File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Fabrication of sulfur-doped cove-edged graphene nanoribbons on Au(111)

TitleFabrication of sulfur-doped cove-edged graphene nanoribbons on Au(111)
Authors
Keywordsnon-contact atomic force microscopy
on-surface synthesis
scanning tunneling microscopy
sulfur-doped cove-edged graphene nanoribbons
Issue Date2021
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/1674-1056/
Citation
Chinese Physics B, 2021, v. 30 n. 7, p. article no. 077306 How to Cite?
AbstractThe on-surface synthesis from predesigned organic precursors can yield graphene nanoribbons (GNRs) with atomically precise widths, edge terminations and dopants, which facilitate the tunning of their electronic structures. Here, we report the synthesis of novel sulfur-doped cove-edged GNRs (S-CGNRs) on Au(111) from a specifically designed precursor containing thiophene rings. Scanning tunneling microscopy and non-contact atomic force microscopy measurements elucidate the formation of S-CGNRs through subsequent polymerization and cyclodehydrogenation, which further result in crosslinked branched structures. Scanning tunneling spectroscopy results reveal the conduction band minimum of the S-CGNR locates at 1.2 eV. First-principles calculations show that the S-CGNR possesses an energy bandgap of 1.17 eV, which is evidently smaller than that of an undoped cove-edged GNR (1.7 eV), suggesting effective tuning of the bandgap by introducing sulfur atoms. Further increasing the coverage of precursors close to a monolayer results in the formation of linear-shaped S-CGNRs. The fabrication of S-CGNRs provides one more candidate in the GNR toolbox and promotes the future applications of heteroatom-doped graphene nanostructures.
Persistent Identifierhttp://hdl.handle.net/10722/306339
ISSN
2023 Impact Factor: 1.5
2023 SCImago Journal Rankings: 0.350
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYang, H-
dc.contributor.authorGao, Y-
dc.contributor.authorNiu, W-
dc.contributor.authorChang, X-
dc.contributor.authorHuang, L-
dc.contributor.authorLiu, J-
dc.contributor.authorMai, Y-
dc.contributor.authorFeng, X-
dc.contributor.authorDu, S-
dc.contributor.authorGao, HJ-
dc.date.accessioned2021-10-20T10:22:13Z-
dc.date.available2021-10-20T10:22:13Z-
dc.date.issued2021-
dc.identifier.citationChinese Physics B, 2021, v. 30 n. 7, p. article no. 077306-
dc.identifier.issn1674-1056-
dc.identifier.urihttp://hdl.handle.net/10722/306339-
dc.description.abstractThe on-surface synthesis from predesigned organic precursors can yield graphene nanoribbons (GNRs) with atomically precise widths, edge terminations and dopants, which facilitate the tunning of their electronic structures. Here, we report the synthesis of novel sulfur-doped cove-edged GNRs (S-CGNRs) on Au(111) from a specifically designed precursor containing thiophene rings. Scanning tunneling microscopy and non-contact atomic force microscopy measurements elucidate the formation of S-CGNRs through subsequent polymerization and cyclodehydrogenation, which further result in crosslinked branched structures. Scanning tunneling spectroscopy results reveal the conduction band minimum of the S-CGNR locates at 1.2 eV. First-principles calculations show that the S-CGNR possesses an energy bandgap of 1.17 eV, which is evidently smaller than that of an undoped cove-edged GNR (1.7 eV), suggesting effective tuning of the bandgap by introducing sulfur atoms. Further increasing the coverage of precursors close to a monolayer results in the formation of linear-shaped S-CGNRs. The fabrication of S-CGNRs provides one more candidate in the GNR toolbox and promotes the future applications of heteroatom-doped graphene nanostructures.-
dc.languageeng-
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/1674-1056/-
dc.relation.ispartofChinese Physics B-
dc.rightsChinese Physics B. Copyright © Institute of Physics Publishing Ltd.-
dc.rightsThis is an author-created, un-copyedited version of an article published in [insert name of journal]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/[insert DOI].-
dc.subjectnon-contact atomic force microscopy-
dc.subjecton-surface synthesis-
dc.subjectscanning tunneling microscopy-
dc.subjectsulfur-doped cove-edged graphene nanoribbons-
dc.titleFabrication of sulfur-doped cove-edged graphene nanoribbons on Au(111)-
dc.typeArticle-
dc.identifier.emailLiu, J: juliu@hku.hk-
dc.identifier.authorityLiu, J=rp02584-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/1674-1056/abfbd0-
dc.identifier.scopuseid_2-s2.0-85110955705-
dc.identifier.hkuros327170-
dc.identifier.volume30-
dc.identifier.issue7-
dc.identifier.spagearticle no. 077306-
dc.identifier.epagearticle no. 077306-
dc.identifier.isiWOS:000674088100001-
dc.publisher.placeUnited Kingdom-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats