Control of physical properties of atomically-thin perovskite films and its application to high-performance dielectric devices
| Project/Area Number |
17H03395
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Nagoya University |
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Principal Investigator |
Osada Minoru 名古屋大学, 未来材料・システム研究所, 教授 (10312258)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2019: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2017: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
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| Keywords | ２次元材料 / 酸化物ナノシート / 高誘電体 / 強誘電体 / 高誘電性ナノシート / 強誘電性ナノシート / 誘電体デバイス / ２次元物質 / ナノシート / ペロブスカイト / 原子層エンジニアリング / 原子膜 |
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| Outline of Final Research Achievements |
Ultrathin films with high-k dielectric/ferroelectric properties form the basis of modern electronics. With the further miniaturization of electronic devices, conventional materials are expected to experience challenge because of their critical thickness, where the dielectric/ferroelectric responses are unstable or even disappeared if the film thickness is reduced to the nanometer scale or below a two-dimensional (2D) limit. In this study, we try to explore 2D dielectrics/ferroelectrics and related device applications. Through detailed investigations on critical properties at 0.5~3 nm scale, we clarified dielectric/ferroelectric responses at 2D limit, and discovered new high-k dielectric/ferroelectric nanosheets. We also utilized layer-by-layer engineering of 2D nanosheets, and successfully developed 2D capacitors/FETs with improved performances.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究は、エレクトロニクスの基盤技術である誘電材料・デバイスが直面している課題に対して、材料・プロセスの基礎に戻って新たなコンセプトを創出しようとする提案、画期的な素材・プロセスの採用で従来技術の置き換えや現行デバイス性能の限界を突破する先端エレクトロニクスを追求する提案を含んだ極めてチャレンジ性の高いテーマである。特に本研究で開発した原子膜high-k技術をベースとした高性能コンデンサ、蓄電キャパシタは、従来の材料、技術では到達できない超高容量、高エネルギー密度を実現するものであり、革新的デバイスの創出・発展への貢献が期待される。
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Report
(4 results)
Research Products
(91 results)
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[Journal Article] On/off boundary of photocatalytic activity between single- and bilayer MoS22020
Author(s)
T. Taniguchi, L. Nurdiwijayanto, S. Li, H-E. Lim, Y. Miyata, X. Lu, R. Ma, D-M. Tang, S. Ueda, K. Tsukagoshi, T. Sasaki, M. Osada
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Journal Title
ACS Nano
Volume: 14
Issue: 6
Pages: 6663-6672
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] van der Waals force layered multiferroic hybrid perovskite (CH3NH3)2CuCl4 single crystals2020
Author(s)
Z. Hu, H. Zhao, Z. Cheng, J. Ding, H. Gao, Y. Han, S. Wang, Z. Xu, Y. Zhou, T. Jia, H. Kimura, M. Osada:
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Journal Title
Phys. Chem. Chem. Phys.
Volume: 22
Issue: 7
Pages: 4235-4239
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Wafer-scale and deterministic patterned growth of monolayer MoS2 via vapor-liquid-solid method2019
Author(s)
S. Li , Y-C. Lin, X-Y. Liu, Z. Hu, J. Wu, H. Nakajima, S. Liu, T. Okazaki, W. Chen, T. Minari, Y. Sakuma, K. Tsukagoshi , K. Suenaga, T. Taniguchi, M. Osada
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Journal Title
Nanoscale
Volume: 11
Issue: 34
Pages: 16122-16129
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Origin of extended UV stability of 2D atomic layer titania-based perovskite solar cells unveiled by ultrafast spectroscopy2019
Author(s)
Anusha Puliparambil Thilakan, Jia-Xing Li, Tzu-Pei Chen, Shao-Sian Li, Chun-Wei Chen, Minoru Osada, Kazuhito Tsukagoshi, Takayoshi Sasaki, Atsushi Yabushita, Kaung-Hsiung Wu, Chih-Wei Luo
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Journal Title
ACS Applied Materials & Interface
Volume: 11
Issue: 24
Pages: 21473-21480
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Vapour-liquid-solid growth of monolayer MoS2 nanoribbons2018
Author(s)
Shisheng Li, Yung-Chang Lin, Wen Zhao, Jing Wu, Zhuo Wang, Zehua Hu, Youde Shen, Dai-Ming Tang, Junyong Wang, Qi Zhang, Hai Zhu, Leiqiang Chu, Weijie Zhao, Chang Liu, Zhipei Sun, Takaaki Taniguchi, Minoru Osada, Wei Chen, Qing-Hua Xu, Andrew Thye Shen Wee, Kazu Suenaga, Feng Ding, and Goki Eda
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Journal Title
Nature Materials
Volume: 17
Issue: 6
Pages: 535-542
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Multifield Control of Domains in a Room-Temperature Multiferroic 0.85BiTi0.1Fe0.8Mg0.1O3-;0.15CaTiO3 Thin Film2018
Author(s)
T. Jia, Z. Fan, J. Yao, C. Liu, Y. Li, J. Yu, B. Fu, H. Zhao, M. Osada, E. N. Esfahani, Y. Yang, Y. Wang, J-Y. Li, H. Kimura, Z. Cheng
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Journal Title
ACS Appl. Mater. Interfaces
Volume: 10
Issue: 24
Pages: 20712-20719
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Self-Assembly Atomic Stacking Transport Layer of Two-Dimensional Titania for Perovskite Solar Cells2018
Author(s)
T. P. Chen, C.-W. Lin, S.-S. Li, Y.-H. Tsai, C.-Y. Wen, W. Lin, F.-M. Hsiao, Y.-P. Chiu, K. Tsukagoshi, M. Osada, T. Sasaki, C.-W. Chen
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Journal Title
Adv. Energy Mater.
Volume: 8
Issue: 2
Pages: 1701722-1701722
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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