2022 Fiscal Year Final Research Report
Synthesis and function of diverse three-dimensional inorganic nanoparticle superstructures
Project/Area Number |
20K21236
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 36:Inorganic materials chemistry, energy-related chemistry, and related fields
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Research Institution | Kyoto University |
Principal Investigator |
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Project Period (FY) |
2020-07-30 – 2023-03-31
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Keywords | ナノ粒子 / 自己集合 / 超格子 / 形状制御 / カチオン交換 |
Outline of Final Research Achievements |
In a one-step synthesis method of nanoparticle superlattices using chemical liquid-phase synthesis, control of the arrangement structure of copper sulfide nanoparticles was attempted. It was found that as the concentration of the alkylamine ligand increased, the aspect ratio of the spherical copper sulfide nanoparticles increased, approaching a more disk-like shape. In the subsequent self-assembly stage, the spherical copper sulfide nanoparticles aggregated into a face-centered cubic structure, forming a highly symmetric three-dimensional superlattice. On the other hand, the disk-shaped copper sulfide nanoparticles formed a unidirectional elongated superlattice by assembling in a columnar manner. Furthermore, by reacting other metal cations with the copper sulfide nanoparticle superlattice, successful conversion to a different metal sulfide superlattice was achieved through substitution with copper cations.
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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 |
ナノ粒子超格子を形成する従来の手法では多くの工程が必要で、量的にわずかしか得られないものがほとんどであったが、本研究で開発した手法によって迅速でスケーラブルなナノ粒子超格子を得られ、様々な応用に対する展開可能性を広げることができたと考えている。さらに、ナノ粒子の配列や組成を大きく制御できるようになったことで、広い研究分野での新しい物性開拓につながると期待される。
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