2012 Fiscal Year Final Research Report
Experimental Analysis on Mean Free Paths of Phonons and Electronsby using Micro-machined Nano-structures
| Project/Area Number |
22560203
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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 |
Thermal engineering
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
MIYAZAKI Koji 九州工業大学, 大学院・工学研究院, 教授 (70315159)
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| Project Period (FY) |
2010 – 2012
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| Keywords | マイクロ / ナノスケール伝熱 / 熱伝導 / フォノン / 電子 / 熱電発電 |
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| Research Abstract |
We intend to measure the mean free paths of phonons and electrons by using micro-machined Si thin films with micro-holes. The thermal conductivities of the micro-structured Silicon were measured, and the measured values can be explained by the classical transport model. The mean free path of phonons is calculated to be about 3um by Fucks-Sondheimer model, and it is longer than that of electrons.
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