2023 Fiscal Year Final Research Report
Bottom-up approach to produce phosphorus nanoribbons
| Project/Area Number |
22K18944
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 28:Nano/micro science and related fields
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2022-06-30 – 2024-03-31
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| Keywords | リンナノリボン |
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| Outline of Final Research Achievements |
The creation of phosphorus atomic nanostructures is promising as a new material with a wide range of applications in the fields of electronics, optics, and energy. Previously reported studies on the synthesis of black phosphorus nanoribbons have only used top-down techniques in which bulk crystals are etched and decomposed using reducing agents. However, because etching occurs randomly, the width of the nanoribbons has a very large distribution, ranging from 10 nm to several μm, and it is not possible to control the width of the nanoribbons. To solve this problem, this study aims to propose and demonstrate a new bottom-up synthesis technique for phosphorus nanoribbons: a laser-induced solid-state reaction method, which in principle allows control of extremely fine widths on the molecular scale.
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| Free Research Field |
ナノ構造化学
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| Academic Significance and Societal Importance of the Research Achievements |
リン原子ナノ構造の創成は、電子工学、光学、エネルギー分野において有望であり、幅広い応用が期待される新しい材料である。従来報告された黒リンナノリボンの合成に関する研究ではバルク結晶を還元剤によりエッチング・分解させるトップダウンの手法のみが報告されているが、エッチングがランダムに起こるため、幅が10nmから数μmと非常に大きな分布を持ちナノリボンの幅を制御することができない。この問題解決のため、本研究では、原理的に分子スケールでの極細幅を制御できるリンナノリボンの新しいボトムアップ合成技術：レーザー誘起固相反応法を提案し、実証することを目的とした。
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