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Related Concept Videos

MOS Capacitor01:25

MOS Capacitor

779
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
779

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Low-Temperature Solution-Based Molybdenum Oxide Memristors.

Raquel Azevedo Martins1, Emanuel Carlos1, Asal Kiazadeh1

  • 1CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA, 2829-516 Caparica, Portugal.

ACS Applied Engineering Materials
|February 29, 2024
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Summary
This summary is machine-generated.

Solution-based molybdenum trioxide memristors offer low-cost fabrication. Annealing at 250°C yields stable, nonvolatile resistive switching devices with high reproducibility, suitable for scalable applications.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Electronics

Background:

  • Solution-based fabrication offers cost-effective and scalable manufacturing for electronic devices.
  • Memristors are crucial for next-generation computing and memory applications.
  • Molybdenum trioxide (MoO3) is a promising material for resistive switching devices.

Purpose of the Study:

  • To fabricate and characterize solution-based MoO3 memristors.
  • To investigate the effect of annealing temperature on memristor performance.
  • To evaluate the stability and retention characteristics of the fabricated devices.

Main Methods:

  • Developed a water-based MoO3 ink for simplified fabrication.
  • Annealed MoO3 films at temperatures ranging from 200 to 400 °C.
  • Performed material analysis (oxidation state, structure) and electrical characterization (resistive switching, endurance, retention).

Main Results:

  • Identified Mo6+ oxidation state and amorphous structure in films annealed up to 250 °C.
  • Observed bipolar resistive switching behavior consistent with the valence change mechanism (VCM).
  • Demonstrated stable endurance and nonvolatile behavior with retention up to 10^5 s at 250 °C annealing.

Conclusions:

  • Solution-processed MoO3 memristors exhibit promising performance for electronic applications.
  • Optimal annealing at 250 °C provides stable and reproducible resistive switching.
  • These findings highlight the potential for scalable and low-cost memristor fabrication.