酞菁类化合物在有机光电探测领域的研究进展

Research progress of phthalocyanines in organic photodetectors

光电探测器因其探测波长的可调谐性、低成本制造、易与柔性/轻质器件兼容等优点,在图像显示、光学通信、生物传感等前沿科技领域备受关注。酞菁类化合物具有窄而可调的光学带隙、优异的物理化学稳定性、较高的光生载流子效率等优点,已在光电探测器核心功能层——光活性层中极具应用潜力,成为近年来被重点研究的一类光敏材料。首先,介绍了酞菁类化合物的结构、性质和分类;然后,简述了光电探测器的探测原理、器件基本结构和光电特性参数;重点回顾并分析了不同类型酞菁化合物在光电探测器光活性层的制备、探测波长的调节、器件功能的整体优化等方面的研究进展和影响因素;最后,总结并展望了酞菁类化合物在有机光电探测领域未来的发展方向。

Organic photodetectors have attracted much attention in frontier science and technology fields such as image display,optical communication and biosensing due to their tunable detection wavelength,low-cost fabrication,and good compatibility with flexible/lightweight devices.As an important class of photosensitive materials,phthalocyanines have great application potential in the photoactive layer,the core functional layer of organic photodetectors,because of their narrow and tunable optical bandgap,excellent physicochemical stability and high photogenerated carrier efficiency.Herein,the structure,properties,and classification of phthalocyanines were firstly introduced.Next,the detection principle,basic structure and photoelectric properties of photodetectors were briefly described with emphasis on the research progress and influencing factors of different types of phthalocyanines in the preparation of photoactive layer,the regulation of detection wavelength and the global optimization of device performance.Finally,the development prospect of phthalocyanines in the field of organic photodetectors was discussed.