Recent advances in the synthesis of graphene nanoribbons using on-surface bottom-up techniques have enabled fabrication of not only atomically well-defined one-dimensional structures, but also two-dimensional structures such as nanoporous graphenes. These are particularly interesting for applications due to their sieve-like topology. Here we present a new methodology for creating covalently connected, fully conjugated two-dimensional graphene structures through the utilization of cyclopentadiene (CP) moieties. CP elements exhibit a propensity to initiate fusion between nanoribbons and result in a two-dimensional structure with well-defined interface topology. The resulting new material is analyzed using scanning tunneling microscopy (STM), scanning tunneling spectroscopy (STS), and bond-resolved scanning tunneling microscopy (BRSTM). We observe emergent interface-localized electronic states that hybridize to yield a dispersive two-dimensional band of states at an energy inside the bandgap of an isolated GNR.
*Dutch Research Council National Science Foundation Office of Naval Research Department of Energy, BES
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Presenters
Peter Jacobse
University of California, Berkeley
Authors
Peter Jacobse
University of California, Berkeley
Ryan McCurdy
University of California, Berkeley
Daniel Rizzo
University of California, Berkeley
Jingwei Jiang
University of California, Berkeley
Physics, University of California, Berkeley
Paul L Butler
Solid State Spectrsocopy, Max Planck Institute for Solid State Research
University of California, Berkeley
Gregory Veber
University of California, Berkeley
Steven Louie
University of California at Berkeley, and Lawrence Berkeley National Laboratory
Department of Physics, University of California, Berkeley, Berkeley, California 94720, USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, C
University of California, Berkeley
Department of Physics, University of California, Berkeley
Lawrence Berkeley National Laboratory and University of California at Berkeley
Department of Physics, University of California at Berkeley and Lawrence Berkeley National Laboratory
Department of Physics, UC Berkeley
Physics, Unviersyt of Calfornia, Berkeley
Physics, University of California, Berkeley
Physics, University of California, Berkeley and Lawrence Berkeley National Lab
