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在批量光伏效应装置中最大限度地收集光电流的几何配置

Huiying Chen, Yingshuang Zheng, Chunqi Jin

|December 24, 2024

概括

在石墨烯超表面光探测器中优化纳米天线阵列配置可以增强零偏差光电流收集. 一个5x5V形的纳米天线阵列将响应能力提高到21.6mA/W,克服载波运输损失.

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
纳米技术纳米技术

背景情况:

大量光伏效应 (BPVE) 和人工变体使得在非中心对称系统中能够在没有外部偏差的情况下产生光电流.
芯片上的超表面光探测器正在进步,但局部光电流收集效率受到纳米天线接触器非均的石墨烯流场的限制,导致载体运输损失.

研究的目的:

研究零偏差光电子超表面光探测器中局部光电流采集的调节.
确定纳米天线阵列配置对光电流效率的影响.

主要方法:

使用基于石墨烯的多层光探测器与V形纳米天线集成.
采用基于肖特基-拉莫定理的光电流映射和分析.
多种纳米天线阵列配置,以评估它们对设备性能的影响.

主要成果:

一个5x5纳米天线阵列配置显著提高了设备响应能力,在零偏差下达到21.6mA/W.
在优化的阵列配置中记录了相当大的129 nA光电流.
证明由纳米天线接触引起的不均流场阻碍了本地载波运输.

结论:

纳米天线阵列配置是优化零偏差的超表面光探测器中的光电流收集效率的关键因素.
5x5 V 形纳米天线阵列配置有效地减轻载波运输损失,从而提高了设备性能.
了解和控制流场对于推进高效,零偏差光电子设备至关重要.

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