Inkjet Printing for Design of Shape and Function of Thin Film Metallic Alloys

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K05968
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Materials/Mechanics of materials
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Aono Yuko 東京工業大学, 工学院, 准教授 (20610033)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: ナノ粒子 / アークプラズマ蒸着 / 卑金属材料

Outline of Final Research Achievements

In this research, novel inkjet printing method for thin film metallic alloys was proposed. This method uses multi-nanoparticle inks and simultaneously designs both shape and ratio of each nanoparticle. It enables deposition of composition-gradated film which has unique function comparing with homogeneous film. However, synthesis of nanoparticle, especially nanoparticle of base material is not established technology, so we researched about it.
Pulse ark plasma deposition method was used for the synthesis of iron and copper nanopartickes. These material became gas phase and captured in polyethylene glycol which is low vapor pressure liquid. As a result, iron and copper nanoparticles could be fabricated by the proposed method. But for material with high ionization tendency comparing with hydrogen such as iron, coolant inert gas played important role to make sub-100nm particles without reaction between ionized metal and the capture liquid.

Free Research Field

機械材料，材料加工

Academic Significance and Societal Importance of the Research Achievements

本研究で提案した手法により，Feに代表される卑金属ナノ粒子の生成に成功した．これは，不活性ガスでの冷却と，液体による捕捉をすることで連続的にナノ粒子合成ができるため，プリンティング法による薄膜金属デバイス製造技術の材料製造法となり得る．これにより，これまでとは全く異なるプリンティング法により合金組成に基づく機能性を空間的にデザイン可能な新しい成膜法へ展開できる可能性がある．