柔性钙钛矿太阳能电池机械稳定性研究进展

A review on the mechanical stability of flexible perovskite solar cells

钙钛矿太阳能电池凭借其低成本、高效能等优点近期备受科研领域的关注,其光电转换效率已从初始的3.8%迅速提高到25.5%.其中沉积于聚合物衬底的柔性钙钛矿太阳能电池相比刚性钙钛矿太阳能电池具有质量小、易弯曲等特点,更适用于实际生产生活.然而,其光伏性能相比于刚性钙钛矿太阳能电池还存在一定的差距,同时柔性电池在较大变形下的机械稳定性问题是影响其投入商业使用的主要瓶颈.本文综述了近年来国内外科研团队在提升柔性钙钛矿太阳能电池机械稳定性方面的研究成果,并从材料调控与结构创新两个方面进行了总结概述,为柔性钙钛矿太阳能电池机械稳定性和综合效率的进一步提升提供了参考与建议.此外,针对柔性钙钛矿太阳能电池的创新发展与应用拓展,简述了基于柔性钙钛矿太阳能电池的集能、储能、传感一体化柔性器件的研究现状与发展前景.

Perovskite solar cells(PSCs)attract great attention from the scientific community due to their low cost,high performance,and rapid increase in photoelectric conversion efficiency(PCE)from3.8%to 25.5%.Compared with rigid perovskite solar cells,flexible perovskite solar cells(FPSCs)deposited on polymer substrates are considered to be more suitable for commercial application with their intrinsic advantages in lightweight and bendability.However,a gap presents between the photovoltaic performance of FPSCs and rigid PSCs,and the mechanical instability of FPSCs is still a critical concern for commercial application.In this review,the recent research progress on improving the mechanical stability of FPSCs is summarized and discussed through two main aspects:particle regulation and structure innovation,which could provide valuable suggestions for future research efforts in this area and the engineering application of FPSCs.On the other hand,the research advances in FPSCs-based self-powering sensors are introduced and discussed,illustrating the next-stage breakthroughs,possible innovation designs,and future developments of FPSCs.