2023 Fiscal Year Annual Research Report
The research on thermal conductivities of one-dimensional van der Waals heterostructures
| Project/Area Number |
22KJ0648
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| Allocation Type | Multi-year Fund |
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MENG HAN 東京大学, 工学系研究科, 特別研究員(DC1)
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| Project Period (FY) |
2023-03-08 – 2024-03-31
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| Keywords | thermoelectrics / figure-of-merit ZT / metastable germanium / semiconductive alloy / first-principles |
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| Outline of Annual Research Achievements |
The study on metastable germanium indicates the better thermoelectric performance than stable phase, the studies on two metastable semiconducting alloy systems investigated the composition dependence and high-entropy effect of thermoelectric properties, and the physical fingerprints in electron band structure and phonon dispersion relations are revealed in all studies.
This research serves to demonstrate the effectiveness of discovering promising semiconducting crystalline polymorphs through metastable phase engineering, and to prove the applicability of expanding high-performance thermoelectric alloys through compositional and high-entropy engineering, thus can motivate the future research on thermoelectric metastable crystals in both theoretical and experimental aspects.
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Research Products
(4 results)
