[21a-PB1-1~86] 17 Nanocarbon Technology (Poster)

[21a-PB1-33] Bottom-up growth of edge-functionalized graphene nanoribbons

〇Manabu Ohtomo¹, Hironobu Hayashi², Hideyuki Jippo¹, Junichi Yamaguchi¹, Mari Ohfuchi¹, Hiroko Yamada², Shintaro Sato¹ (1.Fujitsu Labs. Ltd. and Fujitsu Ltd., 2.NAIST)

Keywords:Nanoribbon, graphene, on-surface

The on-surface synthesis of graphene nanoribbons (GNRs) enables us to obtain GNRs with atomically-precise edges, which is a promising material for backward diode or tunneling field-effect transistors (TFET). The edge-functionalization of bottom-up GNRs is one of the essential technology required for realizing well-defined GNR heterojunction. The functional groups at the edges of GNR precursors, though, are often detached during on-surface reaction partially due to protonation of GNR edges during cyclo-dehydrogenation. In this study, we report on the on-surface GNR growth using precursors with methylenedioxy functional groups. We confirmed that the obtained GNRs have oxygen-containing groups at the edges.