量子化纳米材料的尺寸、组成、形状和界面光学特性的结构改变

IF 9.5 2区 材料科学 Q1 CHEMISTRY, PHYSICAL
Neng Qin, Hui Han, Guijian Guan, Ming-Yong Han
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引用次数: 0

摘要

尺寸效应对量子点(QDs)颜色和光致发光(PL)的影响引发了一个革命性的研究领域,并最终在 2023 年获得了著名的诺贝尔奖。在量子点广泛普及和大规模商业化之前,有效操纵和优化其光学特性至关重要。在本综述中,我们特别强调了 QDs 的光学特性与其尺寸、结构、组成和界面环境之间的显著相关性。我们首先追溯了量子点技术的发展历程,随后对量子点进行了分类,并概述了其典型的合成方法。随后,我们深入探讨了尺寸、组成、结构和界面配体在微调、优化和增强量子点光学特性方面的关键作用。此外,我们还阐述了半导体 QDs 与金属纳米材料异质结产生的发光增强和电荷转移现象,这有助于提高性能。最后,我们介绍了方兴未艾的手性 QD 及其创新应用领域。有了这些知识,就可以对 QDs 进行定制,使其在整个光谱范围内表现出可调节的发光特性,并通过多方面的调节实现高发光效率。这些进步使得 QDs 在广泛的应用领域中更具吸引力和前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Structurally altered size, composition, shape and interface-dependent optical properties of quantized nanomaterials

Structurally altered size, composition, shape and interface-dependent optical properties of quantized nanomaterials

The impact of the size effect on the color and photoluminescence (PL) of quantum dots (QDs) has sparked a revolutionary field of research, culminating in the prestigious Nobel Prize in 2023. Prior to their widespread popularization and large-scale commercialization, it is of paramount importance to effectively manipulate and optimize their optical properties. In this review, we place specific emphasis on the striking correlation between the optical characteristics of QDs and their size, structure, composition, and interface environment. We commence by tracing the evolution of quantum dot technology and subsequently categorizing QDs while outlining their typical synthesis methods. This is followed by a deep dive into the pivotal roles of size, composition, structure, and interfacial ligands in fine-tuning, optimizing, and enhancing the optical properties of QDs. Additionally, we illustrate the luminescence enhancement and charge transfer phenomena stemming from the heterojunction between semiconductor QDs and metal nanomaterials, which contribute to improved performance. Lastly, we introduce the burgeoning field of chiral QDs and their innovative applications. Armed with this knowledge, QDs can be readily tailored to exhibit adjustable luminous characteristics across the entire spectrum, boasting high luminous efficiency through multifaceted regulation. These advancements render QDs even more enticing and promising for a wide array of applications.

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来源期刊
Nano Research
Nano Research 化学-材料科学:综合
CiteScore
14.30
自引率
11.10%
发文量
2574
审稿时长
1.7 months
期刊介绍: Nano Research is a peer-reviewed, international and interdisciplinary research journal that focuses on all aspects of nanoscience and nanotechnology. It solicits submissions in various topical areas, from basic aspects of nanoscale materials to practical applications. The journal publishes articles on synthesis, characterization, and manipulation of nanomaterials; nanoscale physics, electrical transport, and quantum physics; scanning probe microscopy and spectroscopy; nanofluidics; nanosensors; nanoelectronics and molecular electronics; nano-optics, nano-optoelectronics, and nano-photonics; nanomagnetics; nanobiotechnology and nanomedicine; and nanoscale modeling and simulations. Nano Research offers readers a combination of authoritative and comprehensive Reviews, original cutting-edge research in Communication and Full Paper formats. The journal also prioritizes rapid review to ensure prompt publication.
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