Metal halide perovskites have emerged as attractive materials for use in solar cells, light emitting diodes and other optoelectronic devices, mainly due to their impressive charge transport properties, strong light absorption, long carrier diffusion lengths and long excited state lifetime. The extensive research on these materials has paved the way for a new class of materials: metal halide perovskite nanocrystals (NCs). Due to their high photoluminescence quantum yield and narrow emission that can be tuned by size and compositional variations, perovskite NCs are considered to be ideal candidates compared to traditional quantum dots. With the growing interest in these materials and the current challenges in their commercialization, this review aims mainly to provide the necessary understanding of the influence of capping ligands on the synthesis and application of perovskite NCs. The different synthetic approaches and the role of ligands in determining the morphological and optical properties of the resulting NCs will be discussed. Thereafter, we review the advances in understanding the surface chemistry and ligation in the metal halide perovskite NCs. Lastly, we review the ligand exchange and management processes that are shown to be beneficial in improving the performance and stability of perovskite nanocrystal films for optoelectronic applications.

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配体对金属卤化物钙钛矿纳米晶合成及应用的影响

金属卤化物钙钛矿已成为用于太阳能电池、发光二极管和其他光电器件的有吸引力的材料，主要是由于其令人印象深刻的电荷传输特性、强光吸收、长载流子扩散长度和长激发态寿命。对这些材料的广泛研究为一类新材料铺平了道路：金属卤化物钙钛矿纳米晶体 (NCs)。由于其高光致发光量子产率和窄发射，可通过尺寸和成分变化进行调节，与传统量子点相比，钙钛矿 NC 被认为是理想的候选材料。随着人们对这些材料的兴趣日益浓厚，以及目前商业化面临的挑战，本综述的主要目的是提供对封端配体对钙钛矿 NCs 合成和应用影响的必要理解。将讨论不同的合成方法和配体在确定所得 NC 的形态和光学特性方面的作用。此后，我们回顾了在理解金属卤化物钙钛矿 NC 中的表面化学和连接方面的进展。最后，我们回顾了配体交换和管理过程，这些过程被证明有利于提高用于光电应用的钙钛矿纳米晶体薄膜的性能和稳定性。我们回顾了在理解金属卤化物钙钛矿 NC 中的表面化学和连接方面的进展。最后，我们回顾了配体交换和管理过程，这些过程被证明有利于提高用于光电应用的钙钛矿纳米晶体薄膜的性能和稳定性。我们回顾了在理解金属卤化物钙钛矿 NC 中的表面化学和连接方面的进展。最后，我们回顾了配体交换和管理过程，这些过程被证明有利于提高用于光电应用的钙钛矿纳米晶体薄膜的性能和稳定性。