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Related Concept Videos

MOSFET01:16

MOSFET

381
The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) plays a pivotal role in modern electronics thanks to its versatility and efficiency in controlling electrical currents. This device, also known as IGFET, MISFET, and MOSFET, has three main terminals: the Source, Drain, and Gate. MOSFETs are classified into n-channel or p-channel types based on the doping characteristics of their substrate and the source or drain regions.
In an n-MOSFET, the structure includes n-type source and drain...
381
MOS Capacitor01:25

MOS Capacitor

626
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...
626
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

242
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
242
MOSFET: Depletion Mode01:20

MOSFET: Depletion Mode

282
Depletion-mode MOSFETs represent a unique subset of MOSFET technology, functioning fundamentally differently from their enhancement-mode counterparts. Unlike enhancement MOSFETs, which require a positive gate-source voltage (Vgs) to turn on, depletion-mode MOSFETs are inherently conductive and "normally on" devices.
The primary characteristic of depletion-mode MOSFETs is their ability to conduct current between the drain and source terminals without gate bias. This inherent conductivity...
282
Characteristics of MOSFET01:17

Characteristics of MOSFET

296
Metal-oxide-semiconductor field-effect Transistors, or MOSFETs, play a critical role in electronic circuits. They are primarily utilized for amplifying and switching signals.
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable...
296
MOSFET Amplifiers01:17

MOSFET Amplifiers

130
The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
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Ultralow Powered 2D MoS2-Based Memristive Crossbar Array for Synaptic Applications.

Saurabh Yadav1, Chandrabhan Patel2, Manoj Kumar Rajbhar3

  • 1Centre for Advanced Electronics (CAE), Indian Institute of Technology Indore, Indore, Madhya Pradesh 453552, India.

ACS Applied Materials & Interfaces
|April 29, 2025
PubMed
Summary
This summary is machine-generated.

This study presents a 2D molybdenum disulfide (MoS2) memristive crossbar array (MCA) for advanced electronics. The MoS2-based MCA achieves high device yield and stability, enabling efficient information storage and neuromorphic computing applications.

Keywords:
MoS2artificial synapsescrossbar arraylow powerreproducibility

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Solid-State Electronics

Background:

  • Two-dimensional (2D) materials are crucial for beyond-CMOS electronics, particularly for memristive devices used in information storage and neuromorphic computing.
  • Challenges like low device yield and variability in device-to-device (D2D) and cycle-to-cycle (C2C) performance hinder the development of high-density memristive devices.
  • 2D materials offer potential for low-power electronic applications due to their unique properties.

Purpose of the Study:

  • To demonstrate a memristive crossbar array (MCA) utilizing multilayer 2D molybdenum disulfide (MoS2) as the resistive switching layer.
  • To address challenges of device yield, D2D, and C2C variability in memristive devices.
  • To showcase the potential of 2D MoS2 for high-density, energy-efficient, and stable memristive applications.

Main Methods:

  • Fabrication of a (10 × 10) memristive crossbar array (MCA) using multilayer 2D MoS2 as the resistive switching layer.
  • Controlled growth process to ensure uniformity of MoS2 layers across the array.
  • Characterization of device performance, including switching voltages, endurance, retention, power consumption, and energy efficiency.

Main Results:

  • Achieved a high device yield of 94% with minimal variability in switching voltages (VSET: 4.16%, VRESET: 3.60%).
  • Demonstrated excellent endurance (∼24,000 cycles) and retention (1.6 × 106 s).
  • Devices exhibited low switching voltages and fast switching speeds, consuming only 53 pW power and 53 aJ energy, and achieved 97.79% accuracy in MNIST recognition simulation.

Conclusions:

  • The 2D MoS2-based MCA offers a promising solution for high-density, low-variability, and energy-efficient memristive devices.
  • The controlled growth process is key to achieving uniform MoS2 layers and stable device performance.
  • These findings pave the way for practical applications in information storage and neuromorphic computing.