用于敏感的短波红外光检测的狭窄带隙有机半导体进行化
Zhenzhen Zhang1, Yujie Yang2, Tengfei Li1
1ICCAS: Institute of Chemistry Chinese Academy of Sciences, ICCAS, CHINA.
Angewandte Chemie (International ed. in English)
|May 20, 2025
概括
化显著增强短波红外 (SWIR) 有机半导体,通过减少非辐射衰变,提高光探测器的灵敏度和速度. 这一策略提高了有机光电探测器 (OPD) 的特定检测能力 (D*),使下一代光电子成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 有机电子 有机电子
- 光电学是指光电子产品.
背景情况:
- 有机半导体为先进的光电子提供可调节结构和解决方案可加工性.
- 有机半导体的带隙减少增加了非辐射重组,限制了短波红外 (SWIR) 光响应.
- 非辐射衰变途径阻碍了SWIR有机半导体的效率.
研究的目的:
- 采用化策略来减少SWIR有机半导体中的非辐射衰变.
- 为了提高SWIR有机光电探测器 (OPD) 的灵敏度和性能.
- 为了探索下一代光电子应用的化潜力.
主要方法:
- 对SWIR有机半导体分子应用了化策略.
- 合成和特征化了质子化和化分子 (BT-12D,L2-eC9-10D).
- 使用这些材料制造有机光电探测器 (OPD),并对其性能进行了评估.
主要成果:
- 化分子 (BT-12D) 在降低振动频率的情况下维持了SWIR光响应到~1.7μm.
- 与质子化对应物相比,减肥的OPD在1.3μm的特定检测能力 (D*) 增加了40%,比质子化对应物更高.
- 基于L2-eC9-10D的OPD表现出比质子设备高14%的D*和更快的响应时间.
结论:
- 化有效地抑制SWIR有机半导体中的非辐射衰变路径.
- 减肥OPD的性能提高,包括高D*和快速响应,与商业探测器相竞争.
- 化是一种广泛适用的策略,用于开发敏感的SWIR光电子设备.
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