Development on low dimensional thermoelectric thin films
| Project/Area Number |
25289043
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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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, 工学(系)研究科(研究院), 教授 (70315159)
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| Co-Investigator(Kenkyū-buntansha) |
TAKASHIRI Masayuki 東海大学, 工学部, 准教授 (50631818)
YABUKI Tomohide 九州工業大学, 大学院工学研究院, 助教 (70734143)
TANAKA Saburo 日本大学, 工学部, 助教 (30713127)
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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 |
¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2015: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
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| Keywords | ナノマイクロ熱工学 / 低次元半導体 / 熱電変換 / 薄膜生成 / ナノインプリント |
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| Outline of Final Research Achievements |
Bismuth telluride thin films were made by using vacuum arc plasma deposition method. Bismuth telluride film with 10nm thickness was deposited on glass substrate heated at 200℃ during the deposition process. The thermoelectric properties of the films were measured, and the maximum Seebeck coefficient was 167 microW/K. The Seebeck coefficient was increased when the film thickness was decreased. However, the increase of the Seebeck coefficient can be explained well by classical carrier transport model. The measured ZT was only 0.5 at 300K. It was lower than the expected value of a low dimensional Bismuth telluride film. We demonstrated fabrication of nano-wire of Bismuth telluride by depositing the film on a nano-structured substrate. The Bismuth telluride nano-wire with 50nm diameter was fabricated successfully.
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Report
(4 results)
Research Products
(28 results)
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[Presentation] Bismuth Telluride thin films and their applications2015
Author(s)
Koji Miyazaki, Kunihiro Yamada, Shota Hama, Tomohide Yabuki
Organizer
14th International Union of Materials Research Societies-International Conference on Advanced Materials
Place of Presentation
Jeju, Korea
Year and Date
2015-10-25
Related Report
Int'l Joint Research / Invited
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