Sun, Qiang; Jiang, Hao; Yan, Yuyi; Fasel, Roman; Ruffieux, Pascal (2022). Molecular heterostructure by fusing graphene nanoribbons of different lengths through a pentagon ring junction. Nano Research, 15(9), pp. 8465-8469. Springer 10.1007/s12274-022-4410-7
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22_Sun_NanoRes_Molecular_heterostructure_by_fusing_graphene_nanoribbons_of_different_lenghts_through_a_pentagon_ring_junction.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (1MB) | Preview |
Graphene nanoribbons (GNRs) have attracted great research interest because of their widely tunable and unique electronic properties. The required atomic precision of GNRs can be realized via on-surface synthesis method. In this work, through a surface assisted reaction we have longitudinally fused the pyrene-based graphene nanoribbons (pGNR) of different lengths by a pentagon ring junction, and built a molecular junction structure on Au (111). The electronic properties of the structure are studied by scanning tunneling spectroscopy (STS) combined with tight binding (TB) calculations. The pentagon ring junction shows a weak electronic coupling effect on graphene nanoribbons, which makes the electronic properties of the two different graphene nanoribbons connected by a pentagon ring junction analogous to type I semiconductor heterojunctions.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Fasel, Roman |
Subjects: |
500 Science > 530 Physics 500 Science > 540 Chemistry |
ISSN: |
1998-0124 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Roman Fasel |
Date Deposited: |
07 Feb 2023 16:02 |
Last Modified: |
07 Feb 2023 23:27 |
Publisher DOI: |
10.1007/s12274-022-4410-7 |
BORIS DOI: |
10.48350/178473 |
URI: |
https://boris.unibe.ch/id/eprint/178473 |
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