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高速自动供电 PdSe₂/Si 2D-3D 类似PIN的光学探测器,具有基于PdSe的宽带响应₂ 量子岛结构

Shaopeng Chen¹, Shaoying Ke¹, Tian Ji¹

¹Key Laboratory of Light Field Manipulation and System Integration Applications in Fujian Province, School of Physics and Information Engineering, Minnan Normal University, Zhangzhou 363000, China.

ACS applied materials & interfaces

|August 5, 2024

概括

研究人员使用量子岛结构开发了一种新型的二化物 (PdSe2) 光探测器. 该设备通过采用独特的PIN类架构来提高载波动力学,表现出广泛的光谱吸收和增强的性能.

科学领域:

材料科学材料科学材料科学
凝聚物质物理学凝聚物质物理学
纳米技术纳米技术

背景情况:

二维 (2D) 二化 (PdSe2) 具有独特的不对称晶体结构和光电子特性.
PdSe2 (半导体与金属) 的厚度依赖性质对光电探测器应用提出了挑战.
优化PdSe2以形成异质连接和有效的光响应至关重要.

研究的目的:

为了准备具有量子岛结构的PdSe2 2D材料.
提出并制造一种具有PdSe2/n-Si/n+Si垂直PIN样结构的新型光探测器.
调查拟议的光电探测器的光电子特性和性能增强.

主要方法:

用一种简单的热辅助转换方法来准备量子岛结构的PdSe2.2.
制造一个垂直PIN类型的光探测器装置,集成PdSe2与n-Si/n+Si.
该设备的光谱吸收,整正比,响应率和3dB频率的特征.

主要成果:

准备好的PdSe2呈现出量子岛屿结构.
新型PdSe2/n-Si/n+Si类似PIN的光学探测器证明了从532到2200纳米的宽光谱吸收.
实现了10^6的高纠正比率和~25kHz的增强3dB频率.

结论:

量子岛结构PdSe2已经成功准备好.
拟议的PdSe2/n-Si/n+Si垂直PIN样结构显著提高了光探测器的性能.
n-Si层有效地集中电场,改善载体分离和收集,以获得更好的响应能力和速度.

关键词:

3dB的频率是3dB的频率.一个类似PIN的结构.在PdSe2中,PdSe2是什么?量子岛屿是一个量子岛屿.自动供电的光电探测器

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