Diffusion-controlled on-surface synthesis of graphene nanoribbon heterojunctions

We report a new diffusion-controlled on-surface synthesis approach for graphene nanoribbons (GNR) consisting of two types of precursor molecules, which exploits distinct differences in the surface mobilities of the precursors. This approach is a step towards a more controlled fabrication of complex GNR heterostructures and should be applicable to the on-surface synthesis of a variety of GNR heterojunctions.

Automated summary

We introduce a novel diffusion-controlled on-surface synthesis approach for graphene nanoribbons (GNR), employing two types of precursor molecules that exhibit distinct differences in surface mobilities. This method enables the controlled fabrication of complex GNR heterostructures and has potential applicability to the synthesis of various GNR heterojunctions.