Recent progresses and challenges in colloidal quantum dot light-emitting diodes: a focus on electron transport layers with metal oxide nanoparticles and organic semiconductors.

IF 8 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Nanoscale Horizons Pub Date : 2024-09-25 DOI:10.1039/d4nh00370e

Jaehoon Kim

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引用次数: 0

Abstract

Colloidal quantum dots (QDs) are highly promising for display technologies due to their distinctive optical characteristics, such as tunable emission wavelengths, narrow emission spectra, and superb photoluminescence quantum yields. Over the last decade, both academic and industrial research have substantially advanced quantum dot light-emitting diode (QLED) technology, primarily through the development of higher-quality QDs and more refined device structures. A key element of these advancements includes progress in the electron transport layer (ETL) technology, with metal oxide (MO) nanoparticles (NPs) like ZnO and ZnMgO emerging as superior choices due to their robust performance. Nevertheless, scalability challenges, such as particle agglomeration and positive aging, have prompted research into organic semiconductors that match the performance of MO NPs. This review aims to provide a detailed examination and comprehensive understanding of recent advances and challenges in ETLs based on both MO NPs and organic semiconductors, guiding future commercialization efforts for QLEDs.

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胶体量子点发光二极管的最新进展与挑战：重点关注带有金属氧化物纳米粒子和有机半导体的电子传输层。

胶体量子点（QDs）具有独特的光学特性，如可调发射波长、窄发射光谱和极高的光致发光量子产率，因此在显示技术领域大有可为。在过去十年中，学术研究和工业研究都极大地推动了量子点发光二极管（QLED）技术的发展，主要是通过开发更高质量的量子点和更精细的器件结构。这些进步的关键因素包括电子传输层（ETL）技术的进步，氧化锌和氧化锌镁等金属氧化物纳米粒子（NPs）因其强大的性能而成为最佳选择。然而，颗粒团聚和正老化等可扩展性挑战促使人们研究与 MO NPs 性能相匹配的有机半导体。本综述旨在详细分析和全面了解基于 MO NPs 和有机半导体的 ETL 的最新进展和挑战，为未来 QLED 的商业化工作提供指导。

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来源期刊

Nanoscale Horizons Materials Science-General Materials Science

CiteScore

16.30

自引率

1.00%

发文量

141

期刊介绍： Nanoscale Horizons stands out as a premier journal for publishing exceptionally high-quality and innovative nanoscience and nanotechnology. The emphasis lies on original research that introduces a new concept or a novel perspective (a conceptual advance), prioritizing this over reporting technological improvements. Nevertheless, outstanding articles showcasing truly groundbreaking developments, including record-breaking performance, may also find a place in the journal. Published work must be of substantial general interest to our broad and diverse readership across the nanoscience and nanotechnology community.