Figure 1
From: Fine tuning of graphene-metal adhesion by surface alloying
Schematic illustration of our experimental design for graphene growth on a PtRu surface alloy.
(a) The clean Ru(0001) single crystal. (b) Pt islands (yellow atoms) formed after room temperature deposition of a submonolayer amount of Pt on Ru(0001). (c) The PtRu surface alloy obtained by annealing the system to 1300 K to induce intermixing of the two metal species in the top layer. (d) GR growth on the PtRu surface alloy by ethylene CVD at 1050 K; the C layer starts growing along the substrate steps and subsequently extends to the terraces. (e) Extended, long range ordered GR layer on the PtRu surface alloy.
