Fabrication of functional nanoribbons via on-surface synthesis
Project/Area Number |
18H01807
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 28010:Nanometer-scale chemistry-related
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Research Institution | The University of Tokyo |
Principal Investigator |
Shiotari Akitoshi 東京大学, 大学院新領域創成科学研究科, 助教 (50755717)
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Project Period (FY) |
2018-04-01 – 2021-03-31
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Project Status |
Completed (Fiscal Year 2020)
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Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
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Keywords | 炭素材料 / グラフェンナノリボン / 表面合成 / 分子スイッチ / 原子間力顕微鏡 / 表面合成法 / 走査トンネル顕微鏡 / 表面科学 / ナノ炭素材料 / 多分散指数 |
Outline of Final Research Achievements |
In this study, a novel nanocarbon material was fabricated by the on-surface synthesis method with two kinds of precursors (heteroassembly) on a gold surface. The atomic structure of the product was identified by high-spatial resolution atomic force microscopy (AFM), and it was demonstrated that the nanoribbon works as a single-molecule mechanical switch. The ribbon terminal has a spring-washer-like carbon framework, and can be flipped by a mechanical stimuli from an AFM tip in a selective and reversible manner.
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Academic Significance and Societal Importance of the Research Achievements |
本研究では、新しいアプローチの合成スキームによって、単分子スイッチとして機能するリボン分子の作製・構造決定・機能評価を実現した。それに加えて、その研究過程で、表面合成法によってグラフェンナノリボンを得るための合成パラメータ制御を系統的に行い、より高品質な生成物を得るための条件を見出している。 このような本研究の表面合成および機能評価スキームで得られた知見を、従来の有機化学合成法による原料分子の設計と組み合わせることで、より複雑な機能を発現する分子の創成が可能になり、単分子デバイスや分子マシンの実用的研究が進展すると期待される。
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Report
(4 results)
Research Products
(48 results)
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[Journal Article] Detection of Spin Transfer from Metal to Molecule by Magnetoresistance Measurement2020
Author(s)
H. Gamou, K. Shimose, R. Enoki, E. Minamitani, A. Shiotari, Y. Kotani, K. Toyoki, T. Nakamura, Y. Sugimoto, M. Kohda, J. Nitta, and S. Miwa,
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Journal Title
Nano Letters
Volume: 20
Issue: 1
Pages: 75-80
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Realization of Spin-dependent Functionality by Covering a Metal Surface with a Single Layer of Molecules2019
Author(s)
H. IsshikH. Isshiki , K. Kondou, S. Takizawa, K. Shimose, T. Kawabe, E. Minamitani, N. Yamaguchi, F. Ishii, A. Shiotari, Y. Sugimoto, S. Miwa, and Y. Otani
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Journal Title
NANO LETTERS
Volume: 10
Issue: 10
Pages: 7119-7123
DOI
NAID
Related Report
Peer Reviewed
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[Presentation] Electronic properties of bottom-up synthesized 17- and 13-atom-wide graphene nanoribbons2020
Author(s)
Junichi Yamaguchi , Hironobu Hayashi, Hideyuki Jippo, Akitoshi Shiotari, Manabu Ohtomo, Mitsuhiro Sakakura , Nao Hieda, Naoki Aratani, Mari Ohfuchi, Yoshiaki Sugimoto, Hiroko Yamada, and Shintaro Sato
Organizer
MRS Fall meeting
Related Report
Int'l Joint Research
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[Presentation] Spin-to-charge current conversion at a molecule/metal interface2020
Author(s)
H. Isshiki, K. Kondou, S. Takizawa, K. Shimose, T. Kawabe, E. Minamitani, N. Yamaguchi, F. Ishii, A. Shiotari, Y. Sugimoto, S. Miwa, Y. Otani
Organizer
New Perspective in Spin Conversion Science (NPSCS2020)
Related Report
Int'l Joint Research
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