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On-Surface Synthesis and Spectroscopic Characterization of Laterally Extended Chevron Graphene Nanoribbons |
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| Authors: | Jacob D Teeter Dr Percy Zahl Mohammad Mehdi Pour Dr Paulo S Costa Prof Axel Enders Prof Alexander Sinitskii |
| Institution: | 1. Department of Chemistry, University of Nebraska – Lincoln, Lincoln, NE 68588 USA;2. Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973 USA;3. Department of Physics and Astronomy, University of Nebraska – Lincoln, Lincoln, NE 68588 USA |
| Abstract: | We report the on-surface synthesis and spectroscopic study of laterally extended chevron graphene nanoribbons (GNRs) and compare them with the established chevron GNRs, emphasizing the consistency of bandgap reduction of semiconducting GNRs with increased width. The laterally extended chevron GNRs grown on Au(111) exhibit a bandgap of about 2.2 eV, which is considerably smaller than the values reported for chevron GNRs in similar studies. |
| Keywords: | graphene nanoribbons noncontact atomic force microscopy On-Surface Synthesis scanning tunneling microscopy scanning tunneling spectroscopy |