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On-surface synthesis of superlattice arrays of ultra-long graphene nanoribbons
- Moreno, Cesar, Paradinas, Markos, Vilas-VarelaPresent address: GalChimia, 15823 O Pino, Spain., Manuel, PanighelPresent address: CNR-IOM, S.S. 14 km 163.5, Basovizza, 34149 Trieste, Italy., Mirko, Ceballos, Gustavo, Peña, Diego, Mugarza, Aitor
- Chemical communications 2018 v.54 no.68 pp. 9402-9405
- anisotropy, gold, graphene, nanogold, periodicity, polymerization
- We report the on-surface synthesis of graphene nanoribbon superlattice arrays directed by the herringbone reconstruction of the Au(111) surface. The uniaxial anisotropy of the zigzag pattern of the reconstruction defines a one dimensional grid for directing the Ullmann polymerization and inducing periodic arrays of parallel ultra-long nanoribbons (>100 nm), where the periodicity is varied with coverage at discrete values following a hierarchical templating behavior.