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相关概念视频

MOSFET: Enhancement Mode01:22

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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Photochemical Electrocyclic Reactions: Stereochemistry01:26

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The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
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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.
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相关实验视频

Updated: Jan 11, 2026

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
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积极的反 有机上升转换设备

Raju Lampande1, Jon-Paul DesOrmeaux2, Adrian Pizano1

  • 1Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan, 48109, USA.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)
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PubMed
概括
此摘要是机器生成的。

新的混合光电子上升转换设备增强了近红外光检测. 这些有机/设备实现了显著的光子对光子增益,为先进的成像和计算应用铺平了道路.

关键词:
这就是OLED OLED.异质连接光二极管的光二极管.混合动力 混合动力 混合动力 混合动力积极的反是积极的反.上方转换器上方转换器

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科学领域:

  • 光电学是指光电子产品.
  • 材料科学 材料科学 材料科学
  • 光子学 是一个光子学.

背景情况:

  • 积极反向上转换装置提供光电子比分稳定性和高光子对光子增益.
  • 应用包括夜视和神经形态图像分类.

研究的目的:

  • 引入一种新的混合设备架构,将有机发光二极管 (OLED) 与有机/ (Si) 异质连接光二极管集成在一起.
  • 研究这些设备的近红外 (NIR) 光探测和升级功能的性能.

主要方法:

  • 混合装置的制造,该装置结合了双联OLED和有机/Si异质连接光二极管.
  • 描述设备对NIR光线的反应,直至1.1微米.
  • 分析增益,响应速度和交叉通话效应.

主要成果:

  • 混合设备对近红外光线的反应大约为1.1微米.
  • 在输入光强度低于1μW cm-2.2时,达到9x的峰值光子对光子向上转换增益.
  • 尽量减少光二极管电容对于最大化响应速度至关重要.
  • 像素化设备中的电交叉声可以导致级联效应.

结论:

  • 开发的混合架构代表了与Si微电子相容的光电子上转换器的重大进步.
  • 克服电话交叉对实际的像素化设备来说至关重要.
  • 未来的工作可以通过使用替代无机半导体平台,如 (Ge) 或甲 (InGaAs),将响应能力扩展到进一步的NIR.