Three dimensional fabrication with a nanopipette using electrophoresis deposition

2014 Fiscal Year Final Research Report

• Project/Area Number: 25630024
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Production engineering/Processing studies
• Research Institution: Shizuoka University
• Principal Investigator: IWATA Futoshi 静岡大学, 電子工学研究所, 教授 (30262794)
• Co-Investigator(Kenkyū-buntansha): NAKAO Hidenobu 独立行政法人物質, 材料研究機構, 主任研究員 (80421395)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 微細加工 / ナノピペット / 電気泳動 / ナノ微粒子

Outline of Final Research Achievements

We have developed a novel and simple technique of three-dimension structure fabrication using a nanopipette filled with a metal colloidal solution. As for fabrication of the pillar, the pipette edge is contacted on the substrate, and then it was moved upward while keeping deposition of the metal colloidal solution. The diameter of the pillar is dependent on the aperture size of the pipette. To improve the reproducibility of the formation, the amount of deposition of the Au colloidal solution was controlled by feedback loop that maintains the pre-defined constant current under electrophoresis deposition. This technique would be expected as a fabrication method for micro and nanometer-scale devices.

Free Research Field

工学