开发具有增强光检测性能的EU-doped CdS光检测器
Surayyi Mousa Al Mujamid1, T H AlAbdulaal1, I M Ashraf1
1Department of Physics, College of Science, King Khalid University, P.O. Box 960, AlQura'a, Abha, 61421, Saudi Arabia.
Scientific reports
|February 5, 2026
概括
合成了用欧添加硫化 (CdS) 的薄膜,以增强光检测. 使用Eu的兴奋剂显著改善了光电流和设备性能,显示了高性能光传感应用的潜力.
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:
- 硫化 (CdS) 是一种半导体材料,在光电子领域有应用.
- 通过兴奋剂增强CdS特性对于先进的设备性能至关重要.
- 欧洲 (Eu) 兴奋剂正在探索,以改善光检测的CdS特性.
研究的目的:
- 为了合成和描述用欧添加的硫化 (CdS) 纳米结构的薄膜.
- 研究不同Eu度对结构,光学,电气和光检测性能的影响.
- 评估欧化CdS薄膜在高性能光传感应用中的潜力.
主要方法:
- 喷雾热解技术用于合成含有Eu的CdS薄膜,含有不同Eu度 (0-10 wt%).
- 使用X射线衍射 (XRD) 和拉曼光谱的结构分析.
- 通过原子力显微镜 (AFM) 和传导度测量进行形态和光学表征.
- 光导和短暂光导研究,以评估电力和载体动力学.
- 光探测器的制造和测试,以评估光探测性能.
主要成果:
- 多晶六角CdS结构证实具有首选的 (101) 平面生长和晶体尺寸为11-14纳米.
- 测定光带间隙在2.42-2.44 eV之间,传输率为55-85%.
- 增加Eu含量减少了激活能量,并增加了载体寿命和光电流.
- 10%重量欧化CdS薄膜显示了22倍的光电增强.
- 光探测器表现出快速响应时间,高响应度 (8.71 A/W),EQE (1710%),以及检测能力 (4×10^13 Jones).
结论:
- 欧兴奋剂有效地增强了CdS纳米结构薄膜的结构,光学和电气性能.
- 欧化CdS膜显示显著改善光电流和光检测性能.
- 这些发现凸显了EU-doped CdS薄膜在开发高性能可见光光探测器方面的潜力.
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