Layered halide perovskites have garnered significant interest due to their exceptional optoelectronic properties and great promises in light-emitting applications. Achieving high-performance perovskite light-emitting diodes (PeLEDs) requires a deep understanding of exciton dynamics in these materials. This review begins with a fundamental overview of the structural and photophysical properties of layered halide perovskites, then delves into the importance of dimensionality control and cascade energy transfer in quasi-2D PeLEDs. In the second half of the review, more complex exciton dynamics, such as multiexciton processes and triplet exciton dynamics, from the perspective of LEDs are explored. Through this comprehensive review, an in-depth understanding of the critical aspects of exciton dynamics in layered halide perovskites and their impacts on future research and technological advancements for layered halide PeLEDs is provided.

中文翻译：

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多层卤化物钙钛矿发光二极管中的激子动力学


层状卤化物钙钛矿因其卓越的光电性能和在发光应用中的巨大前景而引起了人们的极大兴趣。实现高性能钙钛矿发光二极管 （PeLED） 需要深入了解这些材料中的激子动力学。本文首先对层状卤化物钙钛矿的结构和光物理特性进行了基本概述，然后深入探讨了准 2D PeLED 中维度控制和级联能量转移的重要性。在综述的后半部分，从 LED 的角度探讨了更复杂的激子动力学，例如多激子过程和三重态激子动力学。通过这一全面的综述，深入了解了层状卤化物钙钛矿中激子动力学的关键方面及其对层状卤化物 PeLED 未来研究和技术进步的影响。