有机太阳能电池性能衰减机理研究进展  

Research Progress in Degradation Mechanism of Organic Solar Cells

作　　者：刘彦甫 李世麟 荆亚楠 肖林格 周惠琼 Liu Yanfu;Li Shilin;Jing Yanan;Xiao Linge;Zhou Huiqiong(College of Chemistry,Zhengzhou University,Zhengzhou 450001;CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,National Center for Nanoscience and Technology,Beijing 100190;School of Chemistry,Beihang University,Beijing 100191)

机构地区：[1]郑州大学化学学院,郑州450001 [2]国家纳米科学中心中国科学院纳米系统与多级次制造重点实验室,北京100190 [3]北京航空航天大学化学学院,北京100191

出　　处：《化学学报》2022年第7期993-1009,共17页Acta Chimica Sinica

基　　金：国家重点研发计划项目(No.2017YFA0206600);国家自然科学基金(No.21922505);中国科学院战略性先导科技专项(B类)(No.XDB36000000)资助。

摘　　要：近年来随着非富勒烯Y系列明星分子受体的出现,单结有机太阳能电池的光电转换效率已经突破19%,但是器件在运行条件下缺乏良好的稳定性,严重制约了其商业化发展.因此越来越多的研究聚焦于造成有机太阳能电池性能衰减的原因以及如何提高有机太阳能电池的稳定性.由于有机太阳能电池复杂的器件结构、不尽相同的活性层材料以及在稳定性研究中条件的差异,造成了对有机太阳能电池器件衰减研究的困难.为了更全面地了解有机太阳能电池的衰减过程,对近些年有机太阳能电池器件衰减过程的研究成果进行综述,总结了由于给受体材料化学分解、活性层形貌变化、传输层和电极腐蚀以及界面反应等原因造成的器件性能衰减,并介绍了近些年关于提高器件稳定性的一些策略,最后对有机太阳能电池的未来发展进行了展望.During the last several years,with the emergence of non-fullerene Y-series star molecular acceptors,the power conversion efficiency of single-junction organic solar cells has exceeded 19%.However,the relatively poor stability of the devices under different operating conditions seriously restricts its commercialization.Therefore,more and more researches are focused on the causes of devices degradation of organic solar cells and how to improve the stability of organic solar cells(OSCs).OSCs have complex active layer materials and different device structure.It is still not clear about the performance and decay process of organic solar cells.Most of the previous reviews on OSC stability are based on external factors such as moisture,oxygen,light and heat,and lack of explanation of device degradation process.In this review,the literatures of OSCs device degradation in recent years are reviewed and several factors that cause performance degradation in OSCs devices are summarized.Firstly,the device performance attenuation caused by the change of active layer,the photooxidation reaction caused by chemical molecule changes,photochemical reaction,and device aging process,and the morphological changes in active layers caused by photothermal stresses and their effects on device performance are reviewed.Then,the influence of the changes at the interface and transporting layer degradation is introduced.Finally,the multi-directional strategies for improving the stability of OSCs are stated and how to improve the stability of organic solar cells is suggested.

关 键 词：稳定性 化学分解 形貌变化 界面反应 

分 类 号：TM914.4[电气工程—电力电子与电力传动]