元素扩散诱导载体运输增强在高性能CZTSSe自动供电光探测器中
Jiaqi Chen1, Bin Xu1, Hai Ma1
1Key Laboratory of Polar Materials and Devices (MOE), Department of Electronics, East China Normal University, Shanghai, 200241, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|January 8, 2024
概括
基于铜锡硫化 (CZTSSe) 的自动供电光探测器实现了高性能. 优化的接口和减少的缺陷导致了出色的响应能力,检测能力和快速响应速度.
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:
- 铜锡硫化 (CZTSSe) 是薄膜太阳能电池和光电探测器的一个有前途的材料.
- 自动供电的光电探测器在低功耗应用中具有优势.
- 界面工程对于优化光检测器性能至关重要.
研究的目的:
- 使用 CZTSSe.Se. 来制造和描述一个高性能自动供电光探测器.
- 为了研究元素扩散对设备性能的影响.
- 了解优良的光电子特性背后的机制.
主要方法:
- 使用传统的光伏设备结构制造CZTSSe光探测器.
- 电气和微观结构的特征.
- 在零偏差下的性能评估,包括响应性,检测性,线性动态范围,响应速度和切换比率.
主要成果:
- 最大响应度为0.77 A W-1和检测能力为8.78 × 10 12. 斯.
- 宽线性动态范围为103dB,超高的开关比为3.54×105.
- 快速响应时间 (0.576/1.792μs的上升/下降) 归因于优化带线对齐,抑制接口缺陷,低陷密度和有利的反向接触.
结论:
- 元素扩散优化了带对齐,并抑制了接口缺陷,提高了光检测器的性能.
- CZTSSe光探测器表现出极好的响应能力,检测能力,线性动态范围和响应速度.
- 这项工作为设计高性能自动供电光探测器提供了途径.
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