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Oxygenated amorphous carbon for resistive memory applications.

Claudia A Santini¹, Abu Sebastian¹, Chiara Marchiori¹

¹IBM Research-Zurich, Säumerstrasse 4, 8803 Rüschlikon, Switzerland.

Nature Communications

|October 24, 2015

Summary

This summary is machine-generated.

Researchers developed oxygenated amorphous carbon (a-COx) for advanced electronics. This novel material offers a simple fabrication process for high-performance non-volatile memory devices, overcoming limitations of current carbon-based technologies.

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Area of Science:

Materials Science
Nanotechnology
Electronics Engineering

Background:

Silicon-based electronics face limitations in speed, size, and cost.
Carbon-based electronics offer potential advantages but face fabrication and performance challenges.
Existing carbon memory devices suffer from complex manufacturing or suboptimal performance.

Purpose of the Study:

To develop a novel carbon-based material for high-performance memory devices.
To overcome the limitations of current carbon memory technologies.
To investigate the potential of oxygenated amorphous carbon (a-COx) in electronics.

Main Methods:

Fabrication of oxygenated amorphous carbon (a-COx) using physical vapor deposition.
Integration of a-COx into non-volatile resistive memory devices.
Characterization of memory device performance, including switching times and endurance.
Analysis of device states (pristine, SET, RESET) to elucidate the switching mechanism.

Main Results:

a-COx exhibits properties similar to graphite oxide.
Simple fabrication ensures reproducibility and tunable properties.
Memory devices demonstrate outstanding non-volatile resistive switching performance.
Achieved switching times of ~10 ns and cycling endurance >10^4 cycles.
Identified an electrochemical redox reaction of carbon as the switching mechanism.

Conclusions:

Oxygenated amorphous carbon (a-COx) presents a viable material for advanced memory devices.
The simple fabrication and excellent performance of a-COx address key challenges in carbon electronics.
a-COx-based memory devices show significant promise for future non-volatile memory technology.
This work paves the way for the broader adoption of carbon-based electronics.