2013 Fiscal Year Final Research Report
Study of transport property for thermoelectric nanowire using nano-processing
| Project/Area Number |
23560828
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Structural/Functional materials
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| Research Institution | Saitama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KOMINE Takashi 茨城大学, 工学部, 准教授 (90361287)
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| Project Period (FY) |
2011 – 2013
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| Keywords | ナノ加工 / ナノワイヤー / ホール測定 |
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| Research Abstract |
We have fabricated single-crystal bismuth nano-wire possessing less than 1 micro-m and 1 mm-length. local electrodes were formed on side surface of the nano-wire by using nano-processing. As a result, Hall measurement for 4 micro- and 700 nm-diameter have been performed and obtained the mobility for each carrier from 4.2 to 300K. And it revealed that the the magnitude of the mobility in low temperature region was saturated by limitation of the mean free path of the carrier and the temperature coefficient of the resistivity was changed from positive to negative, especially narrow wire.
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