Development of Si thermoelectric devices by nanostructuring
Project/Area Number |
25709090
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Partial Multi-year Fund |
Research Field |
Energy engineering
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Research Institution | The University of Tokyo |
Principal Investigator |
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥24,960,000 (Direct Cost: ¥19,200,000、Indirect Cost: ¥5,760,000)
Fiscal Year 2015: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2014: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2013: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
|
Keywords | phonon engineering / phononics / phononic crystal / thermoelectrics / フォノニクス / フォノニック結晶 / フォノンエンジニアリング / フォノン / 熱電変換 / 環境発電 / ナノ構造伝熱 / 伝熱 |
Outline of Final Research Achievements |
This research aimed to control thermal conduction using phononic crystal nanostructures and apply to thermoelectric devices. We used square-lattice phononic crystal with circular holes in Si thin films and compared thermal conductivity with those of nanowires and membranes. We demonstrated that efficient thermal conduction control can be possible by taking account of the multiple scale thermal phonon mean path. By using this technology, we demonstrated three fold enhancement of thermoelectric performance of poly-crystalline Si thin film. We also demonstrated the first thermal conductivity tuning by changing the crystal order in a phononic crystal. This is a mile-stone work in this field by expanding thermal conduction control technology from particle to wave regimes.
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Report
(4 results)
Research Products
(80 results)
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[Presentation] シリコン接合界面の構造と熱コンダクタンスの関係2014
Author(s)
坂田 昌則,小宅 教文, Jeremie Maire, 日暮 栄治, 野村 政宏, 塩見 淳一郎
Organizer
第35回日本熱物性シンポジウム
Place of Presentation
東京工業大学 大岡山キャンパス
Year and Date
2014-11-22 – 2014-11-24
Related Report
Invited
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[Presentation] 強磁性体球形光共振器を用いた磁気光学効果の観測2014
Author(s)
長田有登, 久富隆佑, 野口篤史, 田渕豊, 山崎歴舟, M. Sadgrove, R. Yalla, 野村政宏, 宇佐見康二, 中村泰信
Organizer
日本物理学会
Place of Presentation
中部大学(春日井キャンパス)
Year and Date
2014-09-18 – 2014-09-21
Related Report
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