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相关概念视频

Schottky Barrier Diode01:27

Schottky Barrier Diode

Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...

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相关实验视频

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Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
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Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

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使用双面板结构的Ge-on-Si单光子雪崩二极管.

Maurice Wanitzek, Jörg Schulze, Michael Oehme

    Optics letters
    |November 15, 2024
    PubMed
    概括

    对于对单光子雪崩二极管的新型双层结构显著提高了性能. 这种设计减少了暗电流和暗计数率,使光子检测应用程序的噪声降低和效率提高.

    科学领域:

    • 光电学是指光电子产品.
    • 半导体设备物理学的物理

    背景情况:

    • 对 (Ge-on-Si) 技术对于集成光子学至关重要.
    • 单光子雪崩二极管 (SPAD) 对于量子信息和传感至关重要.
    • 传统的SPAD设计面临着黑暗电流和边缘故障的挑战.

    研究的目的:

    • 引入和实验验证一种新的双面结构,用于Ge-on-Si SPADs.
    • 为了证明在黑暗电流,黑暗计数速率和中性能改善.
    • 为了实现高单光子检测效率与低噪音.

    主要方法:

    • 使用双面板结构制造Ge-on-Si SPAD.
    • 在低温 (110 K) 时在线性和盖格尔模式下进行电气表征.
    • 测量暗电流,暗计数速率,单光子检测效率和动.

    主要成果:

    • 双倍的梅萨结构抑制了电场在梅萨边缘拥挤的情况.
    • 在低温下,黑暗电流在低温下减少了260倍以上,而与单一的 mesa 相比.
    • 在110K时,暗数计数率减少了100倍.
    • 实现了953 kHz的暗计数率,7.3%的检测效率和81 ps的动.

    更多相关视频

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    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
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    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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    结论:

    • 双面板设计为Ge-on-Si SPADs提供了显著的优势.
    • 这种结构使得暗光数量大大减少,并提高了运行稳定性.
    • 证明的性能指标为Ge-on-Si SPADs建立了一个新的基准.