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具有高载体移动性和极化灵敏性的GaN/Sc₂CCl₂异质连接的自动供电光探测器

Guoqing Zhang¹, Zhen Cui^1,2, Aming Song³

¹School of Automation and Information Engineering, Xi'an University of Technology, Xi'an, 710048, P. R. China.

Physical chemistry chemical physics : PCCP

|February 10, 2025

概括

这项研究探讨了GaN/Sc2CCl2异质连接,揭示了其作为稳定,窄带间隙半导体的潜力. 它在高性能光电探测器中显示出有前途的应用,这是由于增强的光吸收和载体移动性.

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
半导体物理半导体物理

背景情况:

异质连接对于先进的电子和光电子设备至关重要.
化 (GaN) 和Sc2CCl2是新型异构结构的有希望的材料.
了解异质结的特性是开发新技术的关键.

研究的目的:

为了研究GaN/Sc2CCl2异质连接的电子,光学和光特性.
评估其在自动供电光探测器中使用的潜力.
探索设计高性能异构连接光探测器的策略.

主要方法:

用第一原则计算来研究异质连接.
系统地计算电气和光学性能.
在极化光下分析了光电流和光效应.

主要成果:

GaN/Sc2CCl2异质连接是一个稳定的,窄带隙 (1.15 eV) 半导体,从GaN转移电子到Sc2CCl2.
它具有很高的载体移动性 (5670 cm2 V-1 s-1) 和增强的可见光吸收.
作为光电探测器的最佳性能是在1.2 eV光子能量下观察到的,具有最大的光电流和高极化灵敏度.

结论:

该GaN/Sc2CCl2异质连接显示出作为一个高效的光探测器材料的优秀潜力.
它的特性使其适用于需要高光响应和极化灵敏度的应用.
这项工作为下一代异质连接光探测器的设计提供了可行的方法.

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