[17a-B309-1~10] 17.2 Graphene

[17a-B309-4] Mechanism of Edge Termination in CVD Growth of hBN/Graphene Heterostructure

〇Hiroyuki Kageshima¹, Shengnan Wang², Hiroki Hibino³ (1.Shimane Univ., 2.NTT BRL, 3.Kwansei Gakuin Univ.)

Keywords:graphene, hBN, first-principles calculation

We have experimentally successfully fabricated vertical and horizontal hBN/graphene heterostructures by CVD growth. We believe that the reason why such different production was possible is that the edges of hBN are H-terminated and the edges of graphene are not H-terminated. This time, we focus on the precursors in the CVD growth, and explore its origins based on the first-principles calculations from the viewpoint of what kind of atoms and molecules contribute to the growth.