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Improving the Quality and Luminescence Performance of All-Inorganic Perovskite Nanomaterials for Light-Emitting Devices by Surface Engineering.
Small ( IF 13.0 ) Pub Date : 2020-05-20 , DOI: 10.1002/smll.201907089 Zhaohui Shen 1 , Suling Zhao 1, 2 , Dandan Song 1 , Zheng Xu 1 , Bo Qiao 1 , Pengjie Song 1 , Qiongyu Bai 1 , Jingyue Cao 1 , Gaoqian Zhang 1 , Wageh Swelm 2
Small ( IF 13.0 ) Pub Date : 2020-05-20 , DOI: 10.1002/smll.201907089 Zhaohui Shen 1 , Suling Zhao 1, 2 , Dandan Song 1 , Zheng Xu 1 , Bo Qiao 1 , Pengjie Song 1 , Qiongyu Bai 1 , Jingyue Cao 1 , Gaoqian Zhang 1 , Wageh Swelm 2
Affiliation
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Lead halide perovskites and their applications in the optoelectronic field have garnered intensive interest over the years. Inorganic perovskites (IHP), though a novel class of material, are considered as one of the most promising optoelectronic materials. These materials are widely used in detectors, solar cells, and other devices, owing to their excellent charge‐transport properties, high defect tolerance, composition‐ and size‐dependent luminescence, narrow emission, and high photoluminescence quantum yield. In recent years, numerous encouraging achievements have been realized, especially in the research of CsPbX3 (X = Cl, Br, I) nanocrystals (NCs) and surface engineering. Therefore, it is necessary to summarize the principles and effects of these surface engineering optimization methods. It is also important to scientifically guide the applications and promote the development of perovskites more efficiently. Herein, the principles of surface ligands are reviewed, and various surface treatment methods used in CsPbX3 NCs as well as quantum‐dot light‐emitting diodes are presented. Finally, a brief outlook on CsPbX3 NC surface engineering is offered, illustrating the present challenges and the direction in which future investigations are intended to obtain high‐quality CsPbX3 NCs that can be utilized in more applications.
中文翻译：
通过表面工程提高用于发光器件的全无机钙钛矿纳米材料的质量和发光性能。
多年来，卤化钙钛矿及其在光电领域的应用引起了广泛的关注。无机钙钛矿（IHP）尽管是一类新颖的材料，但仍被认为是最有前途的光电材料之一。这些材料因其出色的电荷传输特性，高缺陷容忍度，与组成和尺寸有关的发光，窄发射和高光致发光量子产率而被广泛用于探测器，太阳能电池和其他设备。近年来，已经取得了许多令人鼓舞的成就，尤其是在CsPbX 3的研究中（X = Cl，Br，I）纳米晶体（NC）和表面工程。因此，有必要总结这些表面工程优化方法的原理和效果。科学地指导应用并更有效地促进钙钛矿的开发也很重要。本文对表面配体的原理进行了综述，并介绍了CsPbX 3 NC中使用的各种表面处理方法以及量子点发光二极管。最后，简要介绍了CsPbX 3 NC表面工程，阐明了当前面临的挑战以及未来研究旨在获得可在更多应用中使用的高质量CsPbX 3 NC的方向。
更新日期：2020-07-02
中文翻译：
通过表面工程提高用于发光器件的全无机钙钛矿纳米材料的质量和发光性能。
多年来，卤化钙钛矿及其在光电领域的应用引起了广泛的关注。无机钙钛矿（IHP）尽管是一类新颖的材料，但仍被认为是最有前途的光电材料之一。这些材料因其出色的电荷传输特性，高缺陷容忍度，与组成和尺寸有关的发光，窄发射和高光致发光量子产率而被广泛用于探测器，太阳能电池和其他设备。近年来，已经取得了许多令人鼓舞的成就，尤其是在CsPbX 3的研究中（X = Cl，Br，I）纳米晶体（NC）和表面工程。因此，有必要总结这些表面工程优化方法的原理和效果。科学地指导应用并更有效地促进钙钛矿的开发也很重要。本文对表面配体的原理进行了综述，并介绍了CsPbX 3 NC中使用的各种表面处理方法以及量子点发光二极管。最后，简要介绍了CsPbX 3 NC表面工程，阐明了当前面临的挑战以及未来研究旨在获得可在更多应用中使用的高质量CsPbX 3 NC的方向。
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