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相关概念视频

MOS Capacitor01:25

MOS Capacitor

830
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...
830
Biasing of FET01:22

Biasing of FET

307
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
307
Characteristics of MOSFET01:17

Characteristics of MOSFET

416
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...
416
MOSFET: Depletion Mode01:20

MOSFET: Depletion Mode

389
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...
389
Field Effect Transistor01:29

Field Effect Transistor

459
Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
459
Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

279
Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
279

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相关实验视频

Updated: Jul 16, 2025

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
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在全二维门负电容晶体管中消除铁电歇斯底里.

Hui Quan1,2, Dehuan Meng2, Xuezhou Ma2

  • 1Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, China.

ACS applied materials & interfaces
|September 18, 2023
PubMed
概括

使用MoS2和CuInP2S6的负电容场效应晶体管 (NC FET) 实现了低于60mV/十年的急剧下值波动 (SS). 插入h-BN层提高了性能,减少了hysteresis,并增加了透导.

关键词:
在CuInP2S6S6中使用.在MoS2中,MoS2就是MoS2.在NC FET中,h-BNBN 在线阅读这是歇斯底里症.在低于门值的波动下,

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In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx
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In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx

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Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
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科学领域:

  • 材料科学 材料科学 材料科学
  • 半导体物理 半导体物理
  • 设备工程 设备工程

背景情况:

  • 博尔兹曼分布在室温下限制场效应晶体管 (FET) 的子值波动 (SS) 在60mV/十年以下,阻碍了较低的操作电压和功耗.
  • 负电容FET (NC FET) 提供了一个潜在的解决方案,利用铁电材料来放大门电压,旨在克服SS极限.

研究的目的:

  • 为了研究基于CuInP2S6铁电层的基于MoS2的NC FET的性能.
  • 探索插入六角化 (h-BN) 介层对设备性能,特别是SS和hysteresis的影响.
  • 分析电容匹配NC FET中电压放大和传导能力增强的潜在机制.

主要方法:

  • 使用CuInP2S6铁电层制造MoS2NC FET.
  • 集成不同厚度的h相化 (h-BN) 间层.
  • 电气表征包括开/关比,SS,hysteresis和传导度测量.

主要成果:

  • 使用CuInP2S6的MoS2NC FET表现出高开/关比 (10^8) 和非常的SS (6 mV/十年) 超过4个数量级,尽管具有显著的歇斯底里 (>500 mV).
  • 插入合适的h-BN层改善了介电层和铁电层之间的电容匹配,将歇斯底里减至5mV,并实现62mV/十年的SS.
  • 在容量匹配条件下,无歇斯底里的NC FETs没有显示预测的坡行为,但作为有效的传导增强器,实现了超过20倍的放大.

结论:

  • 容量匹配对于优化NC FET性能至关重要,可以减少歇斯底里和改善切换行为.
  • 虽然在匹配条件下的无hysteresis运行不会产生超的SS,但它有效地提高了传导率,为节能电子提供了可行的途径.
  • 这项工作展示了一种实际的方法,通过铁电负电容效应来提高超越博尔兹曼极限的晶体管性能.