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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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | ナノ加工 / ナノワイヤー / ホール測定 / ゼーベック係数 / 抵抗率 / 移動度 / 熱電変換 / ナノワイヤー熱電変換素子 / 収束イオンビーム / 電極接合 / 国際研究者交流（アメリカ） |
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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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Report
(4 results)
Research Products
(47 results)
