基于β-氧化物/氧化物/β-氧化物异质连接结构的紫外线光探测器
1Department of Information Technology and Electronics, Faculty of Science and Engineering, Ishinomaki Senshu University, Ishinomaki 986-8580, Japan.
Sensors (Basel, Switzerland)
|October 14, 2023
概括
一种基于β-氧化物 (β-Ga2O3) 的新型紫外线光电探测器表现出增强的性能. 与传统设计相比,这种新设备的响应性和光电放大率是传统设计的10倍.
科学领域:
- 材料科学 材料科学 材料科学
- 半导体物理 半导体物理
- 光电学是指光电子产品.
背景情况:
- 紫外线 (UV) 光探测器对于各种应用至关重要,要求高灵敏度和快速响应.
- 现有的NiO/β-Ga2O3 p-n连接装置显示出希望,但需要进一步提高性能指标.
- 氧化 (Ga2O3) 是一种宽带间隙半导体,有可能用于先进的紫外线光电子设备.
研究的目的:
- 为了制造和描述一种新的n-p-n β-Ga2O3/NiO/β-Ga2O3异质连接装置.
- 为了评估这个新结构作为紫外线光探测器的性能.
- 为了比较其响应性和光电流放大与标准的NiO/β-GaO p-n二极管.
主要方法:
- 使用β-Ga2O3和NiO层制造一个n-p-n结构.
- 描述设备的电气和光响应特性.
- 比较的β-Ga2O3/NiO/β-Ga2O3结构与一个NiO/β-Ga2O3p-n二极管.
主要成果:
- 制造的β-Ga2O3/NiO/β-Ga2O3装置表现出明显的整形特性.
- 与p-n二极管相比,它表现出了10倍的响应能力和显著的光电放大.
- 反向电流以1.5级的紫外线光强度进行缩放,并观察到对几微秒以下的光脉冲的响应.
结论:
- n-p-n β-Ga2O3/NiO/β-Ga2O3异质连接是UV光探测器的一种高度有效的结构.
- 光电流放大归因于NiO层中由于异构障碍物而形成的孔积.
- 该设备显示了高性能紫外线检测与快速响应时间的潜力.
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