2010 Fiscal Year Final Research Report
Study of High Performance Thermoelectric Materials due to Control of Carrier Transport Paths and its Scattering Mechanism.
| Project/Area Number |
20510106
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nanomaterials/Nanobioscience
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| Research Institution | Yamaguchi University |
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Principal Investigator |
AKAI Kouji Yamaguchi University, 大学情報機構, 准教授 (20314825)
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| Co-Investigator(Kenkyū-buntansha) |
KISHIMOTO Kengo 山口大学, 理工学研究科, 助教 (50234216)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 熱電変換材料 / クラスレート半導体 / 電子構造 / カゴ状物質 / 熱電特性 |
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| Research Abstract |
We studied the possibility of high performance thermoelectric materials on guest-ordering clathrate compounds, that have several kinds of guest atoms and each kinds of guest atoms is filled in different kinds of cages, respectively. Then, a smaller size of guest atom is in a smaller cage and a larger size of guest atom is in a larger cage. In the theoretical study, we calculated guest size dependence for the electronic structure and the Seebeck coefficient by using the calculated band structure. In the experimental study, we tried to synthesize the guest-ordering clathrate compounds and measured the thermoelectric properties of obtained sample.
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