AFM: 23.61% efficiency! High-efficiency trans-titanium solar cells and modules with more than 86% FF

• Poor interface quality between nickel oxide and halide perovskite limits the performance and stability of nickel oxide-based perovskite solar cells Decomposed reactive surface modification methods. Pyrolysis of urea can reduce high-valent nickel and replace the adsorbed hydroxyl groups with isocyanate.

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• Combining theoretical and experimental analyses, the treated NiO films exhibit suppressed surface states and improved transport level alignment with halide perovskite absorbers. Through this strategy, NiO-based perovskite solar cells achieve a champion power conversion efficiency of 23.61% and a fill factor exceeding 86%. After thermal aging at 85 °C for 2000 h, the efficiency of the device remained above 90%. In addition, the perovskite solar modules achieved efficiency values ​​of 18.97% and 17.18% over areas of 16 cm2 and 196 cm2, respectively.
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• Li, C., Zhang, Y., Zhang, X., Zhang, P., Yang, X., Chen, H., Efficient Inverted Perovskite Solar Cells with a Fill Factor Over 86% via Surface Modification of the Nickel Oxide Hole Contact. Adv. Funct. Mater. 2023, 2214774. https://doi.org/10.1002/adfm.202214774

  
  

  https://onlinelibrary.wiley.com/doi/10.1002/adfm.202214774