高性能和稳定的Sb
Jiawei Zhu1, Lisu Yu1, Zhenghai Wang1
1School of Information Engineering, Nanchang University, Nanchang 330031, Jiangxi, China.
ACS applied materials & interfaces
|June 5, 2023
概括
这项研究通过优化设备结构来增强硫化物 (Sb2S3) 光探测器 (PD) 的可见光通信 (VLC). 新设计实现了更快的响应速度和高性能,使Sb2S3 PD适合未来的VLC应用.
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.
- 半导体设备 半导体设备
背景情况:
- 光探测器 (PD) 对于可见光通信 (VLC) 系统至关重要.
- 硫化 (Sb2S3) 是一种低成本,无毒的半导体,具有高光学吸收能力,但其PD的响应速度很慢.
- 现有的Sb2S3 PDs在可见光谱中表现出弱光检测.
研究的目的:
- 优化p-i-n类型Sb2S3 PDs的设备结构,以提高VLC系统的性能.
- 为了提高Sb2S3 PDs的响应能力和响应速度.
- 评估Sb2S3 PDs对于可见光通信应用的适用性.
主要方法:
- 优化了p-i-n类型的PD结构,采用了p类型的Sb2Se3孔输送层 (HTL).
- 使用SCAPS-1D软件模拟最佳设备厚度.
- 将优化的Sb2S3 PD集成到一个具有匹配光检测电路的VLC系统中.
主要成果:
- 实现了高响应率 (0.34 A W-1),特定检测能力 (2.20 × 1012 Jones) 和-440 kHz的-3 dB带宽.
- 证明了高稳定性和光谱响应 (60%从360-600nm),非常适合可见光波段.
- 成功将Sb2S3 PD集成到VLC系统中,证实了其实际适用性.
结论:
- 优化的Sb2S3 PD结构显著增强了内置电场和载波迁移,从而实现了高性能.
- 对于未来的可见光通信系统来说,Sb2S3 PDs 是一个有希望的,具有成本效益的替代方案.
- 开发的PD为VLC中高效的光电子转换和信号传输提供了可行的解决方案.
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