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Updated: May 9, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
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Periodic nanowire array at the crystal interface.

Atsutomo Nakamura1, Teruyasu Mizoguchi, Katsuyuki Matsunaga

  • 1Department of Materials Science and Engineering, Nagoya University, Nagoya, 464-8603 Japan. nakamura@numse.nagoya-u.ac.jp

ACS Nano
|July 24, 2013
PubMed
Summary
This summary is machine-generated.

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Researchers developed a new method to create ordered nanowire arrays using crystal dislocations. This technique precisely controls nanowire spacing for applications in electronics and optics.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Solid-State Physics

Background:

  • Dislocations in crystalline materials possess unique properties like dangling bonds and strain fields.
  • These properties attract solute atoms, forming Cottrell atmospheres, which have been challenging to control for periodic structures.
  • Previous methods for fabricating periodic nanowire arrays using dislocations lacked precise control over configuration, spacing, and density.

Purpose of the Study:

  • To present a novel method for fabricating ordered, electrically conductive nanowire arrays.
  • To demonstrate precise control over nanowire periodicity and density using periodic dislocations at crystal interfaces.
  • To explore the potential applications of these controlled nanowire arrays in various devices.

Main Methods:

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Last Updated: May 9, 2026

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates
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Published on: June 18, 2013

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Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

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  • Utilizing periodic dislocations at crystal interfaces as a template for nanowire fabrication.
  • Selectively doping foreign atoms along these dislocations to form nanowires.
  • Employing scanning probe microscopy to confirm electrical conductivity and characterize nanowire arrays.
  • Controlling nanowire periodicity by selecting specific crystal orientations and/or crystal planes at the interface.

Main Results:

  • Successfully fabricated ordered arrays of titanium nanowires within an insulating aluminum oxide matrix.
  • Achieved precise control over nanowire periodicity, demonstrating intervals of 13 nm and 90 nm.
  • Confirmed the electrical conductivity of the fabricated nanowires.
  • Established a direct correlation between crystal interface properties and nanowire array periodicity.

Conclusions:

  • The developed method enables the fabrication of periodic nanowire arrays with highly controlled density and spacing.
  • This technique offers a simple and widely applicable approach for creating ordered nanostructures.
  • The controlled nanowire arrays hold significant potential for advancements in electrical, magnetic, and optical devices.