使用多个合协同效应的高性能和自动供电可见光光探测器
José P B Silva1,2, Eliana M F Vieira3,4, Katarzyna Gwozdz5
1Physics Center of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal. josesilva@fisica.uminho.pt.
Materials horizons
|November 27, 2023
概括
这项研究通过结合热电,光伏和等离子效应引入了一种新型的自动供电光探测器. 这种集成显著提高了可见光谱中的性能,提供了卓越的响应和检测能力.
科学领域:
- 材料科学 材料科学 材料科学
- 光电学是指光电子产品.
- 纳米技术 纳米技术
背景情况:
- 自动供电的光电探测器对于低功耗电子应用至关重要.
- 提高光电探测器的性能,特别是在可见光谱中,仍然是一个关键的挑战.
- 结合多种物理效应为下一代光电子设备提供了一个有前途的途径.
研究的目的:
- 展示一种用于显著提高可见区域自动供电光探测器性能的新方法.
- 为了研究火电,光伏和等离子体现象在单一设备中的协同效应.
- 制造和描述一个三层异质连接光探测器,其中包含银纳米粒子.
主要方法:
- 使用n-Si/p-SnO/n-ZnO制造一个三层异质连接光探测器.
- 在SnO/ZnO接口中加入银 (Ag) 纳米粒子 (NP),以利用等离子体效应.
- 在切碎的650nm激光激发下对设备的光响应的描述.
- 优化Ag NP的大小和形状,以最大限度地提高性能.
主要成果:
- 采用球状AgNP (~70nm直径) 的光电探测器显示了最显著的性能提升.
- 优化的Al/Si/SnO/Ag NPs/ZnO/ITO装置实现了210.2 mA W-1的响应能力,5.47 × 109 斯的检测能力和15.0 × 104.0 的灵敏度.
- 该设备表现出快速响应时间,上升和下降时间分别为2.3微秒和51.3微秒.
- 性能指标优于现有的基于ZnO的火光光子光探测器.
结论:
- 热电,光伏和等离子效应的结合是高性能自动供电光探测器的可行和有效策略.
- 开发的光电探测器展示了可见光检测的最先进性能.
- 这项工作为利用协同物理效应的先进光电子应用铺平了道路.
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