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相关概念视频

Switching of BJT01:22

Switching of BJT

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Switching behavior in Bipolar Junction Transistors (BJTs) is a fundamental aspect utilized in various electronic circuits, particularly for digital logic applications like switches and amplifiers. In a typical switching circuit, a BJT alternates between cut-off and saturation modes, corresponding to the "off" and "on" states, respectively, thus behaving like an ideal switch.
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are...
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Channel Rhodopsins01:11

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Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
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Bipolar Junction Transistor01:22

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Bipolar Junction Transistors (BJTs) are essential elements in electronic circuits, playing a crucial role in the functionality of amplifiers, memories, and microprocessors. These transistors can be designed as NPN or PNP based on their doping patterns. They consist of three layers: the emitter, base, and collector. The configuration of these layers and their respective doping levels—with N-type or P-type impurities—define the transistor's type and its operational...
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相关实验视频

Updated: Apr 30, 2026

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
10:33

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation

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有电可开关的奇拉发光晶体管.

Y J Zhang1, T Oka2, R Suzuki2

  • 1Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, University of Tokyo, Tokyo 113-8656, Japan. yzhang@mp.t.u-tokyo.ac.jp iwasa@ap.t.u-tokyo.ac.jp.

Science (New York, N.Y.)
|May 3, 2014
PubMed
概括
此摘要是机器生成的。

研究人员使用化 (WSe2) 晶体管开发了一种电可开关的光源. 这种设备利用山谷的自由度来循环偏光发射,为山谷光电电子铺平了道路.

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Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes
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An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
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Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
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科学领域:

  • 凝聚物质物理学 凝聚物质物理学
  • 材料科学 材料科学 材料科学
  • 光电学是指光电子产品.

背景情况:

  • 过渡金属二甲基化物,如二化 (WSe2),由于其带结构和自由度谷,具有独特的光电子特性.
  • 虽然存在光学方法来产生和检测谷极化,但实现设备的活跃谷极化功能仍然是一个挑战.

研究的目的:

  • 报告一个可电切换的,循环偏光光源,利用 WSe2.2 中的谷自由度.
  • 为了展示一个新的方法谷-光电子设备应用程序.

主要方法:

  • 基于WSe2的双极晶体管的制造.
  • 在晶体管通道内形成静电定义的p-i-n连接点.
  • 测量循环极化的电光发射.

主要成果:

  • WSe2晶体管成功地发射了循环极化电解发光.
  • 观察到的现象归因于电子孔重叠的控制在平面内的电场.
  • 该装置显示了极化光辐射的电转换.

结论:

  • 该研究提出了一种可行的方法,用于实际应用WSe2中谷自由度的利用.
  • 这项工作为开发先进的山谷光电子技术和设备开辟了可能性.