自动供电和可重新配置的双终端MoS2摄影探测器用于图像识别
Chengjie Zhou1, Qingliang Liu2, Xiao Fu3
1College of Electronics and Information, Qingdao University, Qingdao 266071, China.
Nano letters
|February 24, 2025
概括
本研究展示了使用电压脉冲控制内部电场的自动供电,可重新配置的MoS2设备. 该技术使双向光电流成为可能,并为先进的光电子应用铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 固态物理 固态物理
背景情况:
- 二维 (2D) 半导体由于其薄度和集成能力,为自动供电设备提供了潜力.
- 控制二维材料中的极性和复杂的异构结构仍然是实际应用的重大挑战.
研究的目的:
- 展示一种新的金属-半导体-金属 (MSM) 设备结构,用于使用MoS2.2进行自动供电和可重新配置的功能.
- 通过调节硫空位度来实现可调和可逆的光电流切换.
主要方法:
- 制造一个基于MoS2的双终端MSM设备.
- 应用于电压脉冲调节硫空置度和内部电场.
- 光电流响应,响应性和设备速度的表征.
主要成果:
- 证明了可逆,双向自动供电的光电流从负向正切换.
- 实现了224μs的快速响应速度和280mA/W的最大响应能力.
- 使用CNN实现了稳定的响应度调制,用于图像处理和对象检测.
结论:
- 开发的MoS2设备为自动供电,可重新配置的光电子提供了一个简单的方法.
- 该方法为下一代集成设备提供了一条途径,具有可调节的光电子特性.
相关概念视频
MOS Capacitor
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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.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
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MOSFET
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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...
In an n-MOSFET, the structure includes n-type source and drain...
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MOSFET: Enhancement Mode
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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...
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Characteristics of MOSFET
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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...
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...
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MOSFET: Depletion Mode
303
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.
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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...
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MOSFET Amplifiers
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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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