高性能自动供电的基于MgZnO的Schottky和PIN远紫外线光检测器
Fuwang Zhou1,2, Kewei Liu1,2, Yongxue Zhu1
1State Key Laboratory of Luminescence Science and Technology, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, No. 3888 Dongnanhu Road, Changchun 130033, PR China.
ACS applied materials & interfaces
|October 31, 2025
概括
新的自动供电远紫外C (远紫外C) 光探测器使用立方相MgZnO. 这些设备显示超快的响应速度和增强的性能在一个PIN异质连接设计的高级紫外线检测应用程序.
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.
- 半导体物理 半导体物理
背景情况:
- 自动供电的远紫外线C (远紫外线) 光探测器对于各种应用至关重要.
- 立方相MgxZn1-xO (c-MgZnO) 是一种超宽带间半导体合金,具有可调节的特性,适用于远紫外线检测.
- 现有的光电探测器技术在性能和操作条件方面存在局限性.
研究的目的:
- 设计和制造使用c-MgZnO的新型自动供电远紫外线光探测器.
- 为了研究Pt/c-MgZnO/ZnO Schottky连接和NiO/c-MgZnO/ZnO PIN异质连接装置的性能.
- 分析用于高效光检测的基本机制,并比较设备性能.
主要方法:
- 施托基连接 (Pt/c-MgZnO/ZnO) 和PIN异构连接 (NiO/c-MgZnO/ZnO) 光探测器的制造.
- 在远紫外线照明下对设备性能进行表征,包括响应速度,响应率,校正比率和暗电流.
- 分析能量带图和载体传输机制,以了解设备的操作.
主要成果:
- 肖特基和PIN设备都展示了内在的远紫外线光检测,在零偏差下具有超快的响应时间 (上升时间~30 ns,衰变时间~450 ns).
- 与Schottky装置相比,PIN异质连接装置表现出卓越的性能,包括更高的响应率,更好的整形比率和更低的暗电流.
- 该PIN设备在222nm照明下实现了约3.43mA/W的响应,在200°C时增加到约96mA/W.
结论:
- 开发的基于c-MgZnO的Schottky和PIN异联光探测器是有效的自动供电远紫外线检测.
- PIN异质连接设计增强了内置潜力和空间电荷区域,从而产生了卓越的光检测特性.
- 这些设备显示出高性能,高温远紫外线传感应用的前景.
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