MICROSCOPY Vol.46▶No.3 2011
â– Researches Today

Atomic Spectroscopy and Imaging of Graphene Edge

Masanori Koshino and Kazutomo Suenaga

Abstract: The analysis of the electron energy states from a single atom can be achieved by the atomic scale imaging and its energy states measurements. Here we performed the simultaneous atomic imaging and its spectroscopy from the edge atoms of a graphene sheet, a hexagonal carbon network. In particular, we found that the same element of carbon with different bonding states showed intrinsic inner-shell spectroscopy, giving new features in energy-loss near-edge structure (ELNES).

Key words: Graphene edge, Single atom imaging, Single atom spectroscopy, Energy-loss near edge structure (ELNES), First principle calculation