[10a-S103-1~9] 17.2 Graphene

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[10a-S103-4] Hydrogen Ion Beam Permeation through Graphene: Stopping Potential as a Probe of Work Function and Permeation Barrier

〇Tomoo Terasawa^1,2, Takuji Takahashi², Katsuyuki Fukutani^1,2, Satoshi Yasuda¹, Hidehito Asaoka¹ (1.JAEA, 2.IIS, Univ. of Tokyo)

Keywords:

graphene,hydrogen ion,ion beam

We have proposed a ultra-slow ion beam irradiation method to elucidate the hydrogen ion permeation mechanism in graphene. In this presentation, we demonstrate that the stopping potential for He⁺ ion beam permeation through graphene is determined by the work function of graphene. We will also discuss the evaluation of the permeation barriers by the stopping potentials for H⁺, H₂⁺, D⁺, and D₂⁺ ions.