期刊
MATERIALS TRANSACTIONS
卷 59, 期 9, 页码 1411-1416出版社
JAPAN INST METALS
DOI: 10.2320/matertrans.E-M2018829
关键词
thermoelectric properties; quasicrystals; approximant crystals; intermetallic compounds; lead chalcogenides; band engineering; first-principles calculation
资金
- KAKENHI from the Japan Society for the Promotion of Science [21860021, 23760623, 26709051, 17H03421]
- Thermal & Electric Energy Technology Foundation
- Sumitomo Foundation
- Murata Science Foundation
- Japan Science and Technology Agency (JST)
- Grants-in-Aid for Scientific Research [17H03421, 21860021] Funding Source: KAKEN
This review briefly discusses the relationship between the crystal structures, electronic structures, and thermoelectric properties of materials such as pseudogap quasicrystals and related approximant crystals, narrow-gap binary intermetallic compounds, and lead chalcogenides. The approach used is to identify the materials' intrinsic physical properties from experimental data and establish a route for tuning their properties based on theoretical models and first-principles calculations. A possible route for improving thermoelectric performance is to use a band engineering approach, such as band convergence and introducing impurity states near the valence and conduction band edges. This approach was successfully applied to TiSi2-type RuGa2 and the lead chalcogenides PbTe and PbSe.
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