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1.北京交通大学 物理科学与工程学院, 北京 100044
2.北京理工大学 深圳研究院, 广东 深圳 518507
Published:05 April 2023,
Received:24 September 2022,
Revised:10 October 2022,
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刘萍,李宇,韦闯闯等.界面调控对柔性量子点电致发光器件性能的影响[J].发光学报,2023,44(04):641-656.
LIU Ping,LI Yu,WEI Chuangchuang,et al.Effects of Interface Regulation on Performances of Flexible Quantum Dot Electroluminescent Devices[J].Chinese Journal of Luminescence,2023,44(04):641-656.
刘萍,李宇,韦闯闯等.界面调控对柔性量子点电致发光器件性能的影响[J].发光学报,2023,44(04):641-656. DOI: 10.37188/CJL.20220345.
LIU Ping,LI Yu,WEI Chuangchuang,et al.Effects of Interface Regulation on Performances of Flexible Quantum Dot Electroluminescent Devices[J].Chinese Journal of Luminescence,2023,44(04):641-656. DOI: 10.37188/CJL.20220345.
近年来,柔性显示技术引起了人们的广泛关注,尤其在折叠手机、可穿戴电子等领域,柔性显示屏幕更是不可或缺。量子点发光二极管(Quantum dot light emitting diodes,QLEDs)因具有高色纯度、高效率、高稳定性等特点而在柔性显示领域展现了独特的优势。本文首先介绍了柔性量子点发光二极管(flex⁃QLEDs)及其近期进展,然后讨论了器件结构及界面调控对发光性能的影响。在多层异质结构的flex⁃QLEDs的基础上,总结了三种界面调控方法:阳极界面调控、阴极界面调控、发光层调控。调控聚焦于降低表面粗糙度、增强界面结合力、优化各层能级。最后,对目前flex⁃QLEDs的性能进行了比较与总结,并对未来面临的挑战和机遇进行了展望。
In recent years, flexible display technologies have attracted widespread attention in the field of folding mobile phones and wearable electronics. Especially, flexible displays are indispensable in these flexible electronics. Among them, quantum dot light emitting diodes (QLEDs) have great advantages due to their high color purity, high efficiency and good stability. In this paper, we first give a brief introduction of flexible QLEDs (flex-QLEDs) and summarize the recent development of flex-QLEDs. Then we discussed the device structure and the interface regulation of flex-QLEDs. For flex-QLEDs with multilayer heterostructures, the strategies are categorized into three: anode interface regulation, cathode interface regulation, and light-emitting layer regulation. The regulation focuses on reducing the surface roughness, enhancing the interfacial force, and optimizing the energy level. Finally, the performances of advanced flex-QLEDs are compared and summarized, and the future challenges and opportunities are prospected.
界面调控柔性器件电致发光量子点
interface regulationflexible deviceselectroluminescencequantum dots
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