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• W4225542257 abstract "Doped graphene nanoribbons (GNRs) with heteroatoms are a principal strategy to fine-tune the electronic structures of GNRs for future device applications. Here, we successfully synthesized the N=9 nitrogen-doped armchair GNR on the Au(111) surface. Due to the flexibility of precursor molecules, three different covalent bonds (C-C, C-N, N-N) are formed in the GNR backbone. Scanning tunneling spectroscopy analysis together with band structure calculations reveals that the band gap of the N-9-AGNRs (C-C) will be enlarged compared to pristine 9-AGNRs, and the C-N bond and N-N bond at the isolated site of N-9-AGNR (C-C) will introduce new defect states near the Fermi level. DFT calculations reveal that the electronic structure of N-9-AGNR (C-C) shows semiconductor character, while N-9-AGNR (C-N) and N-9-AGNR (N-N) display metallic character. Our results provide a promising route for creating more complex molecular heterostructures with tunable band gaps, which may be useful for future molecular electronics and memory device applications." @default.
• W4225542257 created "2022-05-05" @default.
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• W4225542257 date "2022-05-17" @default.
• W4225542257 modified "2023-10-14" @default.
• W4225542257 title "On‐Surface Synthesis of a Nitrogen‐Doped Graphene Nanoribbon with Multiple Substitutional Sites" @default.
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• W4225542257 doi "https://doi.org/10.1002/anie.202204736" @default.
• W4225542257 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35452167" @default.
• W4225542257 hasPublicationYear "2022" @default.
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