Fabrication of High-Performance Devices Using Self-Assembled Two-Dimensional Metal Nanostructures

2016 Fiscal Year Final Research Report

• Project/Area Number: 26810043
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Functional solid state chemistry
• Research Institution: The University of Tokyo
• Principal Investigator: Nishi Hiroyasu 東京大学, 生産技術研究所, 助教 (70714137)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 金属ナノ粒子 / 局在表面プラズモン / プラズモン誘起電荷分離 / 脱合金化 / プラズモンセンサ / 硫化銅ナノ粒子 / エレクトロクロミズム

Outline of Final Research Achievements

It is expected that two-dimensional metal nanoparticle arrays exhibit new functions that are derived from interparticle interaction between the particles. We found that gold nanoparticle array shows characteristic reflection spectra and that can be used as a more sophisticated localized surface plasmon resonance (LSPR) sensor than the conventional one. We also found a facile method to deposit metal nanoparticles on ITO, titanium dioxide, and other electrodes. On the basis of the method, various electrodes modified with metal nanoparticles were fabricated and applied to studies on plasmon-induced charge separation (PICS) by the use of gold-silver alloy nanoparticles, photo-induced dealloying of the alloy nanoparticles, oxidation potential of PICS, and potential-scanning LSPR sensors.

Free Research Field

光電気化学