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基于NiAl₂O₄/4H-SiC异质连接的超快速多功能光探测器

Pengbo Zhang¹, Jiarui Guo¹, Lingli Zhang¹

¹School of Physics, Harbin Institute of Technology, Harbin 150001, China.

ACS applied materials & interfaces

|April 11, 2024

概括

这项研究介绍了一种使用NiAl2O4/4H-SiC异质连接的新型太阳盲光探测器. 它表现出快速的响应时间和位置灵敏度,非常适合太空光学通信.

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:

太阳盲光探测器对于需要在紫外线频谱中检测而忽略可见光的应用至关重要.
宽带差半导体,特别是含的螺旋氧化物,如NiAl2O4,提供稳定性和p型导电性.
半导体异质连接中的光伏效应是开发敏感光探测器的关键.

研究的目的:

开发和描述基于NiAl2O4/4H-SiC异质连接的多功能太阳盲光探测器.
为了评估NiAl2O4/4H-SiC异质连接的位置灵敏度和光伏放松时间.
评估这种异质连接对于太空光通信系统的适用性.

主要方法:

制造一个NiAl2O4/4H-SiC异质连接.
在405nm激光照明下测量位置灵敏度.
在266nm激光照明下确定垂直光伏 (VPV) 和横向光伏 (LPV) 效应放松时间.
在模拟空间光通信场景中测试设备.

主要成果:

NiAl2O4 / 4H-SiC异质连接在405nm时表现出1589.7mV/mm的位置灵敏度.
记录了超快放松时间:在266nm照明下,VPV为0.32μs,LPV为0.42μs.
光探测器表现出强大的光电子性能,阳光的干扰最小,适合用于太空应用.

结论:

NiAl2O4/4H-SiC异质连接是一种高效的太阳盲光探测器.
其优异的位置灵敏度和超快的响应时间使其适用于先进的光学传感.
这种材料系统为太空光通信中的自动供电,高性能太阳盲探测器提供了有前途的候选.

关键词:

如果是SiC SiC 侧向光伏效应的作用太阳盲光探测器的光检测器螺旋氧化物NiAl2O4的氧化物超快速放松的放松方式

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P-N junction

P-N junction

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