Template synthesis of one-dimensional transition metal chalcogenides inside nanotubes
| Project/Area Number |
18K14088
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 28030:Nanomaterials-related
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
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| Project Period (FY) |
2018-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | ナノワイヤー / カーボンナノチューブ / 原子分解能電子顕微鏡 / 鋳型合成 / 遷移金属カルコゲナイド / ナノリボン / 電子顕微鏡 |
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| Outline of Final Research Achievements |
Atomically thin 1D transition metal monochalocogenides (TMMs) have been anticipated as promising building blocks for integrated nanoelectronics. However, their isolation has thus far remained a challenge, due to the lack of effective techniques. In this work, we report the facile synthesis of TMM nanowires by using carbon nanotubes as molds. Each nanowire is perfectly separated by a carbon nanotube with a minimal interaction, enabling detailed characterization of the single-wires. Experimental and theoretical analyses revealed that the choice of suitable metal oxides as a precursor provides feasible yields for their characterization. Transmission electron microscopy revealed unusual torsional motions absent in their bulk crystals. These vdW-wired materials offer solutions to theoretical questions such as low-dimensional electromechanical behavior and practical concerns such as flexible nanocables and high-efficiency cathodes.
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| Academic Significance and Societal Importance of the Research Achievements |
本ナノワイヤーは「ポストナノカーボン」として物性物理学で以前から重要性が認識され，多くの研究者が合成に挑戦してきたが，有力な合成法はなかった。カーボンナノチューブを用いた鋳造反応は本ナノワイヤーを合成する唯一の手段である。これにより，長年困難だった物性研究が飛躍的に進み，未知の量子現象や新機能の発見が期待できる。また，本ナノワイヤーはカーボンナノチューブの電気・熱輸送特性を大きく変調することがわかっており，カーボンナノチューブを材料にした両極性トランジスターや高効率な熱電変換素子が実現する可能性もある。それにより，工学分野への波及効果も期待でき，省エネルギー社会の実現にも貢献できる。
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Report
(3 results)
Research Products
(37 results)
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[Journal Article] Excited‐State Charge Transfer in Covalently Functionalized MoS2 with a Zinc Phthalocyanine Donor-Acceptor Hybrid2019
Author(s)
Ruben Canton‐Vitoria, Habtom B. Gobeze, Vicente M. Blas‐Ferrando, Javier Ortiz, Youngwoo Jang, Fernando Fernandez‐Lazaro, Angela Sastre‐Santos, Yusuke Nakanishi, Hisanori Shinohara, Francis D'Souza, Nikos Tagmatarchis
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Journal Title
Angewandte Chemie International Edition
Volume: 58
Issue: 17
Pages: 5712-5717
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] Isolation of Single-wired Transition Metal Monochalcogenides by Carbon Nanotubes2019
Author(s)
Y. Nakanishi, M. Nagata, S. Shukla, Z. Liu, T. Shiga, Y. Nakamura, T. Inoue, N. Kanda, T. Koyama, H. Kishida, K. Suenaga, and H. Shinohara
Organizer
IWEPNM2019
Related Report
Int'l Joint Research
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[Presentation] Isolation of single-wired Transition-metal Monochalcogenides by Carbon Nanotubes2019
Author(s)
Y. Nakanishi, M. Nagata, S. Shukla, Z. Liu, Y.-C. Lin, T. Shiga, Y. Nakamura, T. Inoue, N. Kanda, T. Koyama, H. Kishida, K. Suenaga, and H. Shinohara
Organizer
第56回フラーレン・ナノチューブ・グラフェン総合シンポジウム
Related Report
Int'l Joint Research
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