, back gate voltages and substrates.
[1] J. Appl. Phys. 120, 134305 (2016); Phys. Rev. B 95, 115407 (2017); Nano Lett. 16, 2061 (2016). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, Characterization, |