Creation of nanowhisker growth technology for improvement of energy material performance by quantum effect
Project/Area Number |
19K22154
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 31:Nuclear engineering, earth resources engineering, energy engineering, and related fields
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Research Institution | Aichi Institute of Technology (2020-2021) Nagoya University (2019) |
Principal Investigator |
Ichino Yusuke 愛知工業大学, 工学部, 教授 (90377812)
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Project Period (FY) |
2019-06-28 – 2022-03-31
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Project Status |
Completed (Fiscal Year 2021)
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Budget Amount *help |
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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Keywords | 超伝導 / ナノウィスカー / 液相成長 / VLS成長 / 高品質薄膜 / 高速成膜 / 高品質結晶 / 酸化物超伝導 / VLS / 液相安定化 / 機能性酸化物 |
Outline of Research at the Start |
酸化物超伝導体や酸化物熱電変換材料などの酸化物エネルギー材料は、エネルギーの高効率輸送、貯蔵や生成に大きく貢献する。しかし、実用化されている金属間化合物エネルギー材料と比較すると、超伝導では臨界電流密度の向上、熱電変換材料では熱電変換効率の向上が必要とされている。これらのエネルギー材料は、ナノメートルサイズの細線化を行うことで量子効果によってエネルギー性能が向上する可能性がある。 本課題では、量子効果によって酸化物エネルギー材料の性能を劇的に向上させることを目的として、これまで培ってきた気相薄膜結晶成長技術を駆使してエネルギー材料のナノひげ状結晶(ナノウィスカー)を成長させる技術を創製する。
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Outline of Final Research Achievements |
Energy materials such as superconductors and thermoelectric materials contribute greatly to highly efficient transport, storage and generation of energy in a sustainable society. In this project, we aim to dramatically improve the performance of energy materials by quantum effects, and to create a technology to grow nano-whisker crystals of energy materials by using the vapor phase thin film crystal growth technology we have developed. Nano-whiskers made of YBa2Cu3Oy (YBCO) superconductor could not be obtained by using liquid phase materials such as Au and Ba-Cu-O-Ag. However, high quality YBCO films could be obtained due to the effect of growth through the liquid phase.
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Academic Significance and Societal Importance of the Research Achievements |
本課題の当初の目的であったエネルギー材料のナノウィスカーを作製することはできなかった。しかしながら、YBCO超伝導体の高品質な単結晶薄膜を得ることはできた。なおかつ、液相組成の最適化によって従来の気相法よりも高品質に、かつ高速にYBCO膜を得ることができた。これによって、YBCO超伝導線材を高性能かつ高速に量産できる技術の礎となる。
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Report
(4 results)
Research Products
(47 results)
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[Presentation] Strongly Enhanced Critical Current in thickened BaHfO3-doped YBa2Cu3Oy Coated Conductors prepared by Vapor-Liquid-Solid Growth Technique.2019
Author(s)
T. Ito, K. Yasuda, Y. Tsuchiya, Y. Ichino, Y. Yoshida, A. Ichinose, S. Awaji, T. Okada
Organizer
32th International Symposium on Superconductivity 2019, WB1-3, Dec. 3-5, 2019, Miyako Messe, Kyoto, Japan (oral)
Related Report
Int'l Joint Research
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[Presentation] Rectification by Superconducting Diodes Made of REBCO Films2019
Author(s)
Y. Tsuchiya, K. Suzuki, T. Hori, Y. Ichino, Y. Yoshida
Organizer
32th International Symposium on Superconductivity 2019, PC7-4, Dec. 3-5, 2019, Miyako Messe, Kyoto, Japan (oral)
Related Report
Int'l Joint Research
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[Presentation] Thickening of YBa2Cu3Oy coated conductors fabricated by self-heating technique in Pulsed Laser Deposition method and evaluation of the superconducting properties2019
Author(s)
W. Sato, Y. Tsuchiya, Y. Ichino, A. Ichinose, Y. Yoshida
Organizer
32th International Symposium on Superconductivity 2019, WBP5-2, Dec. 3-5, 2019, Miyako Messe, Kyoto, Japan (poster)
Related Report
Int'l Joint Research
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[Presentation] Fabrication of YBa2Cu3Oy coated conductor by Vapor-Liquid-Solid growth technique using Reel-to-Reel system2019
Author(s)
K. Yasuda, T. Ito, Y. Tsuchiya, Y. Ichino, Y. Yoshida
Organizer
32th International Symposium on Superconductivity 2019, WBP8-3, Dec. 3-5, 2019, Miyako Messe, Kyoto, Japan (poster)
Related Report
Int'l Joint Research
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[Presentation] Angular dependence of critical current for REBCO coated conductor under various bending strains2019
Author(s)
K. Hatano, H. Oguro, M. Miura, Y. Ichino, Y. Kamihara
Organizer
32th International Symposium on Superconductivity 2019, WBP8-4, Dec. 3-5, 2019, Miyako Messe, Kyoto, Japan (poster)
Related Report
Int'l Joint Research
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