摘要
相较于传统无机半导体材料,有机共轭聚合物半导体具有响应光谱高度可调、质量轻、可大面积制备、与柔性基板兼容等优点,其作为光活性层在下一代可穿戴光电探测器的应用中显示出巨大的应用潜力。共轭聚合物具有多样化的结构设计,不同的分子结构对其光物理化学性能可进行灵活调控,进而展现出各具特色的光电特性。同时,通过结构优化亦可赋予共轭聚合物优良的溶液加工性能,简化其器件制备工艺。本文简要介绍了共轭聚合物光电探测器的工作原理及其相关参数,根据聚合物主链结构单元的不同,分别对各类有机共轭聚合物材料在光电探测领域的最新研究和应用进展进行综述和分析,探讨了共轭聚合物构效关系、器件结构等对光电探测性能的影响,并对其现有不足和未来发展进行展望,以期能促进共轭聚合物光电探测器的进一步发展。
Compared with traditional inorganic semiconductor materials, organic conjugated polymer semiconductors have the advantages of highly adjustable response spectrum, light quality, large-scale fabrication, and compatibility with flexible substrates. They can be used as photoactive layers and show great potential in the application of next-generation wearable photodetectors. Depending on the diverse structural design, the conjugated polymers possess unique optoelectronic abilities and solution-processable property, which can be facilely tuned with different molecular units. This article briefly introduces the working principle of the photodetector and its related important parameters. According to the different structural characteristics of the polymeric backbone, we review and analyze the latest research progress of organic conjugated polymer materials in photodetection applications based on the structure-function relationship and device configuration. Finally, the current issues and perspective are prospected for promoting the further development of conjugated polymer photodetectors.
作者
叶智杰
陈宇
Ye Zhijie;Chen Yu(MIIT Key Laboratory for Low-dimensional Quantum Structure and Devices,School of Materials Science&Engineering,Beijing Institute of Technology,Beijing,100081)
出处
《化学通报》
CAS
CSCD
北大核心
2022年第2期155-168,共14页
Chemistry
基金
国家自然科学基金项目(61905011)资助。
关键词
光电探测
共轭聚合物
异质结
响应度
比探测率
Photodetection
Conjugated polymer
Heterojunction
Responsivity
Specific detectivity
