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September 10, 2025Angewandte Chemie International Edition

Exploring Coupling‐Derived A′‐Site Cations for Crystallization Delay and Defect Passivation in Quasi‐2D Perovskite Light‐Emitting Diodes

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Authors

XQXiangqian QinMLMingliang LiYZYaping Zhao

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Overview

In situ synthesis of A′-site cations improves crystallization and defect management, suggesting potential for higher efficiency.

Key Points

  • The incorporation of A′-site cations improved crystallization dynamics and reduced defects in perovskite layers.
  • The modified quasi‐2D PeLEDs demonstrated an exceptional external quantum efficiency of 26.07%.
  • Synthesis involved diphenylphosphinic chloride, providing dual mechanisms for crystallization control and defect passivation.
  • This work highlights a valuable strategy for enhancing perovskite materials' performance in light-emitting applications.

Cite This Study

Qin et al. (2025) studied this question.

synapsesocial.com/papers/68c1a5ff54b1d3bfb60e0268https://doi.org/10.1002/anie.202513755
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