有机太阳能电池的活性层后处理工艺研究进展

Research Progress of the Post-Treatment Technology of the Active Layer in Polymer Solar Cells

有机太阳能电池(Polymer Solar Cell,PSC)由于具有环保低能耗、轻量低成本、柔性、可溶液加工和大面积印刷制备的综合性优势而受到广泛关注。活性层是PSC最重要的组成部分,其形貌的调控和优化决定了器件最终的性能,因此有必要对活性层优化工艺进行系统整理和分析。对活性层后处理工艺在PSC中应用的最新研究进展进行了综述,包括热退火、溶剂蒸气退火、热退火与溶剂蒸气退火的组合、添加辅助层和极性溶剂辅助后处理等工艺,并就其对器件性能改善的原因和对活性层形貌优化的机理进行了分析和总结,为PSC性能优化研究和产业化发展提供了理论依据。

Polymer solar cells have attracted wide attention due to their comprehensive advantages of environmental protection,low energy consumption,light weight,low cost,flexibility,solution processing and large-area printing.The active layer is the most important component of PSC,and the adjustment and optimization of its morphology determine the final device performance.Therefore,it is necessary to systematically organize and analyze the active layer optimization process.In this paper,the latest research progress of the application of reactive layer post-treatment technology in PSC is reviewed,including the thermal annealing,solvent vapor annealing,combination of thermal annealing and solvent vapor annealing,addition of the auxiliary layer and polar solvent-assisted post-treatment.In addition,the reasons for improving the device performance and the mechanism of optimizing the morphology of the active layer are analyzed and summarized,which provide a theoretical basis for the performance optimization research and industrial development of PSC.