Top-down nanoassembly using deformable macroscale molecular aggregation as template

2019 Fiscal Year Final Research Report

• Project/Area Number: 18K18948
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 26:Materials engineering and related fields
• Research Institution: Osaka University
• Principal Investigator: Abe Hiroya 大阪大学, 接合科学研究所, 准教授 (50346136)
• Project Period (FY): 2018-06-29 – 2020-03-31
• Keywords: ナノ粒子

Outline of Final Research Achievements

As a technique to draw 2D and 3D integrated patterns of inorganic nanoparticles such as carbon nanotubes and graphene, we proposed a method of using organic molecular aggregates as a soft template and demonstrated it in this study. It was revealed that molecular aggregates in which surfactant molecules self-assembled in water and a polymer aggregate in which phase separation occurred in a poor solvent had deformable and flexible functions and were used as the templates. A top-down determined integration patterns of inorganic nanoparticles were successfully drawn by our proposed method.

Free Research Field

無機材料合成、コロイドプロセッシング、環境エネルギー材料開発

Academic Significance and Societal Importance of the Research Achievements

ナノテクノロジー技術の振興により、カーボンナノチューブを含め多種多様なナノ粒子が合成されている。こうしたナノ粒子をデバイスや機能材料に応用するためには、マクロスケールなレベルにまで接合・集積させると同時に、任意のパターンに加工しなければならない。本研究では、汎用の３Dプリンタのようなシンプルな方式にて、ナノ粒子をCAD等で設計した2次元あるいは3次元の集積パターンに描画する方法論を提案し、実証した。