[17a-Z24-1~9] 12.3 Functional Materials and Novel Devices

[17a-Z24-8] Observation of photo-modulated proton conductivity at Au nanostructure interface

〇Tomohiro Fukushima¹, Motohiro Sai², Kei Murakoshi¹ (1.Department of Chemistry, Hokkaido Univ., 2.Graduate School of Chemical Science and Engineering, Hokkaido Univ.)

Keywords:Proton conductivity, Plasmon resonance, Thin film

In this study we explored the modulation of ion conductivity by using plasmon-active nanostructure. We prepared Nafion film over plasmon-active Au nanostructure substrate. Photo-modulated proton conductivity was not observed when thickness of the Nafion film was 200 nm. On the other hand, we observed photo-modulated proton conductivity when the thickness of Nafion was 30 nm.