• 文献标题:   On-surface synthesis and edge states of NBN-doped zigzag graphene nanoribbons
  • 文献类型:   Article, Early Access
  • 作  者:   CHANG X, HUANG L, GAO YX, FU YB, MA J, YANG H, LIU JZ, FU XS, LIN X, FENG XL, DU SX, GAO HJ
  • 作者关键词:   zigzag graphene nanoribbon, nitrogenboronnitrogen nbn dopant, edge state, scanning tunneling microscopy stm, noncontact atomic force microscopy ncafm, density functional theory dft calculation
  • 出版物名称:   NANO RESEARCH
  • ISSN:   1998-0124 EI 1998-0000
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1007/s12274-023-5605-2 EA MAR 2023
  • 出版年:   2023

▎ 摘  要

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.