[15p-A33-1~19] 17.2 Graphene

[15p-A33-6] Enhancing the photoluminescence of graphene oxide by second KMnO₄/H⁺ treatment

〇Yudi Tu¹, Toru Utsunomiya¹, Takashi Ichii¹, Hiroyuki Sugimura¹ (1.Kyoto Univ.)

Keywords:graphene, fluorescence, photoluminescence

As reported previously, the electronic and optical properties of graphene oxide (GO) can be easily tuned by regulating the reduction/oxidation level of it. In this presentation, we applied a second KMnO₄/H⁺ treatment to enhance its photoluminescence (PL) intensity. This strategy also demonstrated the possibility to shift the PL wavelength of GO.