In recent years, hybrid light-emitting diodes based on quantum dots and organic emitters (QD-OLEDs) have been extensively researched. QD-OLEDs have promising applications in the fields of lighting and displays due to the advantages, such as high efficiency, stable emission, high brightness, and superior color rendering properties. In this paper, we have summarized the state-of-the-art concepts to achieve high-performance QD-OLEDs. First, we introduce the emission principles of QDs and organic emitters and clarify their advantages in QD-OLEDs. In addition, we summarize the main approaches to realize QD-OLEDs, which combine the use of organic emitting materials with cadmium-containing QDs, InP-based QDs, perovskite QDs, or other sulfide-based QDs. Then, we conclude the typical methods to improve the device performance, including the regulation of the thickness of organic emitting layers, optimization of hole injection layers, selection of anode materials, and manipulation of QDs concentration. Finally, according to the current development status of QD-OLED technology, an outlook is provided regarding its future development trends and potential directions for further optimization.

中文翻译：

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基于量子点和有机发光二极管的混合发光二极管研究进展

近年来，基于量子点和有机发射器的混合发光二极管（QD-OLED）得到了广泛的研究。 QD-OLED由于具有高效率、发射稳定、高亮度和优异的显色性能等优点，在照明和显示领域具有广阔的应用前景。在本文中，我们总结了实现高性能 QD-OLED 的最先进概念。首先，我们介绍了QD和有机发光体的发光原理，并阐明了它们在QD-OLED中的优势。此外，我们还总结了实现 QD-OLED 的主要方法，将有机发光材料与含镉 QD、InP 基 QD、钙钛矿 QD 或其他硫化物基 QD 相结合。然后，我们总结了提高器件性能的典型方法，包括有机发光层厚度的调控、空穴注入层的优化、阳极材料的选择和量子点浓度的控制。最后，根据QD-OLED技术的当前发展现状，对其未来发展趋势和进一步优化的潜在方向进行了展望。