Shandong University of Science and Technology Team Makes Progress in Flexible Perovskite Solar Cell Research

Shandong University of Science and Technology recently announced that the research team from its School of Chemical and Biological Engineering has made new progress in the field of flexible perovskite solar cells, and the related results have been published in the international journal Nature Communications. Perovskite solar cells have attracted attention because of their high conversion efficiency, solution processability, and relatively low manufacturing costs. Compared with traditional devices, flexible devices also offer features such as being lightweight and bendable, and are considered to have strong application potential. To address issues in flexible devices such as deformation mismatch, cracks, and reduced stability during thermal cycling, the research team proposed a "misaligned dipole engineering" strategy and developed a repairable fluorinated polymer elastomer. Experimental results show that this method helps improve film toughness, suppress thermal stress damage, and enhance the device's tolerance in complex environments. Research data show that the flexible perovskite solar cells using this strategy achieved a maximum efficiency of 25.54%, still retained more than 90% of their initial efficiency after 11,000 bending cycles, and also maintained a relatively high efficiency retention rate after 500 thermal cycles. The research team said that this work provides new ideas for developing longlife, highly stable flexible photovoltaic devices.