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相关概念视频

Biasing of Metal-Semiconductor Junctions01:27

Biasing of Metal-Semiconductor Junctions

528
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...
528
Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

880
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
880
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

757
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...
757
Biasing of P-N Junction01:16

Biasing of P-N Junction

1.7K
The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...
1.7K
Types of Semiconductors01:20

Types of Semiconductors

1.3K
Intrinsic semiconductors are highly pure materials with no impurities. At absolute zero, these semiconductors behave as perfect insulators because all the valence electrons are bound, and the conduction band is empty, disallowing electrical conduction. The Fermi level is a concept used to describe the probability of occupancy of energy levels by electrons at thermal equilibrium. In intrinsic semiconductors, the Fermi level is positioned at the midpoint of the energy gap at absolute zero. When...
1.3K
Non-ohmic Devices00:51

Non-ohmic Devices

1.5K
In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
1.5K

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相关实验视频

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Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing
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在InOx/AlOx异构结构中热温度组合的影响,用于高性能和稳定的解决方案处理的无连接晶体管.

Jinhong Park1, Dohyeon Gil1, Se Jin Park1

  • 1School of Electronic and Electrical Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, Republic of Korea.

Materials (Basel, Switzerland)
|November 27, 2025
PubMed
概括

在无连接晶体管中的氧化和氧化层的高温回火显著提高了设备性能和偏差稳定性. 这个过程是可靠,高性能氧化物电子的关键.

关键词:
没有连接的薄膜晶体管.金属氧化物 - 金属氧化物积极偏见的不稳定性是不稳定的.热化热化 热化

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电气工程 电气工程
  • 半导体物理 半导体物理

背景情况:

  • 无连接薄膜晶体管 (JL TFT) 提供了低成本,大面积电子产品的潜力.
  • 提高移动性和偏差稳定性对于JL TFT的进步至关重要.

研究的目的:

  • 为了研究火温度对氧化物 (InOx) 和氧化物 (AlOx) 层在异构JL TFT中的影响.
  • 通过可控回火优化InOx/AlOx JL TFT 的性能和可靠性.

主要方法:

  • 使用溶液沉积和光模式制造InOx/AlOx异构JL TFTs的制造.
  • 在250°C和400°C时,InOx和AlOx层的独立回火.
  • 电气特性,以评估设备性能和偏差稳定性.

主要成果:

  • 较高的回火温度 (400°C) 导致了InOx结晶和密集.
  • 在AlOx中的降低金属基含量在400°C时化.
  • 在400°C时炼的JL TFT显示出优异的电性能 (可移动性:1.57 cm2 V-1 s-1) 和出色的偏移稳定性 (Vth转移:1.70 V).

结论:

  • 同时对通道和封闭层进行高温回火对于减少陷辅助散射至关重要.
  • 优化的回火稳定了静电,从而提高了JL TFT中的偏差稳定性.
  • 这项研究为开发高性能,偏差稳定的氧化物电子产品提供了实际指导方针.