一个超敏感的和宽谱的MoS2光探测器与外部响应使用周围的同质结
Xiaoyan Liu1,2,3, Jiaqi Zhu1, Yufeng Shan1
1School of Physics and Optoelectronic Engineering, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, 310024, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 16, 2024
概括
设计了一种新二硫化物 (MoS2) 光探测器,用于增强光电子应用. 该设备在广泛的光谱中实现了高灵敏度,包括可见光和短波红外光.
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:
- 二维半导体过渡金属二甲基二二烯化物对光电子非常重要.
- 现有的MoS2光探测器具有有限的光谱响应和灵敏度,主要在可见光中.
- 需要具有高灵敏度的宽带光电探测器.
研究的目的:
- 设计一个具有更好的光谱响应和灵敏度的MoS2光探测器.
- 在MoS2中使用p-n同位连接创建一个宽带光探测器.
- 展示下一代成像系统和光子芯片的潜力.
主要方法:
- 一个MoS2光探测器的制造与周围的同质连接.
- 在n型MoS2上局部化p型血兴奋剂.
- 维护用于载体运输的高流动性底层通道.
主要成果:
- 在638 nm.取得了高光响应性 (6.94 × 104 A W-1) 和特定检测性 (1.21 × 1014 斯) 在638 nm.
- 证明了≈107的最佳灯光打开/关闭比.
- 由于兴奋剂,对短波红外 (34 A W-1 ,5.92 × 10 Jones在1550 nm) 呈现的宽带响应.
结论:
- 设计的p-n同联MoS2光探测器显著提高了内在检测性能.
- 兴奋剂可实现外部宽带响应,将检测范围扩展到短波红外频谱.
- 该设备显示多功能成像和高性能光子集成电路的承诺.
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