Inhibiting Ion Migration and Stabilizing Crystal-Phase in Halide Perovskite via Directly Incorporated Fluoride Anion,Angewandte Chemie International Edition

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Inhibiting Ion Migration and Stabilizing Crystal-Phase in Halide Perovskite via Directly Incorporated Fluoride Anion
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2024-09-05 , DOI: 10.1002/anie.202413550
Boyao Zhang ₁ , Zhaosheng Hu ₁ , Jie Su ₁ , Zhen Gong ₂ , Xing Guo ₃ , Xiaoqing Chen ₂ , Yingguo Yang ₄ , Zhenhua Lin ₁ , Liming Ding ₅ , Yue Hao ₁ , Jingjing Chang ₆

Affiliation

Fluoride anion (F⁻) with extremely high electronegativity was directly inserted in lead halide perovskite lattice by overcoming the insolubility of PbF₂ via the introduced pyridinium halide as a novel volatile solubilizing ligand, which strongly suppressed ion migration and stabilized crystal-phase, leading to an advantageous device performance and operational stability.

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