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The absorption layer FAPbI3 thin film of perovskite solar cells was prepared by one-step spin coating method. TU was added in the preparation process of the absorption layer. The effects of TU on the phase structure and microstructure of FAPbI3 thin film and the photoelectric performance of assembled perovskite solar cells were studied. PL and J-V curves were used to characterize the samples. The results show that the addition of TU increases the crystallinity and orientation of film, improves the coverage of FAPbI3 film, and reduces the number of holes and cracks. The addition of TU improves the light absorption capacity and emission peak intensity of FAPbI3 film. The J-V curve is tested. The TU doped cell has the best photoelectric performance, and its photoelectric conversion efficiency is up to 24.07%.

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Research on the Control of Crystal Quality and Photoelectric Performance of Perovskite Solar Cells by Sulfur Donor Lewis Base Doping

  • 会议论文

  • 发表日期：

    2025年

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  • Zhiqiang Hu,
  • Ruonan Wu,
  • Zhuguang Liu,
  • Yihao Sun,
  • Haibin Chen

摘要

The absorption layer FAPbI3 thin film of perovskite solar cells was prepared by one-step spin coating method. TU was added in the preparation process of the absorption layer. The effects of TU on the phase structure and microstructure of FAPbI3 thin film and the photoelectric performance of assembled perovskite solar cells were studied. PL and J-V curves were used to characterize the samples. The results show that the addition of TU increases the crystallinity and orientation of film, improves the coverage of FAPbI3 film, and reduces the number of holes and cracks. The addition of TU improves the light absorption capacity and emission peak intensity of FAPbI3 film. The J-V curve is tested. The TU doped cell has the best photoelectric performance, and its photoelectric conversion efficiency is up to 24.07%.