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Mitigating low-dimensional phases and defects with methylammonium chloride in high-performance Dion-Jacobson quasi-2D
Chunqing Li1, Towhid H Chowdhury1, Masahiro Yoshizawa-Fujita1
1Faculty of Science and Engineering, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo, 102-8554, Japan. y-tabuch@sophia.ac.jp.
Chemical Communications (Cambridge, England)
|April 8, 2025
Abstract:
Methylammonium chloride (MACl) enhances the performance of Dion-Jacobson quasi-2D tin perovskite solar cells by suppressing low-dimensional phases and defects. The addition of an optimal amount of MACl (20 mol%) improves the crystallinity, film morphology, and charge transport of the quasi-2D tin perovskite layer and enhances the power conversion efficiency (PCE) from 2.9% to 6.2%.
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