[22p-P03-1~23] 17 Nanocarbon Technology(Poster)

[22p-P03-12] Characterization of CVD graphene on Ir(111)/α-Al₂O₃(0001) by photoelectron momentum microscope

〇(M1)Eri Hashimoto¹, Keigo Tamura¹, Hayato Yamaguchi¹, Fumihiko Matsui², Shinji Koh¹ (1.Aoyamagakuin Univ., 2.IMS)

Keywords:graphene, CVD, photoelectron spectroscopy

We characterized CVD-grown graphene with high single-crystallinity on Ir(111)/α-Al₂O₃(0001) by photoelectron momentum microscopy. A multi-functional photoelectron momentum microscope (PMM), which is installed with element-specific valence band photoelectron spectroscopy and X-ray absorption spectroscopy, is a complementary characterization tool to conventional methods for comprehensive and quantitative characterization of graphene/Ir(111). Using PMM, we characterized the properties of CVD-grown graphene including the single-crystallinity, number of layers, crystal orientation, and degree of interaction between graphene and Ir(111) and clarified the relationship between these properties and the CVD growth conditions.