| 研究課題/領域番号 |
22K18693
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| 研究機関 | 大阪公立大学 |
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研究代表者 |
プラシデス コスマス 大阪公立大学, 大学院工学研究科, 教授 (90719006)
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| 研究期間 (年度) |
2022-06-30 – 2024-03-31
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| キーワード | Superconductivity / Molecular nanocarbons / Co-crystals / Charge injection / 2-dimensional |
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| 研究実績の概要 |
The project has been targeting the synthesis of new crystalline materials with two-dimensional-layered hybrid architectures comprising C60 and polyaromatic hydrocarbon building blocks. This has been successful for the polyaromatic hydrocarbon, triphenylene. The resulting strongly-correlated Mott insulating phases have been structurally characterized down to cryogenic temperatures and reveal unique architectures and a variety of phase transitions. They have now been chemically manipulated to afford crystalline reduced materials with two-dimensional architectures. Their properties focusing on metallicity and superconductivity are being actively pursued.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
1: 当初の計画以上に進展している
理由
The purpose of the project was to assemble unsaturated hydrocarbons of varying size, shape and electronic state together with C60 to generate new molecular electronic materials. This has been successfully carried out to an advanced stage. In particular, the resulting low-dimensional strongly correlated architectures
are being manipulated chemically to investigate the possibility of switching on superconductivity.
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| 今後の研究の推進方策 |
The research plan for the future years consists of two integrated components.
(A) Chemical synthesis.
We will create hybrid co-crystals of PAHs of varying size and shape and C60 and initiate attempts to intercalate them with alkali metals to produce electron-doped systems.
(B) Structural analysis.
We will carry out precise structural determination at low temperature and/or high pressure with synchrotron X-ray and neutron diffraction.
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| 次年度使用額が生じた理由 |
The original targets of this research project are rapidly achieved and we are proceeding in targeting the availability of the hybrid C6o-polyaromatic hydrocarbon materials in large-quantities to allow full physical characterization. The next steps involve more elaborate structural and physical characterization as a function of temperature as well as the utilization of high pressure to enhance the properties. Progress along these lines is extremely challenging. We anticipate that the significant resources necessary to proceed with the implementation, including those carried over will allow completion of the project.
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