| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Innovations in Energy Materials: Unveiling Future Possibilities of Computational Modelling and Atomically Controlled Experiments
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| Presentation Title |
Nanomaterial and nanostructure physics for thermoelectric performance enhancement |
| Author(s) |
Yoshiaki Nakamura |
| On-Site Speaker (Planned) |
Yoshiaki Nakamura |
| Abstract Scope |
For realization of the thermoelectric conversion, thermoelectric performance of the materials is required to be high. However, the correlation among phonon and electron transports makes it difficult to increase it.
We have developed various kinds of well-controlled nanostructures and nanomaterials, aiming at establishing new nanostructure physics for thermoelelectric performance enhancement. For example, in ultrasmall nanodot system of group IV semiconductor, phonon was coherently scattered, resulting in the ultralow thermal conductivity. We proposed that multiple 2 dimensional electron gas (2DEG) can generate giant power factor which is 4 times larger than that of conventional 2DEG. Furthermore, group IV-based layered films brought high power factor by atomic position displacement in addition to low thermal conductivity. In this talk, we will present our novel nanostructure physics for thermoelectric performance enhancement. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Thin Films and Interfaces, Nanotechnology, Energy Conversion and Storage |