Over the past decade, perovskite solar cell (PSC) technology has made significant progress and achieved leaps in efficiency. As the technology continues to mature, flexible PSCs (F-PSCs) are becoming key components for a variety of applications, from powering portable electronics and wearable devices to seamless integration into e-textiles and large industrial rooftops. F-PSC has great commercial potential due to its lightweight, mechanical flexibility and adaptability for cost-effective roll-to-roll manufacturing. However, there are ongoing concerns about the overall stability and mechanical soundness of these devices.
Liu Shengzhong of Shaanxi Normal University, Yang Dong of Dalian Institute of Chemical Physics, and Kai Wang of Zhejiang University discussed in depth recent progress in enhancing the mechanical stability of F-PSCs. It covers a range of key aspects, including perovskite material optimization, precise grain control, film quality enhancement, strategic interface engineering, innovatively developed flexible transparent electrodes, wise substrate selection, and integration of various functional layers.
By collating and analyzing these specialized research efforts, this review sheds light on current progress in addressing mechanical stability challenges. Furthermore, it provides valuable insights into ongoing obstacles and bottlenecks that require attention and innovative solutions in the F-PSC field.
F. Song, D. Zheng, J. Feng, J. Liu, T. Ye, Z. Li, K. Wang, S. F. Liu, D. Yang, Mechanical Durability and Flexibility in Perovskite Photovoltaics: Advancements and Applications. Adv. Mater. 2024, 2312041.
https://doi.org/10.1002/adma.202312041