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- Title
On-surface synthesis and edge states of NBN-doped zigzag graphene nanoribbons.
- Authors
Chang, Xiao; Huang, Li; Gao, Yixuan; Fu, Yubin; Ma, Ji; Yang, Huan; Liu, Junzhi; Fu, Xiaoshuai; Lin, Xiao; Feng, Xinliang; Du, Shixuan; Gao, Hong-Jun
- Abstract
Zigzag graphene nanoribbons (ZGNRs) with spin-polarized edge states have potential applications in carbon-based spintronics. The electronic structure of ZGNRs can be effectively tuned by different widths or dopants, which requires delicately designed monomers. Here, we report the successful synthesis of ZGNR with a width of eight carbon zigzag lines and nitrogen-boron-nitrogen (NBN) motifs decorated along the zigzag edges (NBN-8-ZGNR) on Au (111) surface, which starts from a specially designed U-shaped monomer with preinstalled NBN units at the zigzag edge. Chemical-bond-resolved non-contact atomic force microscopy (nc-AFM) imaging confirms the zigzag-terminated edges and the existence of NBN dopants. The electronic states distributed along the zigzag edges have been revealed after a silicon-layer intercalation at the interface of NBN-8-ZGNR and Au (111). Our work enriches the ZGNR family with a new dopant and larger width, which provides more candidates for future carbon-based nanoelectronic and spintronic applications.
- Subjects
NANORIBBONS; ATOMIC force microscopy; GRAPHENE; SCANNING tunneling microscopy; ELECTRONIC structure
- Publication
Nano Research, 2023, Vol 16, Issue 7, p10436
- ISSN
1998-0124
- Publication type
Article
- DOI
10.1007/s12274-023-5605-2