Fig. 6: Reconstruction of BL to ML reorganization of polyanthryl oligomers in a nano-island after the 200 °C and 250 °C annealing steps.
From: Long and isolated graphene nanoribbons by on-surface polymerization on Au(111)
a A scheme overlaid on the high-resolution STM image shows the 1st layer and 2nd layer oligomer chains in a BL configuration of nano-island at 200 °C in blue and red frames, respectively. Each isolated stripe corresponds to an oligomer chain. Molecular model schematics showing (b) plane and (c) cross-sectional views of two-layered oligomer nano-island correlating the experimental STM topograph configuration in (a). d–f Schematic model representations of reorganized ML configuration of oligomer nano-island at 250 °C in blue frames similar to the ones presented in (a–c), respectively. Scale bars are 1 nm in (a, d).
