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Related Experiment Video

Updated: May 15, 2026

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

Published on: June 18, 2013

Self-aligned nanotube-nanowire phase change memory.

Feng Xiong1, Myung-Ho Bae, Yuan Dai

  • 1Micro and Nanotechnology Lab, University of Illinois, Urbana-Champaign, Illinois 61801, USA.

Nano Letters
|December 25, 2012
PubMed
Summary
This summary is machine-generated.

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Researchers developed self-aligned phase change material (PCM) nanowire memory devices with carbon nanotube (CNT) electrodes. These nanoelectronic devices achieve ultimate scaling limits with ultralow power consumption and high performance.

Area of Science:

  • Nanoelectronics and Materials Science

Background:

  • Nanoelectronic devices face fundamental scaling limits, particularly concerning energy efficiency and reliability at nanoscale dimensions.
  • Traditional charge-based electronics suffer from leakage issues at these small scales.
  • Phase change materials (PCMs) offer a scalable alternative for memory devices, storing data via crystalline or amorphous states.

Purpose of the Study:

  • To introduce a novel method for self-aligning phase change material (PCM) nanowires with individual carbon nanotube (CNT) electrodes.
  • To explore the potential of these self-aligned devices in approaching the ultimate scaling limits of PCM technology.

Main Methods:

  • Development of a novel nanofabrication technique for precise self-alignment of PCM nanowires and CNT electrodes.
  • Fabrication of highly scaled and spatially confined memory devices utilizing this self-alignment approach.

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

Published on: December 7, 2017

Fabrication of Low Temperature Carbon Nanotube Vertical Interconnects Compatible with Semiconductor Technology
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Related Experiment Videos

Last Updated: May 15, 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

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

Fabrication of Low Temperature Carbon Nanotube Vertical Interconnects Compatible with Semiconductor Technology
09:20

Fabrication of Low Temperature Carbon Nanotube Vertical Interconnects Compatible with Semiconductor Technology

Published on: December 7, 2015

Main Results:

  • Achieved ultralow programming currents: approximately 0.1 μA for set and 1.6 μA for reset operations.
  • Demonstrated outstanding on/off ratios of approximately 10^3.
  • Exhibited improved endurance and stability in few-nanometer bit dimensions.

Conclusions:

  • The novel self-alignment approach enables the creation of highly scaled PCM memory devices approaching ultimate limits.
  • These devices offer significant advantages in terms of low power consumption and high performance.
  • The fabrication method is versatile and can be applied to confining and probing other nanoscale and molecular devices with CNT electrodes.