Chemical Coordination Induced Fullerene Dimers on Hot Pt(111).

ABSTRACT: The fullerene family is known for its unique properties, facilitating the formation of large, lubricated nano-onions and the fragmentation into small carbon clusters through various processes. In this study, we explore the thermal evolution of C60${\rm C}_{60}$ islands on Pt(111), focusing on the segregation of C60${\rm C}_{60}$ islands, the formation of fullerene dimers, and the subsequent development of large graphene sheets. Using noncontact atomic force microscopy and scanning tunneling microscopy, we observed that after annealing at 500K$500 \,\mathrm{K}$ , the C60${\rm C}_{60}$ islands showed minimal change compared to their deposition at room temperature. However, at 800K$800 \,\mathrm{K}$ , pairs of separated C60${\rm C}_{60}$ dimers appeared, which, due to their low mobility, have

SUBMITTER: Liu Z 

PROVIDER: S-EPMC12338447 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature