# Ultranarrow Germanene Nanoribbons with Pentagonal Rings

https://mdr.nims.go.jp/datasets/7912a8de-645a-4714-89d0-432cd1566b4b

## File

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## Id

7912a8de-645a-4714-89d0-432cd1566b4b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-08-06T05:34:08.336761Z

## Updated at

2026-08-07T06:00:04.329457Z

## Published at

2026-08-07T07:28:08.383181Z

## Doi



## First published url

https://doi.org/10.1021/acs.nanolett.6c02715

## Date published

2026-08-05

## Recorded date published

2026-8-5

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Ultranarrow Germanene Nanoribbons with Pentagonal Rings
  title_type: original
  lang: en

## Description

- description: One-dimensional elemental nanostructures, exemplified by graphene nanoribbons,
    hold great potential for advanced nanoelectronics, which can be further expanded
    by composition of heavier group 14 elements. Although the synthesis of germanene
    nanoribbons (GeNRs) has been recently demonstrated through high-temperature Ge
    atom segregation onto Pt and Ag adlayers from stepped Ge(110) bulk crystals, atomic-scale
    control of their structures remains unexplored. Here, we present ultranarrow GeNRs
    composed exclusively of pentagonal rings via thermal treatment of germanium clusters
    onto Ag(111) at 300 K with high-resolution scanning tunneling microscopy. Field-effect
    resonant tunneling spectra supported by ab initio calculations reveal that the
    work function of GeNRs is moderately higher than that of pristine Ag(111), resulting
    in a directional interfacial charge modulation. Our findings suggest that the
    GeNR/Ag(111) system offers an atomically defined platform for studying metal contacts,
    work function engineering, resonant tunneling, and substrate-stabilized one-dimensional
    electronic states as well as mechanical properties.
  description_type: abstract
  lang: und

## Creator

- name: Kewei Sun
  role: author
  orcid: https://orcid.org/0000-0002-1835-243X
  organization: 国立研究開発法人　物質・材料研究機構
  department: マテリアル基盤研究センター
- name: Orlando J. Silveira
  role: author
  orcid: https://orcid.org/0000-0002-0403-9485
  organization: Aalto University
  department: Department of Applied Physics
- name: Adam S. Foster
  role: author
  orcid: https://orcid.org/0000-0001-5371-5905
  organization: Aalto University
  department: Department of Applied Chemistry
- name: Shigeki Kawai
  role: author
  orcid: https://orcid.org/0000-0003-2128-0120
  organization: 国立研究開発法人　物質・材料研究機構
  department: マテリアル基盤研究センター

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: Germanene nanoribbons
  schema: not_defined
- subject: Pentagonal germanium nanostructures
  schema: not_defined
- subject: Scanning tunneling microscopy
  schema: not_defined
- subject: GeNR/Ag(111) system
  schema: not_defined
- subject: Field-effect resonant tunneling spectra
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nano Letters
  issn: '15306984'
  volume: '26'
  issue: '30'
  start_page: 9976
  end_page: 9981

## Conference



## Related item



## Funding

- identifier: 25H00422
  funder_name: JSPS
- identifier: 25K17918
  funder_name: JSPS
- identifier: '346824'
  funder_name: Academy of Finland

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

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  filename: acs.nanolett.6c02715.pdf
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## Thumbnail

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filename: nl6c02715_si_001.pdf