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Updated: May 8, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
08:07

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Published on: June 18, 2013

Electronically stabilized nanowire growth.

Tijs F Mocking1, Pantelis Bampoulis, Nuri Oncel

  • 1Physics of Interfaces and Nanomaterials, MESA+ Institute for Nanotechnology, University of Twente, PO Box 217, Enschede 7500 AE, The Netherlands.

Nature Communications
|August 29, 2013
PubMed
Summary
This summary is machine-generated.

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Quantum size effects dictate preferred lengths for self-assembled iridium nanowires. Electron standing waves, caused by scattering at wire ends, lead to lengths that are integer multiples of 4.8 nm.

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Surface Science

Background:

  • One-dimensional metallic nanowires exhibit unique properties due to electron-electron interactions.
  • Quantum confinement effects significantly influence electron behavior in low-dimensional systems.

Purpose of the Study:

  • To directly visualize quantum size effects in self-assembled metallic iridium nanowires.
  • To understand the origin of preferred nanowire lengths on a germanium surface.

Main Methods:

  • Growth of self-assembled iridium nanowires on a germanium (001) surface.
  • Direct visualization using scanning tunneling microscopy.
  • Spatially resolved scanning tunneling spectroscopy.

Main Results:

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Seedless Growth of Bismuth Nanowire Array via Vacuum Thermal Evaporation
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Seedless Growth of Bismuth Nanowire Array via Vacuum Thermal Evaporation

Published on: December 21, 2015

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices
09:14

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices

Published on: December 7, 2017

Related Experiment Videos

Last Updated: May 8, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
08:07

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Published on: June 18, 2013

Seedless Growth of Bismuth Nanowire Array via Vacuum Thermal Evaporation
08:58

Seedless Growth of Bismuth Nanowire Array via Vacuum Thermal Evaporation

Published on: December 21, 2015

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices
09:14

Flow-assisted Dielectrophoresis: A Low Cost Method for the Fabrication of High Performance Solution-processable Nanowire Devices

Published on: December 7, 2017

  • Observed a strong preference for nanowire lengths that are integer multiples of 4.8 nm.
  • Detected electron standing wave patterns within the nanowires.
  • Correlated standing waves to scattering of conduction electrons at nanowire ends.

Conclusions:

  • Quantum size effects are responsible for the quantized lengths of iridium nanowires.
  • Electron scattering at the ends of nanowires creates standing waves, influencing growth.
  • This provides direct evidence of quantum phenomena governing self-assembled nanostructures.