Ligand Chemistry of Inorganic Lead Halide Perovskite Nanocrystals,ACS Energy Letters

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Ligand Chemistry of Inorganic Lead Halide Perovskite Nanocrystals
ACS Energy Letters ( IF 19.3 ) Pub Date : 2023-01-26 , DOI: 10.1021/acsenergylett.2c02363
Nadesh Fiuza-Maneiro ₁ , Kun Sun ₂ , Iago López-Fernández ₁ , Sergio Gómez-Graña ₁ , Peter Müller-Buschbaum _{2,

3} , Lakshminarayana Polavarapu ₁

Affiliation

Lead halide perovskite nanocrystals (LHP NCs) have emerged as next-generation semiconductor materials with outstanding optical and optoelectronic properties. Because of the high surface-to-volume ratio, the optical and optoelectronic performance and the colloidal stability of LHP NCs largely depend on their surface chemistry, especially the ligands and surface termination. On one hand, the capping ligands improve the colloidal stability and luminescence; on the other hand the highly dynamic binding nature of ligands is detrimental to the colloidal stability and photoluminescence of LHP NCs. In addition, the surface functionalization with desired molecules induces new functionalities such as chirality, light harvesting, and triplet sensitization through energy/electron transfer or use as X-ray detectors. In this review, we present the current understanding of an atomic view of the surface chemistry of colloidal LHP NCs, including crystal termination, vacancies, and different types of capping ligands. Furthermore, we discuss the ligand-induced functionalities, including photocatalysis and chirality.

中文翻译：

无机卤化铅钙钛矿纳米晶的配体化学

卤化铅钙钛矿纳米晶体 (LHP NCs) 已成为具有出色光学和光电特性的下一代半导体材料。由于高表面体积比，LHP NCs 的光学和光电性能以及胶体稳定性在很大程度上取决于它们的表面化学，尤其是配体和表面终止。一方面，封端配体提高了胶体稳定性和发光性；另一方面，配体的高度动态结合性质不利于 LHP NC 的胶体稳定性和光致发光。此外，具有所需分子的表面功能化可通过能量/电子转移或用作 X 射线检测器诱导新的功能，例如手性、光收集和三重态敏化。在这篇评论中，我们介绍了目前对胶体 LHP NC 表面化学原子视图的理解，包括晶体终止、空位和不同类型的封端配体。此外，我们讨论了配体诱导的功能，包括光催化和手性。

更新日期：2023-01-26

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