有机光敏二极管具有功能材料种类丰富、光敏波长可调控、成本低和可在柔性基底上制备等优点,在图像传感、免疫探测、光学通信等方面有着重要的应用前景。本文对近年来引起广泛关注的一些有机光敏二极管材料进行了归纳,探讨了它们在对不同波长敏感的光敏器件中的特性,总结了有机光敏二极管的结构优化、界面修饰和界面传输机理及其内部光强分布的相关研究,并介绍了一些基于有机光敏二极管的光电功能器件实际应用。最后,对有机光敏二极管未来的发展方向和应用前景进行了展望。
Organic photodiodes( OPDs) have attracted great attention for potential applications in organic optocouplers,image sensors,immune detection and optical communication,due to their advantages of lo wcost,plenty of functional materials,tunable absorption wavelengths and compatibility with flexible substrates. This article presents an overvie wof organic photosensitive materials widely used in OPDs, with response spectra regioning from UV to near infra-red. Researches on structure optimization,interface modification,carriers transmission mechanism and internal optical distribution of OPDs are summarized. Some practical applications of the OPDs in optoelectronic fields are also introduced. Finally,an outlook on future development of OPDs is briefly brought up.