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Boosting the efficiency of Ruddlesden-Popper tin perovskite solar cells through ethylenediamine
Jorim Okoth Obila1, Chunging Li1, Masatoshi Yanagida2
1Faculty of Science and Engineering, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo, Japan. y-tabuch@sophia.ac.jp.
Chemical Communications (Cambridge, England)
|October 14, 2025
Abstract:
Quasi-two-dimensional Ruddlesden-Popper tin perovskite solar cells (q-2D SnPSCs) show low power conversion efficiency (PCE) due to the formation of randomly oriented multiple lower-dimensional perovskite phases. Ethylenediamine dihydroiodide tuned the crystal orientation and modulated the formation of lower n members in RP tin perovskite films, resulting in q-2D SnPSCs with a PCE of 8.29%.
