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基于CdS/CdS_0.42Se_0.58纳米带异质连接的高性能光电探测器

Ran Ma¹, Qiuhong Tan^1,2, Yingkai Liu^1,2

¹College of Physics and Electronic Information, Yunnan Normal University, Yunnan, Kunming 650500, People's Republic of China.

Journal of physics. Condensed matter : an Institute of Physics journal

|December 11, 2023

概括

这项研究开发了一种新的硫化物/硫化物化物 (CdS/CdSSe) 纳米带异质连接光探测器. 该设备表现出卓越的性能,显示出先进光电应用的巨大潜力.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
光电学是指光电子产品.

背景情况:

像CdSSe这样的三元合金通过调整组成来提供可调节的带间隙.
在设备应用中,CdSSe合金具有理想的光电特性.

研究的目的:

为了制造和描述一个CdS/CdSSe纳米带异质连接光探测器.
为了评估制造的异质连接装置的光电性能.

主要方法:

化学蒸汽沉积被用来合成CdS/CdSSe纳米带.
使用干燥转移技术制造了异质连接装置.

主要成果:

光探测器的光开关比率很高 (6.79 × 10^4).
实现了特殊的光谱响应 (1260 A W ^ -1) 和外部量子效率 (2.66 × 10 ^ 5%).
记录了高检测度 (7.19 × 10^15 cm Hz^1/2 W^-1) 和快速响应时间 (45/90 μs).
性能指标与现有的基于CdS (Se) 的光探测器相当或超过了它们.

结论:

对于高性能光探测器应用,CdS/CdSSe纳米带异质连接非常有前途.
由于CdSSe合金的可调性,有利于光电子设备的开发.

关键词:

在CdS中使用.在CdS0.42Se0.58中.异质连接异质连接一个光电探测器.

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