聚合物/小分子有机光伏电池活性层形貌调控研究进展  

Research Progress on the Active Layer Morphology Control of Polymer/Small Molecule Organic Photovoltaic Cells

作　　者：高旭[1] 王国政[1] 刘菊耀 刘丽 杨继凯[1] 王蓟[1] Gao Xu;Wang Guozheng;Liu Juyao;Liu Li;Yang Jikai;Wang Ji(College of Science,Changchun University of Science and Technology,Changchun 130022,China)

机构地区：[1]长春理工大学理学院,长春130022

出　　处：《半导体技术》2020年第7期489-498,共10页Semiconductor Technology

基　　金：国家自然科学基金资助项目(51502023);吉林省教育厅资助项目(JJKH201890588KJ,JJKH20200777KJ);吉林省科技厅研发项目(20180201033GX);吉林省科技发展计划项目(20190302125GX)。

摘　　要：近年来,基于新的有机半导体材料的合成、器件结构的优化以及对太阳电池活性层形貌的有效调控,有机光伏电池(OPV)得到了迅速的发展。目前基于聚合物/小分子共混体系的单结OPV的光电转换效率已经超过18%。首先,概述了聚合物/小分子OPV的研究进展;接着,介绍了OPV的工作原理和相分离机理,并分析了OPV的光电性能、活性层形貌特征参数以及相分离过程这三者之间的关系;其次,探讨了不同物理调控手段对活性层形貌的影响,主要介绍了调节溶液的聚集、成膜过程中优化活性层形貌以及薄膜后处理等优化活性层的方法,重点介绍了聚合物/小分子OPV的活性层形貌调控的方法;最后,对OPV未来的发展方向进行了展望。In recent years, the organic photovoltaic cell(OPV) has developed rapidly,based on the synthesis of the new organic semiconductor material, the optimization of the device structure and the effective control of the active layer morphology of solar cells. At present, the photoelectric conversion efficiency of the single-junction OPV based on polymer/small molecule blend systems is more than 18%. Firstly,the research progress of the polymer/small molecule OPV is summarized. Then,the working principle of the OPV and the mechanism of the phase-separation are introduced. Besides, the relationship among photoelectric properties of the OPV, morphology characteristic parameters of the active layer and the phase-separation process is analyzed. Next, the effects of different physical control methods on the morphology of the active layer are discussed. The methods of optimizing the active layer are introduced,such as adjusting the solution aggregation, optimizing the morphology of the active layer in the process of the film formation and optimizing the post-treatment of the active layer. The method of controlling the morphology of the active layer of the polymer/small molecule OPV is significantly introduced. Finally, the future development direction of OPV is prospected.

关 键 词：聚合物太阳电池 有机光伏电池(OPV) 小分子 形貌 效率 

分 类 号：TN304.5[电子电信—物理电子学]