Abstract
The effect of anti-solvent IPA (isopropyl alcohol, C3H8O) treatment at low temperatures on the crystallization of perovskite CH3NH3PbI3 (MAPbI3) films has been investigated. It has been indicated that both the grain size in the films and the crystalline quality of the films are improved by using anti-solvent IPA treatment at 250 K, in comparison with the treatment at 300 K (room temperature). The improvement on the film crystalline quality has also been demonstrated from the performance enhancement of fabricated solar cells, as indicated by the power conversion efficiency (PCE) of 19.65% and 17.2% for the cells with films treated at 250 K and 300 K, respectively.
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We acknowledge the financial support by the National Natural Science Foundation of China (No 11874200 and 12204245).
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Wang, Q., Jiang, J., Wu, X. et al. Improvement of Perovskite CH3NH3PbI3 Films on Crystallization for Efficient Perovskite Solar Cells with Low-Temperature Anti-solvent Approach. J. Electron. Mater. 53, 86–93 (2024). https://doi.org/10.1007/s11664-023-10772-5
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DOI: https://doi.org/10.1007/s11664-023-10772-5