Researchers from DGIST and the Korea Institute of Science and Technology have developed a novel technique to improve the performance and durability of perovskite solar cells by incorporating hydrogen-bonding additives. These additives form hydrogen bonds with organic substances in the perovskite solution, protecting the solar cells’ components from rapid degradation. The method stabilizes the perovskite material, reducing defects and increasing the power conversion efficiency from 22.61% to 24.31%. Solar cells treated with these additives retained 96.7% efficiency after 140 days of storage and demonstrated excellent thermal stability, maintaining over 98% of their initial performance after 72.5 days at 85°C. This breakthrough addresses key challenges in perovskite solar cell commercialization, such as ion degradation and thermal instability.
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