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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.
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Related Experiment Video

Updated: Feb 20, 2026

Assembly and Characterization of Biomolecular Memristors Consisting of Ion Channel-doped Lipid Membranes
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Atomically Thin Femtojoule Memristive Device.

Huan Zhao1, Zhipeng Dong2, He Tian1

  • 1Ming Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, CA, 90089, USA.

Advanced Materials (Deerfield Beach, Fla.)
|October 26, 2017
PubMed
Summary
This summary is machine-generated.

Researchers developed sub-nanometer conductive filaments in memristive devices by using atomically thin boron nitride. This breakthrough enables ultralow power consumption, paving the way for femtojoule electronic computation.

Keywords:
2D materialsfemtojouleshexagonal boron nitride (h-BN)memorymemristorsultra-low power

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Electrical Engineering

Background:

  • Conductive filament dimensions critically impact memristive device performance.
  • Scaling down filament thickness is key to reducing operating current, voltage, and energy consumption.
  • Previous limitations in filament thickness (above a few nanometers) hindered further optimization.

Purpose of the Study:

  • To investigate conductive filament formation in sub-nanometer thick materials.
  • To explore the impact of atomic-scale filament confinement on memristor switching characteristics.
  • To theoretically analyze filament morphology in aggressively scaled memristive devices.

Main Methods:

  • Fabrication of memristive devices utilizing atomically thin two-dimensional boron nitride.
  • Controlled oxidation of the boron nitride layer to form sub-nanometer conductive filaments.
  • Experimental characterization of device performance and theoretical modeling of filament morphology.

Main Results:

  • Achieved sub-nanometer filamentary switching in memristive devices.
  • Demonstrated sub-picoampere (sub-pA) operating currents and femtojoule (fJ) per bit energy consumption.
  • Observed distinct switching characteristics at the atomic scale due to altered atomic kinetics.

Conclusions:

  • Sub-nanometer filament formation in memristors is feasible using atomically thin materials like boron nitride.
  • Aggressively scaled memristive devices offer ultralow energy consumption for advanced computing.
  • These devices hold promise for femtojoule and sub-femtojoule electronic computation and ultralow power applications.