On-Surface Synthesis of NBN-Doped Zigzag-Edged Graphene Nanoribbons
Fu Y, Yang H, Gao Y, Huang L, Berger R, Liu J, Lu H, Cheng Z, Du S, Gao HJ, Feng X (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 59
Pages Range: 8873-8879
Journal Issue: 23
Abstract
We report the first bottom-up synthesis of NBN-doped zigzag-edged GNRs (NBN-ZGNR1 and NBN-ZGNR2) through surface-assisted polymerization and cyclodehydrogenation based on two U-shaped molecular precursors with an NBN unit preinstalled at the zigzag edge. The resultant zigzag-edge topologies of GNRs are elucidated by high-resolution scanning tunneling microscopy (STM) in combination with noncontact atomic force microscopy (nc-AFM). Scanning tunneling spectroscopy (STS) measurements and density functional theory (DFT) calculations reveal that the electronic structures of NBN-ZGNR1 and NBN-ZGNR2 are significantly different from those of their corresponding pristine fully-carbon-based ZGNRs. Additionally, DFT calculations predict that the electronic structures of NBN-ZGNRs can be further tailored to be gapless and metallic through one-electron oxidation of each NBN unit into the corresponding radical cations. This work reported herein provides a feasible strategy for the synthesis of GNRs with stable zigzag edges yet tunable electronic properties.
Involved external institutions
Technische Universität Dresden
Germany (DE)
Chinese Academy of Sciences (CAS) / 中国科学院
China (CN)
University of Hong Kong (HKU) / 香港大學
Hong Kong (HK)
Renmin University of China
China (CN)
Germany (DE)
Chinese Academy of Sciences (CAS) / 中国科学院
China (CN)
University of Hong Kong (HKU) / 香港大學
Hong Kong (HK)
Renmin University of China
China (CN)
How to cite
APA:
Fu, Y., Yang, H., Gao, Y., Huang, L., Berger, R., Liu, J.,... Feng, X. (2020). On-Surface Synthesis of NBN-Doped Zigzag-Edged Graphene Nanoribbons. Angewandte Chemie International Edition, 59(23), 8873-8879. https://doi.org/10.1002/anie.202000488
MLA:
Fu, Yubin, et al. "On-Surface Synthesis of NBN-Doped Zigzag-Edged Graphene Nanoribbons." Angewandte Chemie International Edition 59.23 (2020): 8873-8879.
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