Enhancing Stability of Red-Emitting CsPbIₓBr₃₋ₓ QDs for Advance Display Applications

IF 5.1 3区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nanoscale Pub Date : 2025-09-22 DOI:10.1039/d5nr03199k

Bin Wang, Fengyi Zhang, Rongqiu Lv, Jun Chen, Haibo Zeng

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引用次数: 0

Abstract

All-inorganic metal halide perovskite (MHP) material has emerged as promising candidates for next-generation displays-owing to their narrow emission spectra, near-unity photoluminescence quantum yield (PLQY), and exceptional defect tolerance. However, the development of pure red-emitting devices (620-660 nm) based on cesium lead iodide/bromide (CsPbIxBr3-x) quantum dots (QDs) remains challenging because of their susceptibility to environmental factors (moisture, heat, oxygen, and light), as well as their intrinsic structural instability. Recent progress in the engineering of stable red-emitting CsPbIxBr3-x QDs has centered on three main approaches: ion doping, ligand exchange, and encapsulation strategies, each offering distinct physicochemical characteristics and complementary advantages in stabilization. This review highlights various causes of instability and degradation mechanisms of red-emitting cesium lead iodide bromide QDs and discusses innovative approaches to enhance their stability and optoelectronic performance. By tailoring the QD structure and shielding it from environment factors, significant progress has been made in prolonging its luminescence lifetime and performance. Besides, we outline future research directions, emphasizing the need for scalable and sustainable solutions to unlock the full potential of MHP QDs in advanced-high-efficiency display technologies.

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提高红色发光CsPbI的稳定性ₓBr₃ₓ量子点用于高级显示应用

全无机金属卤化物钙钛矿（MHP）材料由于其狭窄的发射光谱、近统一的光致发光量子产率（PLQY）和优异的缺陷耐受性而成为下一代显示器的有希望的候选者。然而，基于碘化铯铅/溴化铯（CsPbIxBr3-x）量子点（QDs）的纯红色发射器件（620-660 nm）的发展仍然具有挑战性，因为它们对环境因素（湿热、氧气和光）的敏感性以及它们固有的结构不稳定性。近年来，稳定的红发射CsPbIxBr3-x量子点的工程进展主要集中在离子掺杂、配体交换和包封策略三种方法上，每种方法都具有不同的物理化学特性和互补的稳定性优势。本文综述了红色发光铯-碘化铅溴化量子点不稳定性的各种原因和降解机制，并讨论了提高其稳定性和光电性能的创新方法。通过定制量子点结构和屏蔽环境因素，在延长其发光寿命和性能方面取得了重大进展。此外，我们概述了未来的研究方向，强调需要可扩展和可持续的解决方案，以释放MHP量子点在先进高效显示技术中的全部潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nanoscale CHEMISTRY, MULTIDISCIPLINARY-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

12.10

自引率

3.00%

发文量

1628

审稿时长

1.6 months

期刊介绍： Nanoscale is a high-impact international journal, publishing high-quality research across nanoscience and nanotechnology. Nanoscale publishes a full mix of research articles on experimental and theoretical work, including reviews, communications, and full papers.Highly interdisciplinary, this journal appeals to scientists, researchers and professionals interested in nanoscience and nanotechnology, quantum materials and quantum technology, including the areas of physics, chemistry, biology, medicine, materials, energy/environment, information technology, detection science, healthcare and drug discovery, and electronics.